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  • Highlights from the Oracle Customer Experience Summit @ OpenWorld

    - by Richard Lefebvre
    The Oracle Customer Experience Summit was the first-ever event covering the full breadth of Oracle's CX portfolio -- Marketing, Sales, Commerce, and Service. The purpose of the Summit was to articulate the customer experience imperative and to showcase the suite of Oracle products that can help our customers create the best possible customer experience. This topic has always been a very important one, but now that there are so many alternative companies to do business with and because people have such public ways to voice their displeasure, it's necessary for vendors to have multiple listening posts in place to gauge consumer sentiment. They need to know what is going on in real time and be able to react quickly to turn negative situations into positive ones. Those can then be shared in a social manner to enhance the brand and turn the customer into a repeat customer. The Summit was focused on Oracle's portfolio of products and entirely dedicated to customers who are committed to building great customer experiences within their businesses. Rather than DBAs, the attendees were business people looking to collaborate with other like-minded experts and find out how Oracle can help in terms of technology, best practices, and expertise. The event was at the Westin St. Francis Hotel in San Francisco as part of Oracle OpenWorld. We had eight hundred people attend, which was great for the first year. Next year, there's no doubt in my mind, we can raise that number to 5,000. Alignment and Logic Oracle's Customer Experience portfolio is made up of a combination of acquired and organic products owned by many people who are new to Oracle. We include homegrown Fusion CRM, as well as RightNow, Inquira, OPA, Vitrue, ATG, Endeca, and many others. The attendees knew of the acquisitions, so naturally they wanted to see how the products all fit together and hear the logic behind the portfolio. To tell them about our alignment, we needed to be aligned. To accomplish that, a cross functional team at Oracle agreed on the messaging so that every single Oracle presenter could cover the big picture before going deep into a product or topic. Talking about the full suite of products in one session produced overflow value for other products. And even though this internal coordination was a huge effort, everyone saw the value for our customers and for our long-term cooperation and success. Keynotes, Workshops, and Tents of Innovation We scored by having Seth Godin as our keynote speaker ? always provocative and popular. The opening keynote was a session orchestrated by Mark Hurd, Anthony Lye, and me. Mark set the stage by giving real-world examples of bad customer experiences, Anthony clearly articulated the business imperative for addressing these experiences, and I brought it all to life by taking the audience around the Customer Lifecycle and showing demos and videos, with partners included at each of the stops around the lifecycle. Brian Curran, a VP for RightNow Product Strategy, presented a session that was in high demand called The Economics of Customer Experience. People loved hearing how to build a business case and justify the cost of building a better customer experience. John Kembel, another VP for RightNow Product Strategy, held a workshop that customers raved about. It was based on the journey mapping methodology he created, which is a way to talk to customers about where they want to make improvements to their customers' experiences. He divided the audience into groups led by facilitators. Each person had the opportunity to engage with experts and peers and construct some real takeaways. The conference hotel was across from Union Square so we used that space to set up Innovation Tents. During the day we served lunch in the tents and partners showed their different innovative ideas. It was very interesting to see all the technologies and advancements. It also gave people a place to mix and mingle and to think about the fringe of where we could all take these ideas. Product Portfolio Plus Thought Leadership Of course there is always room for improvement, but the feedback on the format of the conference was positive. Ninety percent of the sessions had either a partner or a customer teamed with an Oracle presenter. The presentations weren't dry, one-way information dumps, but more interactive. I just followed up with a CEO who attended the conference with his Head of Marketing. He told me that they are using John Kembel's journey mapping methodology across the organization to pull people together. This sort of thought leadership in these highly competitive areas gives Oracle permission to engage around the technology. We have to differentiate ourselves and it's harder to do on the product side because everyone looks the same on paper. But on thought leadership ? we can, and did, take some really big steps. David Vap Group Vice President Oracle Applications Product Development

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  • Spam Activity From my computer

    - by Bnymn
    I'm using Ubuntu 12.04 64bit. I'm using HTTP proxy over ssh as mentioned here. If I do not start TinyProxy, everything is OK. But, when I start TinyProxy, I'm getting the following. I think there is an application running on my machine and watching the proxy to start. But I could not decide which one it could be. ps ax PID TTY STAT TIME COMMAND 1 ? Ss 0:01 /sbin/init 2 ? S 0:00 [kthreadd] 3 ? S 0:00 [ksoftirqd/0] 6 ? S 0:00 [migration/0] 7 ? S 0:00 [watchdog/0] 21 ? S< 0:00 [cpuset] 22 ? S< 0:00 [khelper] 23 ? S 0:00 [kdevtmpfs] 24 ? S< 0:00 [netns] 26 ? S 0:00 [sync_supers] 27 ? S 0:00 [bdi-default] 28 ? S< 0:00 [kintegrityd] 29 ? S< 0:00 [kblockd] 30 ? S< 0:00 [ata_sff] 31 ? S 0:00 [khubd] 32 ? S< 0:00 [md] 34 ? S 0:00 [khungtaskd] 35 ? S 0:00 [kswapd0] 36 ? SN 0:00 [ksmd] 37 ? SN 0:00 [khugepaged] 38 ? S 0:00 [fsnotify_mark] 39 ? S 0:00 [ecryptfs-kthrea] 40 ? S< 0:00 [crypto] 48 ? S< 0:00 [kthrotld] 49 ? S 0:00 [scsi_eh_0] 50 ? S 0:00 [scsi_eh_1] 51 ? S 0:00 [scsi_eh_2] 52 ? S 0:00 [scsi_eh_3] 75 ? S< 0:00 [devfreq_wq] 240 ? S< 0:00 [xfs_mru_cache] 241 ? S< 0:00 [xfslogd] 242 ? S< 0:00 [xfsdatad] 243 ? S< 0:00 [xfsconvertd] 245 ? S 0:00 [xfsbufd/sda3] 246 ? S 0:01 [xfsaild/sda3] 330 ? S 0:00 upstart-udev-bridge --daemon 333 ? Ss 0:00 /sbin/udevd --daemon 472 ? S< 0:00 [cfg80211] 479 ? S< 0:00 [kpsmoused] 671 ? S 0:00 upstart-socket-bridge --daemon 779 ? S 0:00 [xfsbufd/sda4] 781 ? S 0:01 [xfsaild/sda4] 785 ? S< 0:00 [ttm_swap] 800 ? S< 0:00 [hd-audio0] 803 ? S< 0:00 [hd-audio1] 857 ? Sl 0:00 rsyslogd -c5 869 ? Ss 0:04 dbus-daemon --system --fork --activation=upstart 881 ? Ss 0:00 /usr/sbin/modem-manager 883 ? Ss 0:00 /usr/sbin/bluetoothd 905 ? Ssl 0:02 NetworkManager 906 ? Ss 0:00 /usr/sbin/cupsd -F 910 ? Sl 0:02 /usr/lib/policykit-1/polkitd --no-debug 918 ? S 0:00 avahi-daemon: running [bunyamin-hp.local] 919 ? S 0:00 avahi-daemon: chroot helper 920 ? S< 0:00 [krfcommd] 956 ? Ss 0:00 /sbin/wpa_supplicant -B -P /run/sendsigs.omit.d/wpasupplicant.pid -u -s -O /var/run/wpa_supplicant 980 tty4 Ss+ 0:00 /sbin/getty -8 38400 tty4 985 tty5 Ss+ 0:00 /sbin/getty -8 38400 tty5 1000 tty2 Ss+ 0:00 /sbin/getty -8 38400 tty2 1006 tty3 Ss+ 0:00 /sbin/getty -8 38400 tty3 1009 tty6 Ss+ 0:00 /sbin/getty -8 38400 tty6 1024 ? Ss 0:00 acpid -c /etc/acpi/events -s /var/run/acpid.socket 1025 ? Ss 0:00 atd 1026 ? Ss 0:00 cron 1029 ? Ss 0:01 /usr/sbin/irqbalance 1034 ? Ssl 0:00 whoopsie 1091 ? Ssl 0:00 lightdm 1216 tty1 Ss+ 0:00 /sbin/getty -8 38400 tty1 1224 ? Sl 0:00 /usr/lib/accountsservice/accounts-daemon 1241 ? Sl 0:00 /usr/sbin/console-kit-daemon --no-daemon 1356 ? Sl 0:00 /usr/lib/upower/upowerd 1447 ? Sl 0:00 /usr/lib/x86_64-linux-gnu/colord/colord 1539 ? SNl 0:00 /usr/lib/rtkit/rtkit-daemon 1723 ? Sl 0:00 /usr/lib/udisks/udisks-daemon 1724 ? S 0:00 udisks-daemon: not polling any devices 2077 ? Z 0:00 [lightdm] <defunct> 2433 ? Z 0:00 [lightdm] <defunct> 3491 ? S 0:00 [flush-8:0] 4023 ? S 0:00 [kworker/u:14] 4034 ? S 0:00 [migration/1] 4035 ? S 0:00 [kworker/1:3] 4036 ? S 0:00 [ksoftirqd/1] 4037 ? S 0:00 [watchdog/1] 4038 ? S 0:00 [migration/2] 4040 ? S 0:00 [ksoftirqd/2] 4041 ? S 0:00 [watchdog/2] 4042 ? S 0:00 [migration/3] 4043 ? S 0:00 [kworker/3:1] 4044 ? S 0:00 [ksoftirqd/3] 4045 ? S 0:00 [watchdog/3] 4047 ? S 0:00 [irq/43-mei] 4070 ? S 0:00 [kworker/3:0] 4072 ? S 0:00 [kworker/1:0] 4164 ? Ss 0:00 anacron -s 4549 tty7 Ss+ 1:13 /usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch 4683 ? Sl 0:00 lightdm --session-child 12 47 4718 ? Sl 0:00 /usr/bin/gnome-keyring-daemon --daemonize --login 4729 ? Ssl 0:00 gnome-session --session=gnome-fallback 4765 ? Ss 0:00 /usr/bin/ssh-agent /usr/bin/dbus-launch --exit-with-session gnome-session --session=gnome-fallback 4768 ? S 0:00 /usr/bin/dbus-launch --exit-with-session gnome-session --session=gnome-fallback 4769 ? Ss 0:00 //bin/dbus-daemon --fork --print-pid 5 --print-address 7 --session 4779 ? Sl 0:01 /usr/lib/gnome-settings-daemon/gnome-settings-daemon 4786 ? S 0:00 /usr/lib/gvfs/gvfsd 4788 ? Sl 0:00 /usr/lib/gvfs//gvfs-fuse-daemon -f /home/bunyamin/.gvfs 4797 ? Sl 0:00 /usr/lib/gnome-settings-daemon/gsd-printer 4799 ? Sl 0:03 metacity 4805 ? S 0:00 /usr/lib/x86_64-linux-gnu/gconf/gconfd-2 4811 ? Sl 0:10 gnome-panel 4814 ? S 0:00 syndaemon -i 2.0 -K -R -t 4819 ? S<l 0:00 /usr/bin/pulseaudio --start --log-target=syslog 4821 ? Sl 0:00 /usr/lib/dconf/dconf-service 4826 ? Sl 0:00 /usr/lib/gnome-settings-daemon/gnome-fallback-mount-helper 4828 ? Sl 0:06 nautilus -n 4830 ? Sl 0:02 nm-applet 4832 ? Sl 0:00 /usr/lib/policykit-1-gnome/polkit-gnome-authentication-agent-1 4835 ? Sl 0:00 bluetooth-applet 4851 ? S 0:00 /usr/lib/pulseaudio/pulse/gconf-helper 4854 ? Sl 0:04 /usr/lib/indicator-applet/indicator-applet-complete 4859 ? S 0:00 /usr/lib/gvfs/gvfs-gdu-volume-monitor 4863 ? S 0:00 /usr/lib/gvfs/gvfs-gphoto2-volume-monitor 4865 ? Sl 0:00 /usr/lib/gvfs/gvfs-afc-volume-monitor 4871 ? S 0:00 /usr/lib/gvfs/gvfsd-trash --spawner :1.6 /org/gtk/gvfs/exec_spaw/0 4874 ? Sl 0:00 /usr/lib/indicator-application/indicator-application-service 4876 ? Sl 0:00 /usr/lib/indicator-datetime/indicator-datetime-service 4878 ? Sl 0:00 /usr/lib/indicator-messages/indicator-messages-service 4887 ? Sl 0:00 /usr/lib/indicator-printers/indicator-printers-service 4888 ? Sl 0:00 /usr/lib/indicator-session/indicator-session-service 4889 ? Sl 0:00 /usr/lib/indicator-sound/indicator-sound-service 4906 ? S 0:00 /usr/lib/geoclue/geoclue-master 4929 ? S 0:00 /usr/lib/ubuntu-geoip/ubuntu-geoip-provider 4938 ? Sl 0:11 /usr/lib/gnome-applets/multiload-applet-2 4939 ? Sl 0:01 /usr/lib/gnome-applets/cpufreq-applet 4953 ? S 0:00 /usr/lib/gvfs/gvfsd-metadata 4955 ? S 0:00 /usr/lib/gvfs/gvfsd-burn --spawner :1.6 /org/gtk/gvfs/exec_spaw/1 4957 ? Sl 3:22 /usr/lib/firefox/firefox 4973 ? Sl 0:00 /usr/lib/x86_64-linux-gnu/at-spi2-core/at-spi-bus-launcher 4997 ? Sl 0:00 /usr/lib/gnome-disk-utility/gdu-notification-daemon 5000 ? Sl 0:00 telepathy-indicator 5007 ? Sl 0:00 /usr/lib/telepathy/mission-control-5 5012 ? Sl 0:00 /usr/lib/gnome-online-accounts/goa-daemon 5018 ? Sl 0:00 gnome-screensaver 5019 ? Sl 0:01 zeitgeist-datahub 5025 ? Sl 0:00 /usr/bin/zeitgeist-daemon 5033 ? Sl 0:00 /usr/lib/zeitgeist/zeitgeist-fts 5041 ? S 0:00 /bin/cat 5052 ? Sl 0:08 /usr/bin/gnome-terminal -x /bin/sh -c '/home/bunyamin/Desktop/SSH Tunnel' 5058 ? S 0:00 gnome-pty-helper 5067 ? Sl 0:00 update-notifier 5090 ? S 0:00 /usr/bin/python /usr/lib/system-service/system-service-d 5130 ? Sl 0:00 /usr/lib/deja-dup/deja-dup/deja-dup-monitor 5135 ? S 0:00 /bin/sh -c nice run-parts --report /etc/cron.daily 5136 ? SN 0:00 run-parts --report /etc/cron.daily 5358 pts/4 Ss 0:00 bash 5482 ? S 0:00 [kworker/0:1] 5487 ? S 0:01 [kworker/2:0] 5550 ? Sl 1:15 /usr/lib/firefox/plugin-container /usr/lib/flashplugin-installer/libflashplayer.so -greomni /usr/lib/firefox/omni.ja 4957 true plugin 5717 ? S 0:00 /usr/lib/cups/notifier/dbus dbus:// 5824 ? SN 0:00 /bin/sh /etc/cron.daily/update-notifier-common 5825 ? SN 0:00 /usr/bin/python /usr/lib/update-notifier/package-data-downloader 5872 ? Sl 0:00 /usr/lib/notify-osd/notify-osd 5888 ? S 0:00 /sbin/udevd --daemon 5889 ? S 0:00 /sbin/udevd --daemon 5909 ? S 0:00 /sbin/dhclient -d -4 -sf /usr/lib/NetworkManager/nm-dhcp-client.action -pf /var/run/sendsigs.omit.d/network-manager.dhclient-eth1.pid -lf /var/lib/dhcp/dhclient-f5f0 5912 ? S 0:00 /usr/sbin/dnsmasq --no-resolv --keep-in-foreground --no-hosts --bind-interfaces --pid-file=/var/run/sendsigs.omit.d/network-manager.dnsmasq.pid --listen-address=127. 5975 pts/1 Ss+ 0:00 /bin/sh -c '/home/bunyamin/Desktop/SSH Tunnel' 5976 pts/1 S+ 0:00 /bin/sh /home/bunyamin/Desktop/SSH Tunnel 5977 pts/1 S+ 0:00 ssh -p443 [email protected] -L 8000:127.0.0.1:8000 5980 ? Sl 0:00 /usr/lib/gvfs/gvfsd-http --spawner :1.6 /org/gtk/gvfs/exec_spaw/2 6034 ? S 0:00 [kworker/u:0] 6054 ? S 0:00 [kworker/2:2] 6070 ? S 0:00 [kworker/0:3] 6094 ? Sl 0:02 gedit /home/bunyamin/Desktop/a.html 6101 ? S 0:00 [kworker/0:2] 6130 pts/4 R+ 0:00 ps ax TinyProxy LOG connect to ad.adserverplus.com:80 mx1.u4gf.com - - [17/Oct/2012 07:38:53] "GET http://ad.tagjunction.com/imp?Z=160x600&s=2959021&T=3&_salt=1516586745&B=12&m=2&u=http%3A%2F%2Fsunshinefelling.com%2Findex.php%3Fview%3Darticle%26catid%3D45%253Aplus-size-dresses%26id%3D7512%253A2012-01-25-22-42-00%26format%3Dpdf%26option%3Dcom_content%26Itemid%3D101&r=1 HTTP/1.0" - - bye bye bye connect to ad.adserverplus.com:80 connect to ad.bharatstudent.com:80 connect to ad.yieldmanager.com:80 142.91.199.250.rdns.ubiquity.io - - [17/Oct/2012 07:38:53] "GET http://ad.adserverplus.com/imp?Z=0x0&y=29&s=2913320&_salt=2228719469&B=12&m=2&r=1 HTTP/1.0" - - 173.208.94.117 - - [17/Oct/2012 07:38:53] "GET http://ad.adserverplus.com/imp?Z=0x0&y=29&s=3187816&_salt=462045326&B=12&m=2&r=1 HTTP/1.0" - - mx1.a54m.com - - [17/Oct/2012 07:38:53] "GET http://ad.adserverplus.com/imp?Z=300x250&s=2887338&T=3&_salt=2925281520&B=12&m=2&u=http%3A%2F%2Fsecretskirt.com%2Findex.php%3Foption%3Dcom_contact%26view%3Dcontact%26id%3D1%26Itemid%3D95&r=1 HTTP/1.0" - - 108.62.75.54.rdns.ubiquityservers.com - - [17/Oct/2012 07:38:53] "GET http://ad.yieldmanager.com/imp?Z=300x250&s=3218437&T=3&_salt=2939054384&B=12&m=2&u=http%3A%2F%2Fwww.vifinances.com%2Ffinance-investing%2Finsurance-investment%2Fis-life-insurance-investment-necessarily-the-way-to-go.html&r=1 HTTP/1.0" - - connect to ad.yieldmanager.com:80 connect to ad.globe7.com:80 bye connect to ad.globe7.com:80 connect to ad.globe7.com:80 bye 173.208.94.22 - - [17/Oct/2012 07:38:53] "GET http://ad.yieldmanager.com/imp?Z=728x90&s=2922824&T=3&_salt=705371051&B=12&m=2&u=%3A%2F%2Fsunshinefelling.com%2Findex.php%3Fview%3Darticle%26catid%3D44%3Amature-womens-fashion%26id%3D6917%3A2012-01-25-22-37-27%26tmpl%3Dcomponent%26print%3D1%26layout%3Ddefault%26page%3D&r=1 HTTP/1.0" - - bye 23.19.10.44.rdns.ubiquity.io - - [17/Oct/2012 07:38:53] "GET http://ad.globe7.com/st?ad_type=iframe&ad_size=160x600&section=3512129&pub_url=${PUB_URL} HTTP/1.0" - - connect to ad.yieldmanager.com:80 bye 142.91.189.27.rdns.ubiquity.io - - [17/Oct/2012 07:38:53] "GET http://ad.globe7.com/imp?Z=0x0&y=29&s=3660215&_salt=2921537966&B=12&m=2&r=1 HTTP/1.0" - - connect to ad.scanmedios.com:80 bye 142.91.217.158.rdns.ubiquity.io - - [17/Oct/2012 07:38:53] "GET http://ad.globaltakeoff.net/st?ad_type=iframe&ad_size=160x600&section=2077929&pub_url=${PUB_URL} HTTP/1.0" - - 23.19.76.194.rdns.ubiquity.io - - [17/Oct/2012 07:38:53] "GET http://ad.yieldmanager.com/imp?Z=728x90&s=3127996&T=3&_salt=1952612979&B=12&m=2&u=http%3A%2F%2Fwww.oseey.com%2Fpure-core-watch%2Fcarbon-fiber-watch%2Fcarbon-monoxide-poisoning-awareness.html&r=1 HTTP/1.0" - - mx1.e6sb.com - - [17/Oct/2012 07:38:53] "GET http://ad.scanmedios.com/imp?Z=728x90&s=3522638&T=3&_salt=3444993091&B=12&m=2&u=http%3A%2F%2Fsunshinefelling.com%2Findex.php%3Foption%3Dcom_content%26view%3Darticle%26id%3D6013%3A2012-01-25-22-25-54%26catid%3D40%3Abig-beautiful-women-fashion%26Itemid%3D96&r=1 HTTP/1.0" - - connect to ad.tagjunction.com:80 connect to ad.yieldmanager.com:80 bye connect to ad.yieldmanager.com:80 23.19.76.154.rdns.ubiquity.io - - [17/Oct/2012 07:38:53] "GET http://ad.adserverplus.com/st?ad_type=iframe&ad_size=300x250&section=2569393 HTTP/1.0" - - connect to ads.creafi-online-media.com:80 bye 108.62.109.115.rdns.ubiquityservers.com - - [17/Oct/2012 07:38:53] "GET http://ad.yieldmanager.com/imp?Z=0x0&y=29&s=3315330&_salt=2385926515&B=12&m=2&r=1 HTTP/1.0" - - 142.91.217.214.rdns.ubiquity.io - - [17/Oct/2012 07:38:53] "GET http://ad.yieldmanager.com/imp?Z=160x600&s=3634166&T=3&_salt=1590442300&B=12&m=2&u=http%3A%2F%2Fwealthterritory.com%2Findex.php%3Foption%3Dcom_mailto%26tmpl%3Dcomponent%26link%3DaHR0cDovL3dlYWx0aHRlcnJpdG9yeS5jb20vaW5kZXgucGhwP29wdGlvbj1jb21fY29udGVudCZ2aWV3PWFydGljbGUmaWQ9NDY2NDoyMDExLTA3LTA2LTEzLTI2LTUwJmNhdGlkPTQxOnNlcnZpY2VzJkl0ZW1pZ&r=1 HTTP/1.0" - - 108.62.185.184.rdns.ubiquityservers.com - - [17/Oct/2012 07:38:53] "GET http://ads.creafi-online-media.com/imp?Z=728x90&s=2885766&T=3&_salt=107120374&B=12&m=2&u=http%3A%2F%2Feconomicccore.com%2Findex.php%3Foption%3Dcom_content%26view%3Dcategory%26layout%3Dblog%26id%3D48%26Itemid%3D98%26limitstart%3D45&r=1 HTTP/1.0" - - bye bye bye connect to ad.adserverplus.com:80 connect to ad.yieldmanager.com:80 connect to ad.tagjunction.com:80 bye 108.62.75.252.rdns.ubiquityservers.com - - [17/Oct/2012 07:38:53] "GET http://ad.adserverplus.com/st?ad_type=iframe&ad_size=728x90&section=3213387&pub_url=${PUB_URL} HTTP/1.0" - - bye connect to ad.tagjunction.com:80 bye connect to ad.yieldmanager.com:80 173.208.94.29 - - [17/Oct/2012 07:38:53] "GET http://ad.tagjunction.com/st?ad_type=iframe&ad_size=728x90&section=3006024&pub_url=${PUB_URL} HTTP/1.0" - - 23.19.31.84.rdns.ubiquity.io - - [17/Oct/2012 07:38:53] "GET http://ad.yieldmanager.com/imp?Z=0x0&y=29&s=2586703&_salt=2905995697&B=12&m=2&r=1 HTTP/1.0" - - oxx-ef-Words.ipwagon.net - - [17/Oct/2012 07:38:53] "GET http://ad.tagjunction.com/imp?Z=0x0&y=29&s=3630499&_salt=4037530564&B=12&m=2&r=1 HTTP/1.0" - - 142.91.185.53.rdns.ubiquity.io - - [17/Oct/2012 07:38:53] "GET http://ad.tagjunction.com/imp?Z=0x0&y=29&s=3512541&_salt=1134875077&B=12&m=2&r=1 HTTP/1.0" - - connect to ad.globe7.com:80 108.177.187.37.rdns.ubiquity.io - - [17/Oct/2012 07:38:53] "GET http://ad.yieldmanager.com/imp?Z=300x250&s=3168350&T=3&_salt=548860046&B=12&m=2&u=http%3A%2F%2Flifehealthyliving.com%2Findex.php%3Fview%3Darticle%26catid%3D34%253Ahealthy-food%26id%3D4681%253A2012-05-16-20-40-19%26tmpl%3Dcomponent%26print%3D1%26layout%3Ddefault%26page%3D%26option%3Dcom_content%26Itemid%3D53&r=1 HTTP/1.0" - - connect to ad.adserverplus.com:80 bye connect to ads.creafi-online-media.com:80 108.177.223.180.rdns.ubiquity.io - - [17/Oct/2012 07:38:53] "GET http://ad.adserverplus.com/imp?Z=300x250&s=3331290&T=3&_salt=1270334669&B=12&m=2&u=http%3A%2F%2Fwww.vegls.com%2Faccident-attorneys-firms%2Fauto-accident-attorney%2Ffind-the-correct-auto-accident-attorney.html&r=1 HTTP/1.0" - - bye 142.91.185.38.rdns.ubiquity.io - - [17/Oct/2012 07:38:53] "GET http://ad.globe7.com/st?ad_type=iframe&ad_size=160x600&section=818253 HTTP/1.0" - - connect to ad.yieldmanager.com:80 bye bye bye 108.62.75.230.rdns.ubiquityservers.com - - [17/Oct/2012 07:38:53] "GET http://ads.creafi-online-media.com/st?ad_type=pop&ad_size=0x0&section=3323456&banned_pop_types=29&pop_times=1&pop_frequency=86400&pub_url=${PUB_URL} HTTP/1.0" - - connect to ad.adserverplus.com:80 bye connect to ad.adserverplus.com:80 bye 142.91.217.194.rdns.ubiquity.io - - [17/Oct/2012 07:38:53] "GET http://ad.yieldmanager.com/imp?Z=300x250&s=3068801&T=3&_salt=1246107431&B=12&m=2&u=http%3A%2F%2Fmoodoffashionandbeauty.com%2Findex.php%3Foption%3Dcom_content%26view%3Darticle%26id%3D756%3A2011-07-13-13-13-43%26catid%3D36%3Afashion-clothes%26Itemid%3D55&r=1 HTTP/1.0" - - connect to ad.smxchange.com:80 108.62.185.235.rdns.ubiquityservers.com - - [17/Oct/2012 07:38:53] "GET http://ad.adserverplus.com/st?ad_type=iframe&ad_size=300x250&section=3307618&pub_url=${PUB_URL} HTTP/1.0" - - connect to ad.globe7.com:80 bye connect to ad.yieldmanager.com:80 bye bye connect to ad.adserverplus.com:80 connect to ad.yieldmanager.com:80 connect to ad.adserverplus.com:80 connect to ad.yieldmanager.com:80 108.177.168.183.rdns.ubiquity.io - - [17/Oct/2012 07:38:53] "GET http://ad.globe7.com/imp?Z=300x250&s=3582877&T=3&_salt=3271923155&B=12&m=2&u=http%3A%2F%2Fwomenhealthroad.com%2Findex.php%3Foption%3Dcom_content%26view%3Darticle%26id%3D5780%3A2011-12-12-16-56-53%26catid%3D40%3Ahealth-issues%26Itemid%3D96&r=1 HTTP/1.0" - - 23.19.3.100.rdns.ubiquity.io - - [17/Oct/2012 07:38:53] "GET http://ad.yieldmanager.com/imp?Z=160x600&s=2895969&T=3&_salt=207805714&B=12&m=2&u=http%3A%2F%2Feconomicccore.com%2Findex.php%3Fview%3Darticle%26catid%3D46%253Aeconomic-news%26id%3D6079%253A2011-09-29-07-39-13%26format%3Dpdf%26option%3Dcom_content%26Itemid%3D96&r=1 HTTP/1.0" - - bye 142.91.199.212.rdns.ubiquity.io - - [17/Oct/2012 07:38:53] "GET http://ad.adserverplus.com/st?ad_type=iframe&ad_size=300x250&section=2956039&pub_url=${PUB_URL} HTTP/1.0" - - bye 142.91.189.169.rdns.ubiquity.io - - [17/Oct/2012 07:38:53] "GET http://ad.yieldmanager.com/imp?Z=728x90&s=3004691&T=3&_salt=2747591679&B=12&m=2&u=http%3A%2F%2Fwww.qtsfinancial.com%2Findex.php%3Foption%3Dcom_content%26view%3Darticle%26id%3D5406%3Afinancial-statement-english-page%26catid%3D43%3Afinancial-analysis%26Itemid%3D99&r=1 HTTP/1.0" - - connect to ad.adserverplus.com:80 23.19.31.58.rdns.ubiquity.io - - [17/Oct/2012 07:38:53] "GET http://ad.yieldmanager.com/imp?Z=0x0&y=29&s=3323560&_salt=3172064457&B=12&m=2&r=1 HTTP/1.0" - - connect to ad.adserverplus.com:80 iei-ix-Words.ipwagon.net - - [17/Oct/2012 07:38:53] "GET http://ad.adserverplus.com/imp?Z=728x90&s=3187813&T=3&_salt=1110944041&B=12&m=2&u=http%3A%2F%2Fwww.workinhouses.com%2Fhtml%2Fwallingford-ct-connecticuts-best-places-for-your-home.html&r=1 HTTP/1.0" - - connect to cookex.amp.yahoo.com:80 173.208.94.116 - - [17/Oct/2012 07:38:53] "GET http://ad.adserverplus.com/st?ad_type=iframe&ad_size=300x250&section=3213592&pub_url=${PUB_URL} HTTP/1.0" - - bye bye connect to ad.yieldmanager.com:80 connect to ads.creafi-online-media.com:80 bye 108.62.75.99.rdns.ubiquityservers.com - - [17/Oct/2012 07:38:53] "GET http://ad.adserverplus.com/imp?Z=160x600&s=2913321&T=3&_salt=333033369&B=12&m=2&u=http%3A%2F%2Ffashionstreetlight.com%2Findex.php%3Foption%3Dcom_content%26view%3Darticle%26id%3D28850%3A2011-12-20-12-59-39%26catid%3D45%3Afashion-accessories%26Itemid%3D101&r=1 HTTP/1.0" - - bye 142.91.217.208.rdns.ubiquity.io - - [17/Oct/2012 07:38:53] "GET http://cookex.amp.yahoo.com/v2/cexposer/SIG=18kthu27g/*http%3A//ad.yieldmanager.com/imp?Z=300x250&s=2682517&T=3&_salt=1378331643&B=12&m=2&u=http%3A%2F%2Fwww.economicwindows.com%2Findex.php%3Fview%3Darticle%26catid%3D40%253Afinancial-info%26id%3D3854%253A2011-07-06-13-25-37%26format%3Dpdf%26option%3Dcom_content%26Itemid%3D96&r=1 HTTP/1.0" - - bye bye bye 108.62.185.228.rdns.ubiquityservers.com - - [17/Oct/2012 07:38:53] "GET http://ad.yieldmanager.com/imp?Z=0x0&y=29&s=3315448&_salt=4241487555&B=12&m=2&r=1 HTTP/1.0" - - 108.62.185.220.rdns.ubiquityservers.com - - [17/Oct/2012 07:38:53] "GET http://ads.creafi-online-media.com/st?ad_type=iframe&ad_size=728x90&section=3269968 HTTP/1.0" - - connect to ad.tagjunction.com:80 bye connect to ad.globe7.com:80 bye 142.91.185.47.rdns.ubiquity.io - - [17/Oct/2012 07:38:53] "GET http://ad.tagjunction.com/st?ad_type=pop&ad_size=0x0&section=2958317&banned_pop_types=29&pop_times=1&pop_frequency=0&pub_url=${PUB_URL} HTTP/1.0" - - bye 108.177.168.183.rdns.ubiquity.io - - [17/Oct/2012 07:38:53] "GET http://ad.globe7.com/imp?Z=160x600&s=3582877&T=3&_salt=1313872999&B=12&m=2&u=http%3A%2F%2Fwomenhealthroad.com%2Findex.php%3Foption%3Dcom_content%26view%3Darticle%26id%3D5753%3A2011-12-12-16-56-46%26catid%3D40%3Ahealth-issues%26Itemid%3D96&r=1 HTTP/1.0" - - connect to ad.tagjunction.com:80 bye connect to ad.globe7.com:80 bye connect to ad.adserverplus.com:80 108.62.75.53.rdns.ubiquityservers.com - - [17/Oct/2012 07:38:53] "GET http://ad.tagjunction.com/imp?Z=300x250&s=3127172&T=3&_salt=2152278771&B=12&m=2&u=http%3A%2F%2Fwww.oslims.com%2Ffashion-coffee%2Ffashion-slimming-coffee%2Fso-whats-your-poison-coffee-or-tea.html&r=1 HTTP/1.0" - - connect to ad.yieldmanager.com:80 bye bye 108.62.75.170.rdns.ubiquityservers.com - - [17/Oct/2012 07:38:53] "GET http://ad.adserverplus.com/imp?Z=0x0&y=29&s=2909210&_salt=1773835502&B=12&m=2&r=1 HTTP/1.0" - - 23.19.79.3.rdns.ubiquity.io - - [17/Oct/2012 07:38:53] "GET http://ad.globe7.com/st?ad_type=iframe&ad_size=728x90&section=3571505&pub_url=${PUB_URL} HTTP/1.0" - - 142.91.217.216.rdns.ubiquity.io - - [17/Oct/2012 07:38:53] "GET http://ad.yieldmanager.com/imp?Z=160x600&s=3630472&T=3&_salt=462936220&B=12&m=2&u=http%3A%2F%2Fwww.economicwindows.com%2Findex.php%3Fview%3Darticle%26catid%3D41%253Afinancial-services%26id%3D4854%253A2011-07-06-13-26-56%26tmpl%3Dcomponent%26print%3D1%26layout%3Ddefault%26page%3D%26option%3Dcom_content%26Itemid%3D97&r=1 HTTP/1.0" - - connect to ad.yieldmanager.com:80 connect to ad.adserverplus.com:80 connect to ad.yieldmanager.com:80 bye connect to ad.yieldmanager.com:80 bye connect to ad.yieldmanager.com:80 142.91.189.176.rdns.ubiquity.io - - [17/Oct/2012 07:38:53] "GET http://ad.yieldmanager.com/imp?Z=160x600&s=3187822&T=3&_salt=325267799&B=12&m=2&u=http%3A%2F%2Feconomysea.com%2Findex.php%3Foption%3Dcom_mailto%26tmpl%3Dcomponent%26link%3DaHR0cDovL2Vjb25vbXlzZWEuY29tL2luZGV4LnBocD9vcHRpb249Y29tX2NvbnRlbnQmdmlldz1hcnRpY2xlJmlkPTYzNDk6MjAxMS0wOS0yOC0yMC0wNC0xOSZjYXRpZD00NzplY29ub21pYy1uZXdzJkl0ZW1pZD05Nw&r=1 HTTP/1.0" - - connect to ad.adserverplus.com:80 142.91.190.240.rdns.ubiquity.io - - [17/Oct/2012 07:38:53] "GET http://ad.yieldmanager.com/imp?Z=160x600&s=2956040&T=3&_salt=3354730349&B=12&m=2&u=http%3A%2F%2Fdomarketings.com%2Findex.php%3Foption%3Dcom_content%26view%3Darticle%26id%3D279%3AWhy-Contractor-Leads-Are-Best-For-Getting-Ideal-Construction-Prospects%26catid%3D2%3Abusiness&r=1 HTTP/1.0" - - bye 108.62.75.6.rdns.ubiquityservers.com - - [17/Oct/2012 07:38:53] "GET http://ad.yieldmanager.com/imp?Z=160x600&s=3323456&T=3&_salt=1244915826&B=12&m=2&u=http%3A%2F%2Fdomarketings.com%2Findex.php%3Foption%3Dcom_content%26view%3Darticle%26id%3D989%3AThe-Basics-of-Failure-Mode-and-Effective-Analysis%26catid%3D2%3Abusiness&r=1 HTTP/1.0" - - bye 142.91.217.220.rdns.ubiquity.io - - [17/Oct/2012 07:38:53] "GET http://ad.yieldmanager.com/imp?Z=728x90&s=2921135&T=3&_salt=1337464905&B=12&m=2&u=http%3A%2F%2Financezone.com%2Findex.php%3Foption%3Dcom_content%26view%3Darticle%26id%3D7236%3A2011-09-05-19-56-54%26catid%3D49%3Acareer-banking%26Itemid%3D99&r=1 HTTP/1.0" - - bye connect to ad.yieldmanager.com:80 108.62.178.229.rdns.ubiquityservers.com - - [17/Oct/2012 07:38:53] "GET http://ad.adserverplus.com/st?ad_type=iframe&ad_size=160x600&section=3168350&pub_url=${PUB_URL} HTTP/1.0" - - connect to ad.yieldmanager.com:80 108.177.168.187.rdns.ubiquity.io - - [17/Oct/2012 07:38:53] "GET http://ad.smxchange.com/st?ad_type=iframe&ad_size=300x250&section=3285387&pop_nofreqcap=1&pub_url=${PUB_URL} HTTP/1.0" - - skg-wr-Words.ipwagon.net - - [17/Oct/2012 07:38:53] "GET http://ad.yieldmanager.com/imp?Z=0x0&y=29&s=3153972&_salt=3512711469&B=12&m=2&r=1 HTTP/1.0" - - bye connect to ad.yieldmanager.com:80 bye connect to ad.yieldmanager.com:80 mx1.u4gf.com - - [17/Oct/2012 07:38:53] "GET http://ad.yieldmanager.com/imp?Z=160x600&s=2959021&T=3&_salt=1516586745&B=12&m=2&u=http%3A%2F%2Fsunshinefelling.com%2Findex.php%3Fview%3Darticle%26catid%3D45%253Aplus-size-dresses%26id%3D7512%253A2012-01-25-22-42-00%26format%3Dpdf%26option%3Dcom_content%26Itemid%3D101&r=1 HTTP/1.0" - -

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  • Using scipy.interpolate.splrep function

    - by Koustav Ghosal
    I am trying to fit a cubic spline to a given set of points. My points are not ordered. I CANNOT sort or reorder the points, since I need that information. But since the function scipy.interpolate.splrep works only on non-duplicate and monotonically increasing points I have defined a function that maps the x-coordinates to a monotonically increasing space. My old points are: xpoints=[4913.0, 4912.0, 4914.0, 4913.0, 4913.0, 4913.0, 4914.0, 4915.0, 4918.0, 4921.0, 4925.0, 4932.0, 4938.0, 4945.0, 4950.0, 4954.0, 4955.0, 4957.0, 4956.0, 4953.0, 4949.0, 4943.0, 4933.0, 4921.0, 4911.0, 4898.0, 4886.0, 4874.0, 4865.0, 4858.0, 4853.0, 4849.0, 4848.0, 4849.0, 4851.0, 4858.0, 4864.0, 4869.0, 4877.0, 4884.0, 4893.0, 4903.0, 4913.0, 4923.0, 4935.0, 4947.0, 4959.0, 4970.0, 4981.0, 4991.0, 5000.0, 5005.0, 5010.0, 5015.0, 5019.0, 5020.0, 5021.0, 5023.0, 5025.0, 5027.0, 5027.0, 5028.0, 5028.0, 5030.0, 5031.0, 5033.0, 5035.0, 5037.0, 5040.0, 5043.0] ypoints=[10557.0, 10563.0, 10567.0, 10571.0, 10575.0, 10577.0, 10578.0, 10581.0, 10582.0, 10582.0, 10582.0, 10581.0, 10578.0, 10576.0, 10572.0, 10567.0, 10560.0, 10550.0, 10541.0, 10531.0, 10520.0, 10511.0, 10503.0, 10496.0, 10490.0, 10487.0, 10488.0, 10488.0, 10490.0, 10495.0, 10504.0, 10513.0, 10523.0, 10533.0, 10542.0, 10550.0, 10556.0, 10559.0, 10560.0, 10559.0, 10555.0, 10550.0, 10543.0, 10533.0, 10522.0, 10514.0, 10505.0, 10496.0, 10490.0, 10486.0, 10482.0, 10481.0, 10482.0, 10486.0, 10491.0, 10497.0, 10506.0, 10516.0, 10524.0, 10534.0, 10544.0, 10552.0, 10558.0, 10564.0, 10569.0, 10573.0, 10576.0, 10578.0, 10581.0, 10582.0] Plots: The code for the mapping function and interpolation is: xnew=[] ynew=ypoints for c3,i in enumerate(xpoints): if np.isfinite(np.log(i*pow(2,c3))): xnew.append(np.log(i*pow(2,c3))) else: if c==0: xnew.append(np.random.random_sample()) else: xnew.append(xnew[c3-1]+np.random.random_sample()) xnew=np.asarray(xnew) ynew=np.asarray(ynew) constant1=10.0 nknots=len(xnew)/constant1 idx_knots = (np.arange(1,len(xnew)-1,(len(xnew)-2)/np.double(nknots))).astype('int') knots = [xnew[i] for i in idx_knots] knots = np.asarray(knots) int_range=np.linspace(min(xnew),max(xnew),len(xnew)) tck = interpolate.splrep(xnew,ynew,k=3,task=-1,t=knots) y1= interpolate.splev(int_range,tck,der=0) The code is throwing an error at the function interpolate.splrep() for some set of points like the above one. The error is: File "/home/neeraj/Desktop/koustav/res/BOS5/fit_spline3.py", line 58, in save_spline_f tck = interpolate.splrep(xnew,ynew,k=3,task=-1,t=knots) File "/usr/lib/python2.7/dist-packages/scipy/interpolate/fitpack.py", line 465, in splrep raise _iermessier(_iermess[ier][0]) ValueError: Error on input data But for other set of points it works fine. For example for the following set of points. xpoints=[1629.0, 1629.0, 1629.0, 1629.0, 1629.0, 1629.0, 1629.0, 1629.0, 1629.0, 1629.0, 1629.0, 1629.0, 1629.0, 1629.0, 1629.0, 1629.0, 1630.0, 1630.0, 1630.0, 1631.0, 1631.0, 1631.0, 1631.0, 1630.0, 1629.0, 1629.0, 1629.0, 1628.0, 1627.0, 1627.0, 1625.0, 1624.0, 1624.0, 1623.0, 1620.0, 1618.0, 1617.0, 1616.0, 1615.0, 1614.0, 1614.0, 1612.0, 1612.0, 1612.0, 1611.0, 1610.0, 1609.0, 1608.0, 1607.0, 1607.0, 1603.0, 1602.0, 1602.0, 1601.0, 1601.0, 1600.0, 1599.0, 1598.0] ypoints=[10570.0, 10572.0, 10572.0, 10573.0, 10572.0, 10572.0, 10571.0, 10570.0, 10569.0, 10565.0, 10564.0, 10563.0, 10562.0, 10560.0, 10558.0, 10556.0, 10554.0, 10551.0, 10548.0, 10547.0, 10544.0, 10542.0, 10541.0, 10538.0, 10534.0, 10532.0, 10531.0, 10528.0, 10525.0, 10522.0, 10519.0, 10517.0, 10516.0, 10512.0, 10509.0, 10509.0, 10507.0, 10504.0, 10502.0, 10500.0, 10501.0, 10499.0, 10498.0, 10496.0, 10491.0, 10492.0, 10488.0, 10488.0, 10488.0, 10486.0, 10486.0, 10485.0, 10485.0, 10486.0, 10483.0, 10483.0, 10482.0, 10480.0] Plots: Can anybody suggest what's happening ?? Thanks in advance......

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  • DOM memory issue with IE8 (inserting lots of JSON data)

    - by okie.floyd
    i am developing a small web-utility that displays some data from some database tables. i have the utility running fine on FF, Safari, Chrome..., but the memory management on IE8 is horrendous. the largest JSON request I do will return information to create around 5,000 or so rows in a table within the browser (3 columns in the table). i'm using jquery to get the data (via getJSON). to remove the old/existing table, i'm just doing a $('#my_table_tbody').empty(). to add the new info to the table, within the getJSON callback, i am just appending each table row that i am creating to a variable, and then once i have them all, i am using $('#my_table_tbody').append(myVar) to add it to the existing tbody. i don't add the table rows as they are created because that seems to be a lot slower than just adding them all at once. does anyone have any recommendation on what someone should do who is trying to add thousands of rows of data to the DOM? i would like to stay away from pagination, but i'm wondering if i don't have a choice. Update 1 So here is the code I was trying after the innerHTML suggestion: /* Assuming a div called 'main_area' holds the table */ document.getElementById('main_area').innerHTML = ''; $.getJSON("my_server", {my: JSON, args: are, in: here}, function(j) { var mylength = j.length; var k =0; var tmpText = ''; tmpText += /* Add the table, thead stuff, and tbody tags here */; for (k = mylength - 1; k = 0; k--) { /* stack overflow wont let me type greater than & less than signs here, so just assume that they are there. */ tmpText += 'tr class="' + j[k].row_class . '" td class="col1_class" ' + j[k].col1 + ' /td td class="col2_class" ' + j[k].col2 + ' /td td class="col3_class" ' + j[k].col3 + ' /td /tr'; } document.getElementById('main_area').innerHTML = tmpText; } That is the gist of it. I've also tried using just a $.get request, and having the server send the formatted HTML, and just setting that in the innerHTML (i.e. document.getElementById('main_area').innerHTML = j;). thanks for all of the replies. i'm floored with the fact that you all are willing to help.

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  • Issue accessing remote Infinispan mbeans

    - by user1960172
    I am able to access the Mbeans by local Jconsole but not able to access the MBEANS from a remote Host. My COnfiguration: <?xml version='1.0' encoding='UTF-8'?> <server xmlns="urn:jboss:domain:1.4"> <extensions> <extension module="org.infinispan.server.endpoint"/> <extension module="org.jboss.as.clustering.infinispan"/> <extension module="org.jboss.as.clustering.jgroups"/> <extension module="org.jboss.as.connector"/> <extension module="org.jboss.as.jdr"/> <extension module="org.jboss.as.jmx"/> <extension module="org.jboss.as.logging"/> <extension module="org.jboss.as.modcluster"/> <extension module="org.jboss.as.naming"/> <extension module="org.jboss.as.remoting"/> <extension module="org.jboss.as.security"/> <extension module="org.jboss.as.threads"/> <extension module="org.jboss.as.transactions"/> <extension module="org.jboss.as.web"/> </extensions> <management> <security-realms> <security-realm name="ManagementRealm"> <authentication> <local default-user="$local"/> <properties path="mgmt-users.properties" relative-to="jboss.server.config.dir"/> </authentication> </security-realm> <security-realm name="ApplicationRealm"> <authentication> <local default-user="$local" allowed-users="*"/> <properties path="application-users.properties" relative-to="jboss.server.config.dir"/> </authentication> </security-realm> </security-realms> <management-interfaces> <native-interface security-realm="ManagementRealm"> <socket-binding native="management-native"/> </native-interface> <http-interface security-realm="ManagementRealm"> <socket-binding http="management-http"/> </http-interface> </management-interfaces> </management> <profile> <subsystem xmlns="urn:jboss:domain:logging:1.2"> <console-handler name="CONSOLE"> <level name="INFO"/> <formatter> <pattern-formatter pattern="%K{level}%d{HH:mm:ss,SSS} %-5p [%c] (%t) %s%E%n"/> </formatter> </console-handler> <periodic-rotating-file-handler name="FILE" autoflush="true"> <formatter> <pattern-formatter pattern="%d{HH:mm:ss,SSS} %-5p [%c] (%t) %s%E%n"/> </formatter> <file relative-to="jboss.server.log.dir" path="server.log"/> <suffix value=".yyyy-MM-dd"/> <append value="true"/> </periodic-rotating-file-handler> <logger category="com.arjuna"> <level name="WARN"/> </logger> <logger category="org.apache.tomcat.util.modeler"> <level name="WARN"/> </logger> <logger category="org.jboss.as.config"> <level name="DEBUG"/> </logger> <logger category="sun.rmi"> <level name="WARN"/> </logger> <logger category="jacorb"> <level name="WARN"/> </logger> <logger category="jacorb.config"> <level name="ERROR"/> </logger> <root-logger> <level name="INFO"/> <handlers> <handler name="CONSOLE"/> <handler name="FILE"/> </handlers> </root-logger> </subsystem> <subsystem xmlns="urn:infinispan:server:endpoint:6.0"> <hotrod-connector socket-binding="hotrod" cache-container="clustered"> <topology-state-transfer lazy-retrieval="false" lock-timeout="1000" replication-timeout="5000"/> </hotrod-connector> <memcached-connector socket-binding="memcached" cache-container="clustered"/> <!--<rest-connector virtual-server="default-host" cache-container="clustered" security-domain="other" auth-method="BASIC"/> --> <rest-connector virtual-server="default-host" cache-container="clustered" /> <websocket-connector socket-binding="websocket" cache-container="clustered"/> </subsystem> <subsystem xmlns="urn:jboss:domain:datasources:1.1"> <datasources/> </subsystem> <subsystem xmlns="urn:infinispan:server:core:5.3" default-cache-container="clustered"> <cache-container name="clustered" default-cache="default"> <transport executor="infinispan-transport" lock-timeout="60000"/> <distributed-cache name="default" mode="SYNC" segments="20" owners="2" remote-timeout="30000" start="EAGER"> <locking isolation="READ_COMMITTED" acquire-timeout="30000" concurrency-level="1000" striping="false"/> <transaction mode="NONE"/> </distributed-cache> <distributed-cache name="memcachedCache" mode="SYNC" segments="20" owners="2" remote-timeout="30000" start="EAGER"> <locking isolation="READ_COMMITTED" acquire-timeout="30000" concurrency-level="1000" striping="false"/> <transaction mode="NONE"/> </distributed-cache> <distributed-cache name="namedCache" mode="SYNC" start="EAGER"/> </cache-container> <cache-container name="security"/> </subsystem> <subsystem xmlns="urn:jboss:domain:jca:1.1"> <archive-validation enabled="true" fail-on-error="true" fail-on-warn="false"/> <bean-validation enabled="true"/> <default-workmanager> <short-running-threads> <core-threads count="50"/> <queue-length count="50"/> <max-threads count="50"/> <keepalive-time time="10" unit="seconds"/> </short-running-threads> <long-running-threads> <core-threads count="50"/> <queue-length count="50"/> <max-threads count="50"/> <keepalive-time time="10" unit="seconds"/> </long-running-threads> </default-workmanager> <cached-connection-manager/> </subsystem> <subsystem xmlns="urn:jboss:domain:jdr:1.0"/> <subsystem xmlns="urn:jboss:domain:jgroups:1.2" default-stack="${jboss.default.jgroups.stack:udp}"> <stack name="udp"> <transport type="UDP" socket-binding="jgroups-udp"/> <protocol type="PING"/> <protocol type="MERGE2"/> <protocol type="FD_SOCK" socket-binding="jgroups-udp-fd"/> <protocol type="FD_ALL"/> <protocol type="pbcast.NAKACK"/> <protocol type="UNICAST2"/> <protocol type="pbcast.STABLE"/> <protocol type="pbcast.GMS"/> <protocol type="UFC"/> <protocol type="MFC"/> <protocol type="FRAG2"/> <protocol type="RSVP"/> </stack> <stack name="tcp"> <transport type="TCP" socket-binding="jgroups-tcp"/> <!--<protocol type="MPING" socket-binding="jgroups-mping"/>--> <protocol type="TCPPING"> <property name="initial_hosts">10.32.50.53[7600],10.32.50.64[7600]</property> </protocol> <protocol type="MERGE2"/> <protocol type="FD_SOCK" socket-binding="jgroups-tcp-fd"/> <protocol type="FD"/> <protocol type="VERIFY_SUSPECT"/> <protocol type="pbcast.NAKACK"> <property name="use_mcast_xmit">false</property> </protocol> <protocol type="UNICAST2"/> <protocol type="pbcast.STABLE"/> <protocol type="pbcast.GMS"/> <protocol type="UFC"/> <protocol type="MFC"/> <protocol type="FRAG2"/> <protocol type="RSVP"/> </stack> </subsystem> <subsystem xmlns="urn:jboss:domain:jmx:1.1"> <show-model value="true"/> <remoting-connector use-management-endpoint="false"/> </subsystem> <subsystem xmlns="urn:jboss:domain:modcluster:1.1"> <mod-cluster-config advertise-socket="modcluster" connector="ajp" excluded-contexts="console"> <dynamic-load-provider> <load-metric type="busyness"/> </dynamic-load-provider> </mod-cluster-config> </subsystem> <subsystem xmlns="urn:jboss:domain:naming:1.2"/> <subsystem xmlns="urn:jboss:domain:remoting:1.1"> <connector name="remoting-connector" socket-binding="remoting" security-realm="ApplicationRealm"/> </subsystem> <subsystem xmlns="urn:jboss:domain:security:1.2"> <security-domains> <security-domain name="other" cache-type="infinispan"> <authentication> <login-module code="Remoting" flag="optional"> <module-option name="password-stacking" value="useFirstPass"/> </login-module> <login-module code="RealmUsersRoles" flag="required"> <module-option name="usersProperties" value="${jboss.server.config.dir}/application-users.properties"/> <module-option name="rolesProperties" value="${jboss.server.config.dir}/application-roles.properties"/> <module-option name="realm" value="ApplicationRealm"/> <module-option name="password-stacking" value="useFirstPass"/> </login-module> </authentication> </security-domain> <security-domain name="jboss-web-policy" cache-type="infinispan"> <authorization> <policy-module code="Delegating" flag="required"/> </authorization> </security-domain> </security-domains> </subsystem> <subsystem xmlns="urn:jboss:domain:threads:1.1"> <thread-factory name="infinispan-factory" group-name="infinispan" priority="5"/> <unbounded-queue-thread-pool name="infinispan-transport"> <max-threads count="25"/> <keepalive-time time="0" unit="milliseconds"/> <thread-factory name="infinispan-factory"/> </unbounded-queue-thread-pool> </subsystem> <subsystem xmlns="urn:jboss:domain:transactions:1.2"> <core-environment> <process-id> <uuid/> </process-id> </core-environment> <recovery-environment socket-binding="txn-recovery-environment" status-socket-binding="txn-status-manager"/> <coordinator-environment default-timeout="300"/> </subsystem> <subsystem xmlns="urn:jboss:domain:web:1.1" default-virtual-server="default-host" native="false"> <connector name="http" protocol="HTTP/1.1" scheme="http" socket-binding="http"/> <connector name="ajp" protocol="AJP/1.3" scheme="http" socket-binding="ajp"/> <virtual-server name="default-host" enable-welcome-root="false"> <alias name="localhost"/> <alias name="example.com"/> </virtual-server> </subsystem> </profile> <interfaces> <interface name="management"> <inet-address value="${jboss.bind.address.management:10.32.222.111}"/> </interface> <interface name="public"> <inet-address value="${jboss.bind.address:10.32.222.111}"/> </interface> </interfaces> <socket-binding-group name="standard-sockets" default-interface="public" port-offset="${jboss.socket.binding.port-offset:0}"> <socket-binding name="management-native" interface="management" port="${jboss.management.native.port:9999}"/> <socket-binding name="management-http" interface="management" port="${jboss.management.http.port:9990}"/> <socket-binding name="management-https" interface="management" port="${jboss.management.https.port:9443}"/> <socket-binding name="ajp" port="8089"/> <socket-binding name="hotrod" port="11222"/> <socket-binding name="http" port="8080"/> <socket-binding name="https" port="8443"/> <socket-binding name="jgroups-mping" port="0" multicast-address="${jboss.default.multicast.address:234.99.54.14}" multicast-port="45700"/> <socket-binding name="jgroups-tcp" port="7600"/> <socket-binding name="jgroups-tcp-fd" port="57600"/> <socket-binding name="jgroups-udp" port="55200" multicast-address="${jboss.default.multicast.address:234.99.54.14}" multicast-port="45688"/> <socket-binding name="jgroups-udp-fd" port="54200"/> <socket-binding name="memcached" port="11211"/> <socket-binding name="modcluster" port="0" multicast-address="224.0.1.115" multicast-port="23364"/> <socket-binding name="remoting" port="4447"/> <socket-binding name="txn-recovery-environment" port="4712"/> <socket-binding name="txn-status-manager" port="4713"/> <socket-binding name="websocket" port="8181"/> </socket-binding-group> </server> Remote Process: service:jmx:remoting-jmx://10.32.222.111:4447 I added user to both management and application realm admin=2a0923285184943425d1f53ddd58ec7a test=2b1be81e1da41d4ea647bd82fc8c2bc9 But when i try to connect its says's: Connection failed: Retry When i use Remote process as:10.32.222.111:4447 on the sever it prompts a warning : 16:29:48,084 ERROR [org.jboss.remoting.remote.connection] (Remoting "djd7w4r1" read-1) JBREM000200: Remote connection failed: java.io.IOException: Received an invali d message length of -2140864253 Also disabled Remote authentication: -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.port=12345 Still not able to connect. Any help will be highly appreciated . Thanks

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  • Large number of UPDATE queries slowing down page

    - by Bryan Lewis
    I am reading and validating large fixed-width text files (range from 10-50K lines) that are submitted via our ASP.net website (coded in VB.Net). I do an initial scan of the file to check for basic issues (line length, etc). Then I import each row into a MS SQL table. Each DB rows basically consists of a record_ID (Primary, auto-incrementing) and about 50 varchar fields. After the insert is done, I run a validation function on the file that checks each field in each row based on a bunch of criteria (trimmed length, isnumeric, range checks, etc). If it finds an error in any field, it inserts a record into the Errors table, which has an error_ID, the record_ID and an error message. In addition, if the field fails in a particular way, I have to do a "reset" on that field. A reset might consist of blanking the entire field, or simply replacing the value with another value (e.g. replacing the string with a new one that has all illegals chars taken out). I have a 5,000 line test file. The upload, initial check, and import takes about 5-6 seconds. The detailed error check and insert into the Errors table takes about 5-8 seconds (this file has about 1200 errors in it). However, the "resets" part takes about 40-45 seconds for 750 fields that need to be reset. When I comment out the resets function (returning immediately without actually calling the UPDATE stored proc), the process is very fast. With the resets turned on, the pages take 50 seconds to return. My UPDATE stored proc is using some recommended code from http://sommarskog.se/dynamic_sql.html, whereby it uses CASE instead of dynamic SQL: UPDATE dbo.Records SET dbo.Records.file_ID = CASE @field_name WHEN 'file_ID' THEN @field_value ELSE file_ID END, . . (all 50 varchar field CASE statements here) . WHERE dbo.Records.record_ID = @record_ID Is there any way I can help my performance here. Can I somehow group all of these UPDATE calls into a single transaction? Should I be reworking the UPDATE query somehow? Or is it just sheer quantity of 750+ UPDATEs and things are just slow (it's a quad proc server with 8GB ram). Any suggestions appreciated.

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  • Which work process in my company should I Improve first?

    - by shoren
    I've just started to work in a new place, and I see several things they do that I find really terrible, and I want to know if they are indeed so wrong, or I am just too strict. Please let me know if my criticism is in place, and your opinion on which problem is the worst and should be fixed first. The developement is all in Java. 1) Not using svnignore. This means svn stat can't be used, and developers forget to add files and break the build. 2) Generated files go to same folders as committed files. Can't use simple maven clean, have to find them one by one. Maven clean doesn't remove all of them. 3) Not fixing IDE analyze warnings. Analyze code returns about 5,000 warning, of many different kinds. 4) Not following conventions: spring beans names sometimes start with uppercase and sometimes not, ant properties sometimes with underline and sometimes with dots delimiter, etc. 5) Incremental build takes 6 minutes, even when nothing is changed. 6) Developers only use remote debug, and don't know how to run the Tomcat server internally from the IDE. 7) Developers always restart the server after every compilation, instead of dynamically reloading the class and saving the server's state. It takes them at least 10 minutes to start checking any change in the code. 8) Developers only compile from command line. When there are compilation errors, they manually open the file and go the the problematic line. 9) A complete mess in project dependencies. Over 200 open sources are depended on, and no one knows what is indeed needed and why. They do know that not all dependencies are necessary. 10) Mixing Maven and Ant in a way that disables the benefits of both. In one case, even dependency checks are not done by Maven. 11) Not using generics properly. 12) Developers don't use Subversion integration with IDE (Eclipse, Intellij Idea). What do you think? Where should I start? Is any of the things I mentioned not really a problem?

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  • 6 Facts About GlassFish Announcement

    - by Bruno.Borges
    Since Oracle announced the end of commercial support for future Oracle GlassFish Server versions, the Java EE world has started wondering what will happen to GlassFish Server Open Source Edition. Unfortunately, there's a lot of misleading information going around. So let me clarify some things with facts, not FUD. Fact #1 - GlassFish Open Source Edition is not dead GlassFish Server Open Source Edition will remain the reference implementation of Java EE. The current trunk is where an implementation for Java EE 8 will flourish, and this will become the future GlassFish 5.0. Calling "GlassFish is dead" does no good to the Java EE ecosystem. The GlassFish Community will remain strong towards the future of Java EE. Without revenue-focused mind, this might actually help the GlassFish community to shape the next version, and set free from any ties with commercial decisions. Fact #2 - OGS support is not over As I said before, GlassFish Server Open Source Edition will continue. Main change is that there will be no more future commercial releases of Oracle GlassFish Server. New and existing OGS 2.1.x and 3.1.x commercial customers will continue to be supported according to the Oracle Lifetime Support Policy. In parallel, I believe there's no other company in the Java EE business that offers commercial support to more than one build of a Java EE application server. This new direction can actually help customers and partners, simplifying decision through commercial negotiations. Fact #3 - WebLogic is not always more expensive than OGS Oracle GlassFish Server ("OGS") is a build of GlassFish Server Open Source Edition bundled with a set of commercial features called GlassFish Server Control and license bundles such as Java SE Support. OGS has at the moment of this writing the pricelist of U$ 5,000 / processor. One information that some bloggers are mentioning is that WebLogic is more expensive than this. Fact 3.1: it is not necessarily the case. The initial edition of WebLogic is called "Standard Edition" and falls into a policy where some “Standard Edition” products are licensed on a per socket basis. As of current pricelist, US$ 10,000 / socket. If you do the math, you will realize that WebLogic SE can actually be significantly more cost effective than OGS, and a customer can save money if running on a CPU with 4 cores or more for example. Quote from the price list: “When licensing Oracle programs with Standard Edition One or Standard Edition in the product name (with the exception of Java SE Support, Java SE Advanced, and Java SE Suite), a processor is counted equivalent to an occupied socket; however, in the case of multi-chip modules, each chip in the multi-chip module is counted as one occupied socket.” For more details speak to your Oracle sales representative - this is clearly at list price and every customer typically has a relationship with Oracle (like they do with other vendors) and different contractual details may apply. And although OGS has always been production-ready for Java EE applications, it is no secret that WebLogic has always been more enterprise, mission critical application server than OGS since BEA. Different editions of WLS provide features and upgrade irons like the WebLogic Diagnostic Framework, Work Managers, Side by Side Deployment, ADF and TopLink bundled license, Web Tier (Oracle HTTP Server) bundled licensed, Fusion Middleware stack support, Oracle DB integration features, Oracle RAC features (such as GridLink), Coherence Management capabilities, Advanced HA (Whole Service Migration and Server Migration), Java Mission Control, Flight Recorder, Oracle JDK support, etc. Fact #4 - There’s no major vendor supporting community builds of Java EE app servers There are no major vendors providing support for community builds of any Open Source application server. For example, IBM used to provide community support for builds of Apache Geronimo, not anymore. Red Hat does not commercially support builds of WildFly and if I remember correctly, never supported community builds of former JBoss AS. Oracle has never commercially supported GlassFish Server Open Source Edition builds. Tomitribe appears to be the exception to the rule, offering commercial support for Apache TomEE. Fact #5 - WebLogic and GlassFish share several Java EE implementations It has been no secret that although GlassFish and WebLogic share some JSR implementations (as stated in the The Aquarium announcement: JPA, JSF, WebSockets, CDI, Bean Validation, JAX-WS, JAXB, and WS-AT) and WebLogic understands GlassFish deployment descriptors, they are not from the same codebase. Fact #6 - WebLogic is not for GlassFish what JBoss EAP is for WildFly WebLogic is closed-source offering. It is commercialized through a license-based plus support fee model. OGS although from an Open Source code, has had the same commercial model as WebLogic. Still, one cannot compare GlassFish/WebLogic to WildFly/JBoss EAP. It is simply not the same case, since Oracle has had two different products from different codebases. The comparison should be limited to GlassFish Open Source / Oracle GlassFish Server versus WildFly / JBoss EAP. But the message now is much clear: Oracle will commercially support only the proprietary product WebLogic, and invest on GlassFish Server Open Source Edition as the reference implementation for the Java EE platform and future Java EE 8, as a developer-friendly community distribution, and encourages community participation through Adopt a JSR and contributions to GlassFish. In comparison Oracle's decision has pretty much the same goal as to when IBM killed support for Websphere Community Edition; and to when Red Hat decided to change the name of JBoss Community Edition to WildFly, simplifying and clarifying marketing message and leaving the commercial field wide open to JBoss EAP only. Oracle can now, as any other vendor has already been doing, focus on only one commercial offer. Some users are saying they will now move to WildFly, but it is important to note that Red Hat does not offer commercial support for WildFly builds. Although the future JBoss EAP versions will come from the same codebase as WildFly, the builds will definitely not be the same, nor sharing 100% of their functionalities and bug fixes. This means there will be no company running a WildFly build in production with support from Red Hat. This discussion has also raised an important and interesting information: Oracle offers a free for developers OTN License for WebLogic. For other environments this is different, but please note this is the same policy Red Hat applies to JBoss EAP, as stated in their download page and terms. Oracle had the same policy for OGS. TL;DR; GlassFish Server Open Source Edition isn’t dead. Current and new OGS 2.x/3.x customers will continue to have support (respecting LSP). WebLogic is not necessarily more expensive than OGS. Oracle will focus on one commercially supported Java EE application server, like other vendors also limit themselves to support one build/product only. Community builds are hardly supported. Commercially supported builds of Open Source products are not exactly from the same codebase as community builds. What's next for GlassFish and the Java EE community? There are conversations in place to tackle some of the community desires, most of them stated by Markus Eisele in his blog post. We will keep you posted.

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  • Right-Time Retail Part 1

    - by David Dorf
    This is the first in a three-part series. Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} Right-Time Revolution Technology enables some amazing feats in retail. I can order flowers for my wife while flying 30,000 feet in the air. I can order my groceries in the subway and have them delivered later that day. I can even see how clothes look on me without setting foot in a store. Who knew that a TV, diamond necklace, or even a car would someday be as easy to purchase as a candy bar? Can technology make a mattress an impulse item? Wake-up and your back is hurting, so you rollover and grab your iPad, then a new mattress is delivered the next day. Behind the scenes the many processes are being choreographed to make the sale happen. This includes moving data between systems with the least amount for friction, which in some cases is near real-time. But real-time isn’t appropriate for all the integrations. Think about what a completely real-time retailer would look like. A consumer grabs toothpaste off the shelf, and all systems are immediately notified so that the backroom clerk comes running out and pushes the consumer aside so he can replace the toothpaste on the shelf. Such a system is not only cost prohibitive, but it’s also very inefficient and ineffectual. Retailers must balance the realities of people, processes, and systems to find the right speed of execution. That’ what “right-time retail” means. Retailers used to sell during the day and count the money and restock at night, but global expansion and the Web have complicated that simplistic viewpoint. Our 24hr society demands not only access but also speed, which constantly pushes the boundaries of our IT systems. In the last twenty years, there have been three major technology advancements that have moved us closer to real-time systems. Networking is the first technology that drove the real-time trend. As systems became connected, it became easier to move data between them. In retail we no longer had to mail the daily business report back to corporate each day as the dial-up modem could transfer the data. That was soon replaced with trickle-polling, when sale transactions were occasionally sent from stores to corporate throughout the day, often through VSAT. Then we got terrestrial networks like DSL and Ethernet that allowed the constant stream of data between stores and corporate. When corporate could see the sales transactions coming from stores, it could better plan for replenishment and promotions. That drove the need for speed into the supply chain and merchandising, but for many years those systems were stymied by the huge volumes of data. Nordstrom has 150 million SKU/Store combinations when planning (RPAS); The Gap generates 110 million price changes during end-of-season (RPM); Argos does 1.78 billion calculations executed each day for replenishment planning (AIP). These areas are now being alleviated by the second technology, storage. The typical laptop disk drive runs at 5,400rpm with PCs stepping up to 7,200rpm and servers hitting 15,000rpm. But the platters can only spin so fast, so to squeeze more performance we’ve had to rely on things like disk striping. Then solid state drives (SSDs) were introduced and prices continue to drop. (Augmenting your harddrive with a SSD is the single best PC upgrade these days.) RAM continues to be expensive, but compressing data in memory has allowed more efficient use. So a few years back, Oracle decided to build a box that incorporated all these advancements to move us closer to real-time. This family of products, often categorized as engineered systems, combines the hardware and software so that they work together to provide better performance. How much better? If Exadata powered a 747, you’d go from New York to Paris in 42 minutes, and it would carry 5,000 passengers. If Exadata powered baseball, games would last only 18 minutes and Boston’s Fenway would hold 370,000 fans. The Exa-family enables processing more data in less time. So with faster networks and storage, that brings us to the third and final ingredient. If we continue to process data in traditional ways, we won’t be able to take advantage of the faster networks and storage. Enter what Harvard calls “The Sexiest Job of the 21st Century” – the data scientist. New technologies like the Hadoop-powered Oracle Big Data Appliance, Oracle Advanced Analytics, and Oracle Endeca Information Discovery change the way in which we organize data. These technologies allow us to extract actionable information from raw data at incredible speeds, often ad-hoc. So the foundation to support the real-time enterprise exists, but how does a retailer begin to take advantage? The most visible way is through real-time marketing, but I’ll save that for part 3 and instead begin with improved integrations for the assets you already have in part 2.

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  • Imperative vs. LINQ Performance on WP7

    - by Bil Simser
    Jesse Liberty had a nice post presenting the concepts around imperative, LINQ and fluent programming to populate a listbox. Check out the post as it’s a great example of some foundational things every .NET programmer should know. I was more interested in what the IL code that would be generated from imperative vs. LINQ was like and what the performance numbers are and how they differ. The code at the instruction level is interesting but not surprising. The imperative example with it’s creating lists and loops weighs in at about 60 instructions. .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } 1: .method private hidebysig instance void ImperativeMethod() cil managed 2: { 3: .maxstack 3 4: .locals init ( 5: [0] class [mscorlib]System.Collections.Generic.IEnumerable`1<int32> someData, 6: [1] class [mscorlib]System.Collections.Generic.List`1<int32> inLoop, 7: [2] int32 n, 8: [3] class [mscorlib]System.Collections.Generic.IEnumerator`1<int32> CS$5$0000, 9: [4] bool CS$4$0001) 10: L_0000: nop 11: L_0001: ldc.i4.1 12: L_0002: ldc.i4.s 50 13: L_0004: call class [mscorlib]System.Collections.Generic.IEnumerable`1<int32> [System.Core]System.Linq.Enumerable::Range(int32, int32) 14: L_0009: stloc.0 15: L_000a: newobj instance void [mscorlib]System.Collections.Generic.List`1<int32>::.ctor() 16: L_000f: stloc.1 17: L_0010: nop 18: L_0011: ldloc.0 19: L_0012: callvirt instance class [mscorlib]System.Collections.Generic.IEnumerator`1<!0> [mscorlib]System.Collections.Generic.IEnumerable`1<int32>::GetEnumerator() 20: L_0017: stloc.3 21: L_0018: br.s L_003a 22: L_001a: ldloc.3 23: L_001b: callvirt instance !0 [mscorlib]System.Collections.Generic.IEnumerator`1<int32>::get_Current() 24: L_0020: stloc.2 25: L_0021: nop 26: L_0022: ldloc.2 27: L_0023: ldc.i4.5 28: L_0024: cgt 29: L_0026: ldc.i4.0 30: L_0027: ceq 31: L_0029: stloc.s CS$4$0001 32: L_002b: ldloc.s CS$4$0001 33: L_002d: brtrue.s L_0039 34: L_002f: ldloc.1 35: L_0030: ldloc.2 36: L_0031: ldloc.2 37: L_0032: mul 38: L_0033: callvirt instance void [mscorlib]System.Collections.Generic.List`1<int32>::Add(!0) 39: L_0038: nop 40: L_0039: nop 41: L_003a: ldloc.3 42: L_003b: callvirt instance bool [mscorlib]System.Collections.IEnumerator::MoveNext() 43: L_0040: stloc.s CS$4$0001 44: L_0042: ldloc.s CS$4$0001 45: L_0044: brtrue.s L_001a 46: L_0046: leave.s L_005a 47: L_0048: ldloc.3 48: L_0049: ldnull 49: L_004a: ceq 50: L_004c: stloc.s CS$4$0001 51: L_004e: ldloc.s CS$4$0001 52: L_0050: brtrue.s L_0059 53: L_0052: ldloc.3 54: L_0053: callvirt instance void [mscorlib]System.IDisposable::Dispose() 55: L_0058: nop 56: L_0059: endfinally 57: L_005a: nop 58: L_005b: ldarg.0 59: L_005c: ldfld class [System.Windows]System.Windows.Controls.ListBox PerfTest.MainPage::LB1 60: L_0061: ldloc.1 61: L_0062: callvirt instance void [System.Windows]System.Windows.Controls.ItemsControl::set_ItemsSource(class [mscorlib]System.Collections.IEnumerable) 62: L_0067: nop 63: L_0068: ret 64: .try L_0018 to L_0048 finally handler L_0048 to L_005a 65: } 66:   67: Compare that to the IL generated for the LINQ version which has about half of the instructions and just gets the job done, no fluff. .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } 1: .method private hidebysig instance void LINQMethod() cil managed 2: { 3: .maxstack 4 4: .locals init ( 5: [0] class [mscorlib]System.Collections.Generic.IEnumerable`1<int32> someData, 6: [1] class [mscorlib]System.Collections.Generic.IEnumerable`1<int32> queryResult) 7: L_0000: nop 8: L_0001: ldc.i4.1 9: L_0002: ldc.i4.s 50 10: L_0004: call class [mscorlib]System.Collections.Generic.IEnumerable`1<int32> [System.Core]System.Linq.Enumerable::Range(int32, int32) 11: L_0009: stloc.0 12: L_000a: ldloc.0 13: L_000b: ldsfld class [System.Core]System.Func`2<int32, bool> PerfTest.MainPage::CS$<>9__CachedAnonymousMethodDelegate6 14: L_0010: brtrue.s L_0025 15: L_0012: ldnull 16: L_0013: ldftn bool PerfTest.MainPage::<LINQProgramming>b__4(int32) 17: L_0019: newobj instance void [System.Core]System.Func`2<int32, bool>::.ctor(object, native int) 18: L_001e: stsfld class [System.Core]System.Func`2<int32, bool> PerfTest.MainPage::CS$<>9__CachedAnonymousMethodDelegate6 19: L_0023: br.s L_0025 20: L_0025: ldsfld class [System.Core]System.Func`2<int32, bool> PerfTest.MainPage::CS$<>9__CachedAnonymousMethodDelegate6 21: L_002a: call class [mscorlib]System.Collections.Generic.IEnumerable`1<!!0> [System.Core]System.Linq.Enumerable::Where<int32>(class [mscorlib]System.Collections.Generic.IEnumerable`1<!!0>, class [System.Core]System.Func`2<!!0, bool>) 22: L_002f: ldsfld class [System.Core]System.Func`2<int32, int32> PerfTest.MainPage::CS$<>9__CachedAnonymousMethodDelegate7 23: L_0034: brtrue.s L_0049 24: L_0036: ldnull 25: L_0037: ldftn int32 PerfTest.MainPage::<LINQProgramming>b__5(int32) 26: L_003d: newobj instance void [System.Core]System.Func`2<int32, int32>::.ctor(object, native int) 27: L_0042: stsfld class [System.Core]System.Func`2<int32, int32> PerfTest.MainPage::CS$<>9__CachedAnonymousMethodDelegate7 28: L_0047: br.s L_0049 29: L_0049: ldsfld class [System.Core]System.Func`2<int32, int32> PerfTest.MainPage::CS$<>9__CachedAnonymousMethodDelegate7 30: L_004e: call class [mscorlib]System.Collections.Generic.IEnumerable`1<!!1> [System.Core]System.Linq.Enumerable::Select<int32, int32>(class [mscorlib]System.Collections.Generic.IEnumerable`1<!!0>, class [System.Core]System.Func`2<!!0, !!1>) 31: L_0053: stloc.1 32: L_0054: ldarg.0 33: L_0055: ldfld class [System.Windows]System.Windows.Controls.ListBox PerfTest.MainPage::LB2 34: L_005a: ldloc.1 35: L_005b: callvirt instance void [System.Windows]System.Windows.Controls.ItemsControl::set_ItemsSource(class [mscorlib]System.Collections.IEnumerable) 36: L_0060: nop 37: L_0061: ret 38: } Again, not surprising here but a good indicator that you should consider using LINQ where possible. In fact if you have ReSharper installed you’ll see a squiggly (technical term) in the imperative code that says “Hey Dude, I can convert this to LINQ if you want to be c00L!” (or something like that, it’s the 2010 geek version of Clippy). What about the fluent version? As Jon correctly pointed out in the comments, when you compare the IL for the LINQ code and the IL for the fluent code it’s the same. LINQ and the fluent interface are just syntactical sugar so you decide what you’re most comfortable with. At the end of the day they’re both the same. Now onto the numbers. Again I expected the imperative version to be better performing than the LINQ version (before I saw the IL that was generated). Call it womanly instinct. A gut feel. Whatever. Some of the numbers are interesting though. For Jesse’s example of 50 items, the numbers were interesting. The imperative sample clocked in at 7ms while the LINQ version completed in 4. As the number of items went up, the elapsed time didn’t necessarily climb exponentially. At 500 items they were pretty much the same and the results were similar up to about 50,000 items. After that I tried 500,000 items where the gap widened but not by much (2.2 seconds for imperative, 2.3 for LINQ). It wasn’t until I tried 5,000,000 items where things were noticeable. Imperative filled the list in 20 seconds while LINQ took 8 seconds longer (although personally I wouldn’t suggest you put 5 million items in a list unless you want your users showing up at your door with torches and pitchforks). Here’s the table with the full results. Method/Items 50 500 5,000 50,000 500,000 5,000,000 Imperative 7ms 7ms 38ms 223ms 2230ms 20974ms LINQ/Fluent 4ms 6ms 41ms 240ms 2310ms 28731ms Like I said, at the end of the day it’s not a huge difference and you really don’t want your users waiting around for 30 seconds on a mobile device filling lists. In fact if Windows Phone 7 detects you’re taking more than 10 seconds to do any one thing, it considers the app hung and shuts it down. The results here are for Windows Phone 7 but frankly they're the same for desktop and web apps so feel free to apply it generally. From a programming perspective, choose what you like. Some LINQ statements can get pretty hairy so I usually fall back with my simple mind and write it imperatively. If you really want to impress your friends, write it old school then let ReSharper do the hard work for! Happy programming!

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  • Glassfish alive or dead? WebLogic SE cost is less than Glassfish!

    - by JuergenKress
    Is a hot discussion in the community in the last few days! Send us your opinion on tiwtter @wlscommunity #Glassfish #WebLogicCommunity We posted theGlassFishStrategy.pptx at our WebLogic Community Workspace (WebLogic Community membership required). Please read also the Java EE and GlassFish Server Roadmap Update Bruno Borges ?Another great article covering story about #GlassFish. Comments starting to be reasonable ;-) 6 facts helped a lot http://adtmag.com/articles/2013/11/08/oracle-drops-glassfish.aspx … Adam Bien ?What Oracle Could Do For GlassFish Now: Move the sources to GitHub (GitHub is the most popular collaboration p... http://bit.ly/1d1uo24 JAXenter.com ?Oracle evangelist: “GlassFish Open Source Edition is not dead” http://jaxenter.com/oracle-evangelist-glassfish-open-source-edition-is-not-dead-48830.html … GlassFish 6 Facts About #GlassFish Announcement and the Future of #JavaEE http://bit.ly/1bbSVPf via @brunoborges David Blevins ?In support of our #GlassFish friends and open source in general: Feed the Fish http://www.tomitribe.com/blog/2013/11/feed-the-fish/ … #JavaEE #opensource #manifesto GlassFish ?GlassFish Server Open Source Edition 4.1 is scheduled for 2014. Version 5.0 as impl for #JavaEE8 https://blogs.oracle.com/theaquarium/entry/java_ee_and_glassfish_server … #Community focused C2B2 Consulting ?C2B2 continues to offer support for your operational #JEE applications running on #GlassFish http://blog.c2b2.co.uk/2013/11/oracle-dropping-commercial-support-of.html … #Java Markus Eisele ?RT @InfoQ: #GlassFish Commercial Edition is Dead http://bit.ly/17eFB0Z < at least they agree to my points... Adam Bien suggests: Move the sources to GitHub (GitHub is the most popular collaboration platform). It is more likely for an individual to contribute via GitHub, than the current infrastructure. Introduce a business friendlier license like e.g. the Apache license. Companies interesting in providing added value (and commercial support) on top of existing sources would appreciate it. Implement GitHub-based, open source, CI system with nightly builds. Introduce a transparent voting process / pull-request acceptance process. Release more frequently. Keep https://glassfish.java.net as the main hub. C2B2 offers Glassfish support by Steve Millidge Oracle have just announced that commercial support for GlassFish 4 will not be available from Oracle. In light of this announcement I thought I would put together some thoughts about how I see this development. I think the key word in this announcement is "commercial", nowhere does Oracle announce the "death of GlassFish" in contrary Oracle reaffirm; GlassFish Server Open Source Edition continues to be the strategic foundation for Java EE reference implementation going forward. And for developers, updates will be delivered as needed to continue to deliver a great developer experience for GlassFish Server Open Source Edition so GlassFish is not about to go away soon. In a similar fashion RedHat do not provide commercial support for WildFly and only provide commercial support for JBoss EAP. Admittedly JBoss EAP and WildFly are much closer together than GlassFish and WebLogic but WildFly and JBoss EAP are absolutely NOT the same thing. The key going forward to the viability of GlassFish as a production platform is how the GlassFish community develops; How often does the community release binary builds? How open is the community to bug fixes? How much engineering resource does Oracle commit to GlassFish? At this stage we just don't know the answers to these questions. If the GlassFish open source project continues on it's current trajectory without a commercial support offering then I don't see much of a problem. Oracle just have to work harder to sell migration paths to WebLogic in the same way as RedHat have to sell migration paths from WildFly to JBoss EAP. In the meantime C2B2 continues to offer support for your operational JEE applications running on GlassFish and we will endeavour to work with the community to get any bugs fixed. The key difference is we can no longer back our Expert Support with a support contract from Oracle for patches and fixes for any release greater than 3.x. Read the complete article here. 6 Facts About GlassFish Announcement By Bruno.Borges Fact #1 - GlassFish Open Source Edition is not dead GlassFish Server Open Source Edition will remain the reference implementation of Java EE. The current trunk is where an implementation for Java EE 8 will flourish, and this will become the future GlassFish 5.0. Calling "GlassFish is dead" does no good to the Java EE ecosystem. The GlassFish Community will remain strong towards the future of Java EE. Without revenue-focused mind, this might actually help the GlassFish community to shape the next version, and set free from any ties with commercial decisions. Fact #2 - OGS support is not over As I said before, GlassFish Server Open Source Edition will continue. Main change is that there will be no more future commercial releases of Oracle GlassFish Server. New and existing OGS 2.1.x and 3.1.x commercial customers will continue to be supported according to the Oracle Lifetime Support Policy. In parallel, I believe there's no other company in the Java EE business that offers commercial support to more than one build of a Java EE application server. This new direction can actually help customers and partners, simplifying decision through commercial negotiations. Fact #3 - WebLogic is not always more expensive than OGS Oracle GlassFish Server ("OGS") is a build of GlassFish Server Open Source Edition bundled with a set of commercial features called GlassFish Server Control and license bundles such as Java SE Support. OGS has at the moment of this writing the pricelist of U$ 5,000 / processor. One information that some bloggers are mentioning is that WebLogic is more expensive than this. Fact 3.1: it is not necessarily the case. The initial edition of WebLogic is called "Standard Edition" and falls into a policy where some “Standard Edition” products are licensed on a per socket basis. As of current pricelist, US$ 10,000 / socket. If you do the math, you will realize that WebLogic SE can actually be significantly more cost effective than OGS, and a customer can save money if running on a CPU with 4 cores or more for example. Quote from the price list: “When licensing Oracle programs with Standard Edition One or Standard Edition in the product name (with the exception of Java SE Support, Java SE Advanced, and Java SE Suite), a processor is counted equivalent to an occupied socket; however, in the case of multi-chip modules, each chip in the multi-chip module is counted as one occupied socket.” For more details speak to your Oracle sales representative - this is clearly at list price and every customer typically has a relationship with Oracle (like they do with other vendors) and different contractual details may apply. And although OGS has always been production-ready for Java EE applications, it is no secret that WebLogic has always been more enterprise, mission critical application server than OGS since BEA. Different editions of WLS provide features and upgrade irons like the WebLogic Diagnostic Framework, Work Managers, Side by Side Deployment, ADF and TopLink bundled license, Web Tier (Oracle HTTP Server) bundled licensed, Fusion Middleware stack support, Oracle DB integration features, Oracle RAC features (such as GridLink), Coherence Management capabilities, Advanced HA (Whole Service Migration and Server Migration), Java Mission Control, Flight Recorder, Oracle JDK support, etc. Fact #4 - There’s no major vendor supporting community builds of Java EE app servers There are no major vendors providing support for community builds of any Open Source application server. For example, IBM used to provide community support for builds of Apache Geronimo, not anymore. Red Hat does not commercially support builds of WildFly and if I remember correctly, never supported community builds of former JBoss AS. Oracle has never commercially supported GlassFish Server Open Source Edition builds. Tomitribe appears to be the exception to the rule, offering commercial support for Apache TomEE. Fact #5 - WebLogic and GlassFish share several Java EE implementations It has been no secret that although GlassFish and WebLogic share some JSR implementations (as stated in the The Aquarium announcement: JPA, JSF, WebSockets, CDI, Bean Validation, JAX-WS, JAXB, and WS-AT) and WebLogic understands GlassFish deployment descriptors, they are not from the same codebase. Fact #6 - WebLogic is not for GlassFish what JBoss EAP is for WildFly WebLogic is closed-source offering. It is commercialized through a license-based plus support fee model. OGS although from an Open Source code, has had the same commercial model as WebLogic. Still, one cannot compare GlassFish/WebLogic to WildFly/JBoss EAP. It is simply not the same case, since Oracle has had two different products from different codebases. The comparison should be limited to GlassFish Open Source / Oracle GlassFish Server versus WildFly / JBoss EAP. Read the complete article here WebLogic Partner Community For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Mix Forum Wiki Technorati Tags: Glassfish,training,WebLogic,WebLogic Community,Oracle,OPN,Jürgen Kress

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  • Software development is (mostly) a trade, and what to do about it

    - by Jeff
    (This is another cross-post from my personal blog. I don’t even remember when I first started to write it, but I feel like my opinion is well enough baked to share.) I've been sitting on this for a long time, particularly as my opinion has changed dramatically over the last few years. That I've encountered more crappy code than maintainable, quality code in my career as a software developer only reinforces what I'm about to say. Software development is just a trade for most, and not a huge academic endeavor. For those of you with computer science degrees readying your pitchforks and collecting your algorithm interview questions, let me explain. This is not an assault on your way of life, and if you've been around, you know I'm right about the quality problem. You also know the HR problem is very real, or we wouldn't be paying top dollar for mediocre developers and importing people from all over the world to fill the jobs we can't fill. I'm going to try and outline what I see as some of the problems, and hopefully offer my views on how to address them. The recruiting problem I think a lot of companies are doing it wrong. Over the years, I've had two kinds of interview experiences. The first, and right, kind of experience involves talking about real life achievements, followed by some variation on white boarding in pseudo-code, drafting some basic system architecture, or even sitting down at a comprooder and pecking out some basic code to tackle a real problem. I can honestly say that I've had a job offer for every interview like this, save for one, because the task was to debug something and they didn't like me asking where to look ("everyone else in the company died in a plane crash"). The other interview experience, the wrong one, involves the classic torture test designed to make the candidate feel stupid and do things they never have, and never will do in their job. First they will question you about obscure academic material you've never seen, or don't care to remember. Then they'll ask you to white board some ridiculous algorithm involving prime numbers or some kind of string manipulation no one would ever do. In fact, if you had to do something like this, you'd Google for a solution instead of waste time on a solved problem. Some will tell you that the academic gauntlet interview is useful to see how people respond to pressure, how they engage in complex logic, etc. That might be true, unless of course you have someone who brushed up on the solutions to the silly puzzles, and they're playing you. But here's the real reason why the second experience is wrong: You're evaluating for things that aren't the job. These might have been useful tactics when you had to hire people to write machine language or C++, but in a world dominated by managed code in C#, or Java, people aren't managing memory or trying to be smarter than the compilers. They're using well known design patterns and techniques to deliver software. More to the point, these puzzle gauntlets don't evaluate things that really matter. They don't get into code design, issues of loose coupling and testability, knowledge of the basics around HTTP, or anything else that relates to building supportable and maintainable software. The first situation, involving real life problems, gives you an immediate idea of how the candidate will work out. One of my favorite experiences as an interviewee was with a guy who literally brought his work from that day and asked me how to deal with his problem. I had to demonstrate how I would design a class, make sure the unit testing coverage was solid, etc. I worked at that company for two years. So stop looking for algorithm puzzle crunchers, because a guy who can crush a Fibonacci sequence might also be a guy who writes a class with 5,000 lines of untestable code. Fashion your interview process on ways to reveal a developer who can write supportable and maintainable code. I would even go so far as to let them use the Google. If they want to cut-and-paste code, pass on them, but if they're looking for context or straight class references, hire them, because they're going to be life-long learners. The contractor problem I doubt anyone has ever worked in a place where contractors weren't used. The use of contractors seems like an obvious way to control costs. You can hire someone for just as long as you need them and then let them go. You can even give them the work that no one else wants to do. In practice, most places I've worked have retained and budgeted for the contractor year-round, meaning that the $90+ per hour they're paying (of which half goes to the person) would have been better spent on a full-time person with a $100k salary and benefits. But it's not even the cost that is an issue. It's the quality of work delivered. The accountability of a contractor is totally transient. They only need to deliver for as long as you keep them around, and chances are they'll never again touch the code. There's no incentive for them to get things right, there's little incentive to understand your system or learn anything. At the risk of making an unfair generalization, craftsmanship doesn't matter to most contractors. The education problem I don't know what they teach in college CS courses. I've believed for most of my adult life that a college degree was an essential part of being successful. Of course I would hold that bias, since I did it, and have the paper to show for it in a box somewhere in the basement. My first clue that maybe this wasn't a fully qualified opinion comes from the fact that I double-majored in journalism and radio/TV, not computer science. Eventually I worked with people who skipped college entirely, many of them at Microsoft. Then I worked with people who had a masters degree who sucked at writing code, next to the high school diploma types that rock it every day. I still think there's a lot to be said for the social development of someone who has the on-campus experience, but for software developers, college might not matter. As I mentioned before, most of us are not writing compilers, and we never will. It's actually surprising to find how many people are self-taught in the art of software development, and that should reveal some interesting truths about how we learn. The first truth is that we learn largely out of necessity. There's something that we want to achieve, so we do what I call just-in-time learning to meet those goals. We acquire knowledge when we need it. So what about the gaps in our knowledge? That's where the most valuable education occurs, via our mentors. They're the people we work next to and the people who write blogs. They are critical to our professional development. They don't need to be an encyclopedia of jargon, but they understand the craft. Even at this stage of my career, I probably can't tell you what SOLID stands for, but you can bet that I practice the principles behind that acronym every day. That comes from experience, augmented by my peers. I'm hell bent on passing that experience to others. Process issues If you're a manager type and don't do much in the way of writing code these days (shame on you for not messing around at least), then your job is to isolate your tradespeople from nonsense, while bringing your business into the realm of modern software development. That doesn't mean you slap up a white board with sticky notes and start calling yourself agile, it means getting all of your stakeholders to understand that frequent delivery of quality software is the best way to deal with change and evolving expectations. It also means that you have to play technical overlord to make sure the education and quality issues are dealt with. That's why I make the crack about sticky notes, because without the right technique being practiced among your code monkeys, you're just a guy with sticky notes. You're asking your business to accept frequent and iterative delivery, now make sure that the folks writing the code can handle the same thing. This means unit testing, the right instrumentation, integration tests, automated builds and deployments... all of the stuff that makes it easy to see when change breaks stuff. The prognosis I strongly believe that education is the most important part of what we do. I'm encouraged by things like The Starter League, and it's the kind of thing I'd love to see more of. I would go as far as to say I'd love to start something like this internally at an existing company. Most of all though, I can't emphasize enough how important it is that we mentor each other and share our knowledge. If you have people on your staff who don't want to learn, fire them. Seriously, get rid of them. A few months working with someone really good, who understands the craftsmanship required to build supportable and maintainable code, will change that person forever and increase their value immeasurably.

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  • Wisdom of merging 100s of Oracle instances into one instance

    - by hoytster
    Our application runs on the web, is mostly an inquiry tool, does some transactions. We host the Oracle database. The app has always had a different instance of Oracle for each customer. A customer is a company which pays us to provide our service to the company's employees, typically 10,000-25,000 employees per customer. We do a major release every few years, and migrating to that new release is challenging: we might have a team at the customer site for a couple weeks, explaining new functionality and setting up the driving data to suit that customer. We're considering going multi-client, putting all our customers into a single shared Oracle 11g instance on a big honkin' Windows Server 2008 server -- in order to reduce costs. I'm wondering if that's advisable. There are some advantages to having separate instances for each customer. Tell me if these are bogus, please. In my rough guess about decreasing importance: Our customers MyCorp and YourCo can be migrated separately when breaking changes are made to the schema. (With multi-client, we'd be migrating 300+ customers overnight!?!) MyCorp's data can be easily backed up and (!!!) restored, without affecting other customers. MyCorp's data is securely separated from their competitor YourCo's data, without depending on developers to get the code right and/or DBAs getting the configuration right. Performance is better because the database is smaller (5,000 vs 2,000,000 rows in ~50 tables). If MyCorp's offices are (mostly) in just one region, then the MyCorp's instance can be geographically co-located there, so network lag doesn't hurt performance. We can provide better service to global clients, for the same reason. In MyCorp wants to take their database in-house, then we can easily export their instance, to get MyCorp their data. Load-balancing is easier because instances can be placed on different servers (this is with a web farm). When a DEV or QA instance is needed, it's easier to clone the real instance and anonymize the data, because there's much less data. Because they're small enough, developers can have their own instance running locally, so they can work on code while waiting at the airport and while in-flight, without fighting VPN hassles. Q1: What are other advantages of separate instances? We are contemplating changing the database schema and merging all of our customers into one Oracle instance, running on one hefty server. Here are advantages of the multi-client instance approach, most important first (my WAG). Please snipe if these are bogus: Less work for the DBAs, since they only need to maintain one instance instead of hundreds. Less DBA work translates to cheaper, our main motive for this change. With just one instance, the DBAs can do a better job of optimizing performance. They'll have time to add appropriate indexes and review our SQL. It will be easier for developers to debug & enhance the application, because there is only one schema and one app (there might be dozens of schema versions if there are hundreds of instances, with a different version of the app for each version of the schema). This reduces costs too. The alternative is having to start every debug session with (1) What version is this customer running and (2) Let's struggle to recreate the corresponding development environment, code and database. (We need a Virtual Machine that includes the code AND database instance for each patch and release!) Licensing Oracle is cheaper because it's priced per server irrespective of heft (or something -- I don't know anything about the subject). The database becomes a viable persistent store for web session data, because there is just one instance. Some database operations are easier with one multi-client instance, like finding a participant when they're hazy about which customer they (or their spouse, maybe) works for: all the names are in one table. Reporting across customers is straightforward. Q2: What are other advantages of having multiple clients in one instance? Q3: Which approach do you think is better (why)? Instance per customer, or all customers in one instance? I'm concerned that having one multi-client instance makes migration near-impossible, and that's a deal killer... ... unless there is a compromise solution like having two multi-client instances, the old and the new. In that case case, we would design cross-instance solutions for finding participants, reporting, etc. so customers could go from one multi-client instance to the next without anything breaking. THANKS SO MUCH for your collective advice! This issue is beyond me -- but not beyond the collective you. :) Hoytster

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