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• My 2009 MacBook Logic board failed - options to proceed and how difficult?

  - by user181061

  Scannerz just gave my MacBook logic board a big fat F! I upgraded from Snow Leopard to Mountain Lion about 3 weeks ago. The system was running short of memory so I upgraded it. The system was running fine for about 2 weeks. Yesterday the thing started acting erratic. A lot of spinning beach balls, delays, and then some errors saying files couldn't be read to or from the drive. I figured the drive was going because the system is over 3 years old. I ran Scannerz on it and it indicated a lot of errors and irregularities. I rescanned it in cursory mode, and none of them were repeatable, just showing up all over the place in different regions of the scan. I went through the docs and they implied either an I/O cable was bad, a connection was damaged, or the logic board was bad. I tossed on my backup of Snow Leopard that I cloned from the original hard drive because I figured Mountain Lion was to blame and booted from the USB drive with the clone on it. It wasn't. I performed scans on every single port, and errors and irregularities that couldn't be repeated were showing up on every single one of them. I then, for kicks, put a CD into the CD player. Scannerz doesn't test optical drives but I figured surely that will work. No it won't. More spinning beach balls and messages telling me it can't be read. It was working fine 3 days ago. I know a lot of people don't like MacBook's, but mine's been great, at least until now. It was working great even with Mountain Lion after the upgrade. The system is a mid-2009 MacBook. In my opinion, it's a complete waste to toss this system. The display is too good, the keyboard works great, and it still looks good, plus this type of MacBook still uses the FireWire 400 port and I use that for Time Machine backups. I've tried reseating the RAM, it didn't do anything. I shut the system down and put in the old RAM, booted to Snow Leopard, and the problems persist. Here are my questions: The Scannerz documentation somewhere said something about the Airport card not being seated properly, but when I go to iFixit, it's apparent, at least I think it's apparent, that this isn't a slot type Airport card that the user can easily install or remove. If the cables or connections to the Airport card are bad, could they be causing this problem. How about any other connections that can be intermittent, failing or erratic? Any type of resets that I could possibly do to get rid of this? For any of those that have replaced a logic board on a MacBook, if this really is the culprit, are there any "gotcha's" I need to be aware of? As an FYI, I replaced the hard drive on an old iBook @500MHz that I had a long time ago, and I replaced the drive on a 1.33GHz PowerBook about 6 years ago. You have to be careful, but using some of the info on web sites like iFixit it's not that hard. Time consuming, but not that hard. The Intel based MacBook's to me look like they're easier to service than either of those. I'm thinking about getting a unit off of eBay that matches mine but has something else wrong with it, like a busted display. I REFUSE to buy a new system. A guy at my office has a 2007 Mac Pro and he can't upgrade to Mountain Lion because his system is "obsoleted." That's ridiculous. If you pay nearly $7,500 for a system it shouldn't be trash just because Apple decides they don't have enough money (sorry for the soap box, but it's true, IMO!) Any input is appreciated.

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• Nginx fastcgi problems with django (double slashes in url?)

  - by wizard

  I'm deploying my first django app. I'm familiar with nginx and fastcgi from deploying php-fpm. I can't get python to recognize the urls. I'm also at a loss on how to debug this further. I'd welcome solutions to this problem and tips on debugging fastcgi problems. Currently I get a 404 page regardless of the url and for some reason a double slash For http://www.site.com/admin/ Page not found (404) Request Method: GET Request URL: http://www.site.com/admin// My urls.py from the debug output - which work in the dev server. Using the URLconf defined in ahrlty.urls, Django tried these URL patterns, in this order: ^listings/ ^admin/ ^accounts/login/$ ^accounts/logout/$ my nginx config server { listen 80; server_name beta.ahrlty.com; access_log /home/ahrlty/ahrlty/logs/access.log; error_log /home/ahrlty/ahrlty/logs/error.log; location /static/ { alias /home/ahrlty/ahrlty/ahrlty/static/; break; } location /media/ { alias /usr/lib/python2.6/dist-packages/django/contrib/admin/media/; break; } location / { include /etc/nginx/fastcgi_params; fastcgi_pass 127.0.0.1:8001; break; } } and my fastcgi_params fastcgi_param QUERY_STRING $query_string; fastcgi_param REQUEST_METHOD $request_method; fastcgi_param CONTENT_TYPE $content_type; fastcgi_param CONTENT_LENGTH $content_length; fastcgi_param SCRIPT_NAME $fastcgi_script_name; fastcgi_param REQUEST_URI $request_uri; fastcgi_param DOCUMENT_URI $document_uri; fastcgi_param DOCUMENT_ROOT $document_root; fastcgi_param SERVER_PROTOCOL $server_protocol; fastcgi_param GATEWAY_INTERFACE CGI/1.1; fastcgi_param SERVER_SOFTWARE nginx/$nginx_version; fastcgi_param REMOTE_ADDR $remote_addr; fastcgi_param REMOTE_PORT $remote_port; fastcgi_param SERVER_ADDR $server_addr; fastcgi_param SERVER_PORT $server_port; fastcgi_param SERVER_NAME $server_name; fastcgi_param PATH_INFO $fastcgi_script_name; # PHP only, required if PHP was built with --enable-force-cgi-redirect fastcgi_param REDIRECT_STATUS 200; And lastly I'm running fastcgi from the commandline with django's manage.py. python manage.py runfcgi method=threaded host=127.0.0.1 port=8080 pidfile=mysite.pid minspare=4 maxspare=30 daemonize=false I'm having a hard time debugging this one. Does anything jump out at anybody? Notes nginx version: nginx/0.7.62 Django svn trunk rev 13013

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• iotop for Linux kernel 2.6.18

  - by Lightsauce

  So it has to come to my attention that iotop isn't availalbe for 2.6.18 since it's less than 2.6.20 and requires Python 2.6+. I've done some research and came across this article: http://lserinol.blogspot.com/2009/09/io-usage-per-process-on-linux.html According to this, if these process have io stats in /proc/pid#/io (where pid# is the process #) it's doable regardless of the kernel version. So, in reality, I could upgrade Python to 2.6 and test out iotop. However, my flavor of Linux, CentOS release 5.5 (Final), only supports Python 2.4.3-44.el5 currently. If I were to do uninstall from yum, it doesn't look so pretty. It ends up wanting to uninstall 235 packages, most of which are very important! I read in one place, online (I forget the URL from yesterday), that you can install Python 2.6+ parallel to this one, and have the rpm install for iotop use that. Well, I didn't choose that route. I figured, what the heck, lets write iotop (not copying it, but reverse engineering it without actually looking at it's code/it in use) in bash. I thought it would just grab the /proc/pid#/io file and parse stats. So I wrote a script to grab the top 10 rchar, wchar, read_bytes, and write_bytes by collecting all these stats from all the /proc/pid#/io files, sorting them by each metric, then grabbing the top 10 highest values. The conclusion, the data seems completely useless. Does anybody know any resources for advanced Linux where I can figure out how to take these /proc/pid#/ directories and figure out what the heck they are doing with io on the disk? My main goal is to figure out what exactly is causing high load on my disk. I just know it's on the / partition (/dev/sda2 in this case), and I'm not really sure how to narrow it down without the help of iotop. If I run iostat to grab metrics for 1 minute, every second, the first result it gives me shows a high 'kB_read/s', so that makes me think, it's reading mostly. However, if I watch the update it gives me every second, it's actually just showing values for kB_wrtn/s. This makes me think the initial value iostat gives me is misleading.

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• Two DHCP Servers, Block Clients for one of them?

  - by Rilindo

  I am building out a kickstart network that resides on a different VLAN uses its own DHCP server. For some reason, my kickstart clients kept getting assign IPs from my primary DHCP server. The way I have it set up is that I have a primary DHCP server on this router here: 192.168.15.1 Connected to that DHCP server is a switch with the IP of 192.168.15.2. My kickstart (Scientific Linux) server is connected to that switch on two ports: Port 2 - where the kickstart server communicates to the rest of the production network via eth0. The IP assigned to the server on that interface is 192.168.15.100 (on eth0). The details are: Interface: eth0 IP: 192.168.15.100 Netmask: 255.255.255.0 Gateway: 192.168.15.1 Port 7 - has it's own VLAN ID (along with port 8). The kickstart server is connected to that port with the IP of 172.16.15.100 (on eth1). Again, the details are: Interface: eth1 IP: 172.16.15.100 Netmask: 255.255.255.0 Gateway: none The kickstart server runs its own DHCP server and assigns them over the eth1. Most of the kick starts are built over the kickstart VLAN through port 8. To prevent the kickstart DHCP server from assigning addresses over the production network, I have the route setup like so: route add -host 255.255.255.255 dev eth1 At this point, the clients kept getting assign IPs from the 192.168.15.1 DHCP server. I need to figure out a way to block client requests from reaching that DHCP. Its should be noted that but I also build KVM hosts on the kickstart server as well, so I need those KVMs to have the ability to get DHCP requests from the 192.168.15.1 DHCP server via the bridge network once I finish resolved this particular problem. (Currently, they communicate via NAT). So what would be done to resolve this? Through iptables or some sort of routing I need to put in? I tried to limited to requests via IPtables on that interface, allowing DHCP requests for 172.16.15.x network: -A INPUT -i eth1 -s 172.16.15.0/24 -p udp -m udp --dport 69 -j ACCEPT -A INPUT -i eth1 -s 172.16.15.0/24 -p tcp -m tcp --dport 69 -j ACCEPT -A INPUT -i eth1 -s 172.16.15.0/24 -p udp -m udp --dport 68 -j ACCEPT -A INPUT -i eth1 -s 172.16.15.0/24 -p tcp -m tcp --dport 68 -j ACCEPT -A INPUT -i eth1 -s 172.16.15.0/24 -p udp -m udp --dport 67 -j ACCEPT -A INPUT -i eth1 -s 172.16.15.0/24 -p tcp -m tcp --dport 67 -j ACCEPT And rejects assignments on eth1 from 192.168.15.x network: -A FORWARD -o eth1 -s 192.168.15.0/24 -p udp -m udp --dport 69 -j REJECT -A FORWARD -o eth1 -s 192.168.15.0/24 -p tcp -m tcp --dport 69 -j REJECT -A FORWARD -o eth1 -s 192.168.15.0/24 -p udp -m udp --dport 68 -j REJECT -A FORWARD -o eth1 -s 192.168.15.0/24 -p tcp -m tcp --dport 68 -j REJECT -A FORWARD -o eth1 -s 192.168.15.0/24 -p udp -m udp --dport 67 -j REJECT -A FORWARD -o eth1 -s 192.168.15.0/24 -p tcp -m tcp --dport 67 -j REJECT Nope. :(

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• How to setup Proxy Cache with Nginx and Passenger

  - by tiny

  I use Nginx and Passenger for my rails application. I want to use proxy cache to cache my pages. However, every request go direct to my rails application. I don't know what wrong with my configuration. Below is my configuration: user www-data; worker_processes 1; events { worker_connections 1024; } http { passenger_root /usr/lib/ruby/gems/1.8/gems/passenger-2.2.15; passenger_ruby /usr/bin/ruby1.8; passenger_max_pool_size 6; passenger_max_instances_per_app 1; passenger_pool_idle_time 0; rails_spawn_method conservative; include mime.types; default_type application/octet-stream; server_names_hash_bucket_size 512; sendfile on; #tcp_nopush on; keepalive_timeout 65; tcp_nodelay on; gzip on; gzip_http_version 1.0; gzip_vary on; gzip_comp_level 6; gzip_proxied any; gzip_types text/plain text/css text/javascript application/javascript application/json application/x-javascript text/xml application/xml application/xml+rss; proxy_cache_path /var/www/cache/webapp levels=1:2 keys_zone=webapp:8m max_size=1000m inactive=600m; include vhosts/*.conf; include /opt/nginx/conf/sites-enabled/*; root /var/www; } server { listen 127.0.0.1:3008; server_name localhost; root /var/www/yoolk_web_app/public; # <--- be sure to point to 'public'! passenger_enabled on; rails_env development; passenger_use_global_queue on; } server { listen 80; server_name webpage.dev; proxy_set_header X-Real-IP $remote_addr; proxy_set_header Host $host; error_page 503 http://$host/maintenance.html; location ~* (css|js|png|jpe?g|gif|ico)$ { root /var/www/web_app/public; expires max; } location / { proxy_pass http://127.0.0.1:3008/; proxy_cache webapp; proxy_cache_valid 200 10m; } #More Location }

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• Apache's htcacheclean doesn't scale: How to tame a huge Apache disk_cache?

  - by flight

  We have an Apache setup with a huge disk_cache (500.000 entries, 50 GB disk space used). The cache grows by 16 GB every day. My problem is that the cache seems to be growing nearly as fast as it's possible to remove files and directories from the cache filesystem! The cache partition is an ext3 filesystem (100GB, "-t news") on an iSCSI storage. The Apache server (which acts as a caching proxy) is a VM. The disk_cache is configured with CacheDirLevels=2 and CacheDirLength=1, and includes variants. A typical file path is "/htcache/B/x/i_iGfmmHhxJRheg8NHcQ.header.vary/A/W/oGX3MAV3q0bWl30YmA_A.header". When I try to call htcacheclean to tame the cache (non-daemon mode, "htcacheclean-t -p/htcache -l15G"), IOwait is going through the roof for several hours. Without any visible action. Only after hours, htcacheclean starts to delete files from the cache partition, which takes a couple more hours. (A similar problem was brought up in the Apache mailing list in 2009, without a solution: http://www.mail-archive.com/[email protected]/msg42683.html) The high IOwait leads to problems with the stability of the web server (the bridge to the Tomcat backend server sometimes stalls). I came up with my own prune script, which removes files and directories from random subdirectories of the cache. Only to find that the deletion rate of the script is just slightly higher than the cache growth rate. The script takes ~10 seconds to read the a subdirectory (e.g. /htcache/B/x) and frees some 5 MB of disk space. In this 10 seconds, the cache has grown by another 2 MB. As with htcacheclean, IOwait goes up to 25% when running the prune script continuously. Any idea? Is this a problem specific to the (rather slow) iSCSI storage? Should I choose a different file system for a huge disk_cache? ext2? ext4? Are there any kernel parameter optimizations for this kind of scenario? (I already tried the deadline scheduler and a smaller read_ahead_kb, without effect).

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• Nginx Rewrite Rule For File Within Folder Not Working

  - by user3620111

  Good evening everyone or possible early morning if you are in my neck of the woods. My problem seems trivial but after several hours of testing, researching and fiddling I can't seem to get this simple nginx rewrite function to work. There are several rewrites we need, some will have multiple parameters but I cant even get this simple 1 parameter current url to alter at all to the desired. Current: website.com/public/viewpost.php?id=post-title Desired: website.com/public/post/post-title Can someone kindly point me to as what I have done wrong, I am baffled / very tired... For testing purposes before we launch we were just using a simple port on the server. Here is that section. # Listen on port 7774 for dev test server { listen 7774; server_name localhost; root /usr/share/nginx/html/paa; index index.php home.php index.html index.htm /public/index.php; location ~* /uploads/.*\.php$ { if ($request_uri ~* (^\/|\.jpg|\.png|\.gif)$ ) { break; } return 444; } location ~ \.php$ { try_files $uri @rewrite =404; fastcgi_index index.php; include fastcgi_params; fastcgi_pass php5-fpm-sock; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; fastcgi_intercept_errors on; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; } location @rewrite { rewrite ^/viewpost.php$ /post/$arg_id? permanent; } } I have tried countless attempts such as above @rewrite and simpler: location / { rewrite ^/post/(.*)$ /viewpost.php?id=$1 last; } location ~ \.php$ { try_files $uri =404; fastcgi_index index.php; include fastcgi_params; fastcgi_pass php5-fpm-sock; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; fastcgi_intercept_errors on; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; } I can not seem to get anything to work at all, I have tried changing the location tried multiple rules... Please tell me what I have done wrong. Pause for facepalm [relocated from stack overflow as per mod suggestion]

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• how can I give openvpn clients access to a dns server (bind9) that is located on the same machine as the openvpn server

  - by lacrosse1991

  I currently have a debian server that is running an openvpn server. I also have a dns server (bind9) that I would like give allow access to by the connected openvpn clients, but I am unsure as of how to do this, I already known how to send dns options to the clients using push "dhcp-option DNS x.x.x.x" but I am just unsure how give the clients access to the dns server that is located on the same machine as the vpn server, so if anyone could point me in the right direction I would really appreciate it. Also in case this would have anything to do with adding rules to iptables, this is my current configuration for iptables # Generated by iptables-save v1.4.14 on Thu Oct 18 22:05:33 2012 *nat :PREROUTING ACCEPT [3831842:462225238] :INPUT ACCEPT [3820049:461550908] :OUTPUT ACCEPT [1885011:139487044] :POSTROUTING ACCEPT [1883834:139415168] -A POSTROUTING -s 10.8.0.0/24 -o eth0 -j MASQUERADE COMMIT # Completed on Thu Oct 18 22:05:33 2012 # Generated by iptables-save v1.4.14 on Thu Oct 18 22:05:33 2012 *filter :INPUT ACCEPT [45799:10669929] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [45747:10335026] :fail2ban-apache - [0:0] :fail2ban-apache-myadmin - [0:0] :fail2ban-apache-noscript - [0:0] :fail2ban-ssh - [0:0] :fail2ban-ssh-ddos - [0:0] :fail2ban-webserver-w00tw00t - [0:0] -A INPUT -p tcp -m multiport --dports 80,443 -j fail2ban-apache-myadmin -A INPUT -p tcp -m multiport --dports 80,443 -j fail2ban-webserver-w00tw00t -A INPUT -p tcp -m multiport --dports 80,443 -j fail2ban-apache-noscript -A INPUT -p tcp -m multiport --dports 80,443 -j fail2ban-apache -A INPUT -p tcp -m multiport --dports 22 -j fail2ban-ssh-ddos -A INPUT -p tcp -m multiport --dports 22 -j fail2ban-ssh -A INPUT -i tun+ -j ACCEPT -A INPUT -i eth0 -p tcp -m tcp --dport 3306 -j ACCEPT -A FORWARD -i tun+ -j ACCEPT -A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT -A fail2ban-apache -j RETURN -A fail2ban-apache-myadmin -s 211.154.213.122/32 -j DROP -A fail2ban-apache-myadmin -s 201.170.229.96/32 -j DROP -A fail2ban-apache-myadmin -j RETURN -A fail2ban-apache-noscript -j RETURN -A fail2ban-ssh -s 76.9.59.66/32 -j DROP -A fail2ban-ssh -s 64.13.220.73/32 -j DROP -A fail2ban-ssh -s 203.69.139.179/32 -j DROP -A fail2ban-ssh -s 173.10.11.146/32 -j DROP -A fail2ban-ssh -j RETURN -A fail2ban-ssh-ddos -j RETURN -A fail2ban-webserver-w00tw00t -s 217.70.51.154/32 -j DROP -A fail2ban-webserver-w00tw00t -s 86.35.242.58/32 -j DROP -A fail2ban-webserver-w00tw00t -j RETURN COMMIT # Completed on Thu Oct 18 22:05:33 2012 also here is my openvpn server configuration port 1194 proto udp dev tun ca ca.crt cert server.crt key server.key dh dh1024.pem server 10.8.0.0 255.255.255.0 ifconfig-pool-persist ipp.txt keepalive 10 120 comp-lzo user nobody group users persist-key persist-tun status /var/log/openvpn/openvpn-status.log verb 3 push "redirect-gateway def1" push "dhcp-option DNS 213.133.98.98" push "dhcp-option DNS 213.133.99.99" push "dhcp-option DNS 213.133.100.100" client-to-client

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• Apache will not stop/start gracefully

  - by ddjammin

  CentOs 6 64bit running apache 2.2.15-29.el6.centos. When I try to stop/start or restart httpd I get an error that says it has failed. A tail of the error log is below. I also noticed that a httpd.pid file is not created even though it is configured in the main conf file. If I set selinux to permissive, it works just fine. I do not want to run it with selinux disabled. If I delete the SSL_Mutex file it will start. HTTPD was running fine until I tried to add the ssl configuration. I copied over the ssl.conf file from a working server into the conf.d folder. I also copied a sslcert folder into the conf folder. It contains the certs, key, csr and password file. I think the problem has to do with the selinux context for the sslcert folder that was copied but I am not certain and not sure how to fix it. Below is the security context for the sslcert folder after executing restorecon -R sslcert ls -Z -rw-r--r--. root root system_u:object_r:httpd_config_t:s0 httpd.conf -rw-r--r--. root root system_u:object_r:httpd_config_t:s0 magic **drwxr-xr-x. root root system_u:object_r:httpd_config_t:s0 sslcert** tail -f /var/log/httpd/error_log [Thu Oct 17 13:33:19 2013] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec) [Thu Oct 17 13:33:20 2013] [notice] Digest: generating secret for digest authentication ... [Thu Oct 17 13:33:20 2013] [notice] Digest: done [Thu Oct 17 13:33:20 2013] [warn] pid file /etc/httpd/logs/ssl.pid overwritten -- Unclean shutdown of previous Apache run? [Thu Oct 17 13:33:20 2013] [notice] Apache/2.2.15 (Unix) DAV/2 mod_ssl/2.2.15 OpenSSL/1.0.0-fips configured -- resuming normal operations [Thu Oct 17 21:04:48 2013] [notice] caught SIGTERM, shutting down [Thu Oct 17 21:06:42 2013] [notice] **SELinux policy enabled; httpd running as context system_u:system_r:httpd_t:s0** [Thu Oct 17 21:06:42 2013] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec) [Thu Oct 17 21:06:42 2013] [error] (17)File exists: Cannot create SSLMutex with file `/etc/httpd/logs/ssl_mutex' I also saw mention of possible issues with semaphores. Below is the output of the current semaphores and apache is currently not running. ipcs -s ------ Semaphore Arrays -------- key semid owner perms nsems 0x00000000 0 root 600 1 0x00000000 65537 root 600 1 Finally selinux reports the following error. `sealert -a /var/log/audit/audit.log` 0% donetype=AVC msg=audit(1382034755.118:420400): avc: denied { write } for pid=3393 comm="httpd" name="ssl_mutex" dev=dm-0 ino=9513484 scontext=unconfined_u:system_r:httpd_t:s0 tcontext=unconfined_u:object_r:httpd_log_t:s0 tclass=file **** Invalid AVC allowed in current policy *** 100% doneERROR: failed to read complete file, 1044649 bytes read out of total 1043317 bytes (/var/log/audit/audit.log) found 1 alerts in /var/log/audit/audit.log -------------------------------------------------------------------------------- SELinux is preventing /usr/sbin/httpd from remove_name access on the directory ssl_mutex.

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• [CentOS 4.8] nslookup resolves domains to IPs, but I can't get a response to pings to external servers

  - by Beco

  I have a fresh install of CentOS 4.8 running on an internal development server. I haven't done anything to it besides setting up sudoers and SSH. I can SSH into the server and from there resolve domains to IPs and ping internal servers, but for some reason I don't get any response from pinging external servers. The software firewall is disabled, and the problem is present with both static and DHCP-assigned network configurations. The network domain controller is a Windows Server 2003 box. $ nslookup google.com Server: 10.254.2.5 Address: 10.254.2.5#53 Non-authoritative answer: Name: google.com Address: 74.125.47.147 Name: google.com Address: 74.125.47.99 <etc...> 10.254.2.5 is the Win2K3 server. $ ping google.com PING google.com (74.125.47.106) 56(84) bytes of data. It just hangs here indefinitely. $ cat /etc/resolv.conf ; generated by /sbin/dhclient-script search <...snip...>.local nameserver 10.254.2.5 nameserver 10.254.2.124 10.254.2.124 is the backup DC server, which is currently off and tombstoned by this point. The snipped section is our company name. # ifconfig eth0 Link encap:Ethernet HWaddr <snip> inet addr:10.254.2.101 Bcast:10.254.2.255 Mask:255.255.255.0 inet6 addr: <snip>/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:80066 errors:0 dropped:0 overruns:0 frame:0 TX packets:4421 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:7810133 (7.4 MiB) TX bytes:590550 (576.7 KiB) Interrupt:225 Base address:0xc000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:32 errors:0 dropped:0 overruns:0 frame:0 TX packets:32 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:8104 (7.9 KiB) TX bytes:8104 (7.9 KiB) # route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 10.254.2.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0 0.0.0.0 10.254.2.5 0.0.0.0 UG 0 0 0 eth0 And, for good measure, a snapshot of the current ethernet config via the system-config-network GUI. Edit: I don't yet have enough rep to post images, so here's a link. Sorry! system-config-network snapshot I'm pretty green when it comes to setting up *nix dev servers and network configuration in general, so please let me know if I've left out critical information, or posted information I shouldn't have posted. Thanks!

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• This page calls for XML namespace declared with prefix br but no taglibrary exists

  - by Christopher W. Allen-Poole

  I just finished the Netbeans introduction to Hibernate tutorial ( http://netbeans.org/kb/docs/web/hibernate-webapp.html#01 ) and I am getting the following error: "This page calls for XML namespace declared with prefix br but no taglibrary exists" Now, I have seen a similar question somewhere else: http://forums.sun.com/thread.jspa?threadID=5430327 but the answer is not listed there. Or, if it is, then I am clearly missing it -- line one of my index.xhtml file reads "http://www.w3.org/1999/xhtml". It also does not explain why, when I reload localhost:8080, the message disappears. Here is my index.xhtml file: <html xmlns="http://www.w3.org/1999/xhtml" xmlns:h="http://java.sun.com/jsf/html" xmlns:ui="http://java.sun.com/jsf/facelets" xmlns:f="http://java.sun.com/jsf/core"> <ui:composition template="./template.xhtml"> <ui:define name="body"> <h:form> <h:commandLink action="#{filmController.previous}" value="Previous #{filmController.pageSize}" rendered="#{filmController.hasPreviousPage}"/> <h:commandLink action="#{filmController.next}" value="Next #{filmController.pageSize}" rendered="#{filmController.hasNextPage}"/> <h:dataTable value="#{filmController.filmTitles}" var="item" border="0" cellpadding="2" cellspacing="0" rowClasses="jsfcrud_odd_row,jsfcrud_even_row" rules="all" style="border:solid 1px"> <h:column> <f:facet name="header"> <h:outputText value="Title"/> </f:facet> <h:outputText value="#{item.title}"/> </h:column> <h:column> <f:facet name="header"> <h:outputText value="Description"/> </f:facet> <h:outputText value="#{item.description}"/> </h:column> <h:column> <f:facet name="header"> <h:outputText value=" "/> </f:facet> <h:commandLink action="#{filmController.prepareView}" value="View"/> </h:column> </h:dataTable> <br/> </h:form> </ui:define> </ui:composition> </html>

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• Sorting Android ListView

  - by aeoth

  I'm only starting with Android dev, and while the Milestone is a nice device Java is not my natural language and I'm struggling with both the Google docs on Android SDK, Eclipse and Java itself. Anyway... I'm writing a microblog client for Android to go along with my Windows client (MahTweets). At the moment I've got Tweets coming and going without fail, the problem is with the UI. The initial call will order items correctly (as in highest to lowest) 3 2 1 When a refresh is made 3 2 1 6 5 4 After the tweets are processed, I'm calling adapter.notifyDataSetChanged(); Initially I thought that getItem() on the Adapter needed to be sorted (and the code below is what I ended up with), but I'm still not having any luck. public class TweetAdapter extends BaseAdapter { private List<IStatusUpdate> elements; private Context c; public TweetAdapter(Context c, List<IStatusUpdate> Tweets) { this.elements = Tweets; this.c = c; } public int getCount() { return elements.size(); } public Object getItem(int position) { Collections.sort(elements, new IStatusUpdateComparator()); return elements.get(position); } public long getItemId(int id) { return id; } public void Remove(int id) { notifyDataSetChanged(); } public View getView(int position, View convertView, ViewGroup parent) { RelativeLayout rowLayout; IStatusUpdate t = elements.get(position); rowLayout = t.GetParent().GetUI(t, parent, c); return rowLayout; } class IStatusUpdateComparator implements Comparator { public int compare(Object obj1, Object obj2) { IStatusUpdate update1 = (IStatusUpdate)obj1; IStatusUpdate update2 = (IStatusUpdate)obj2; int result = update1.getID().compareTo(update2.getID()); if (result == -1) return 1; else if (result == 1) return 0; return result; } } } Is there a better way to go about sorting ListViews in Android, while still being able to use the LayoutInflater? (rowLayout = t.GetParent().GetUI(t, parent, c) expands the UI to the specific view which the microblog implementation can provide)

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• Problems with transitionWithView and animateWithDuration

  - by MusicMathTech

  I have problems with transitionWithView and animateWithDuration. One of my animateWithDuration blocks doesn't transition, it is a sudden change, and transitionWithView does not temporarily disable user interaction. I have checked the docs and believe I am doing everything correctly, but obviously something is wrong. Here are the two blocks of code: This is in my main View Controller ViewController which has three container views/child view controllers. This block moves one of the container views, but does not block the user from other interactions in ViewController while the transition is occurring. [UIView transitionWithView:self.view duration:0.5 options:UIViewAnimationOptionCurveEaseOut animations:^ { CGRect frame = _containerView.frame; frame.origin.y = self.view.frame.size.height - _containerView.frame.size.height; _containerView.frame = frame; }completion:^(BOOL finished) { // do something }]; This is in one of my container view controllers. The animation seems to have no effect as the text of the productTitleLabel and productDescriptionTextView changes suddenly as if the animation block does not exist. - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { [self.viewController toggleFlavoredOliveOilsTableView]; if (indexPath.row > 0) { NSDictionary *selectedCellDict = [[_flavoredOliveOilsDict objectForKey:@"Unflavored Olive Oils"] objectAtIndex:indexPath.row - 1]; [UIView animateWithDuration:0.5 delay:0 options:UIViewAnimationOptionTransitionCrossDissolve animations:^ { self.viewController.productTitleLabel.text = [_flavoredOliveOilsTableView cellForRowAtIndexPath:indexPath].textLabel.text; self.viewController.productDescriptionTextView.text = [selectedCellDict objectForKey:@"Description"]; }completion:nil]; if (indexPath.row == 1) { [self.viewController setProductDescriptionTextViewFrameForInformationTab]; } else { [self.viewController setProductDescriptionTextViewFrameForNonInformationTab]; //self.viewController.productImageView.image = [UIImage imageNamed:[selectedCellDict objectForKey:@"Image"]]; } } } I think the problems are somewhat related as most of my animation and transition blocks don't work completely as expected. Thanks for any help. Edit What I am trying to accomplish is moving a container view in ViewController and set the text and image properties of a label, text view, and image view; all of which are in the main view. The details of these properties are sent via the child view controller. The transitionWithView is in a method called toggleFlavoredOiveOilsTableView which is called in didSelectRowAtIndexPath. I think the problem is that I am trying to call two different animation/transition blocks at the same time.

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• iPhone App IDs and Provisioning... Does App ID get used instead of provisioning ID if I decide to us

  - by Jann

  This is a question that has been bugging me for a while. I started my app (now submitted -- not yet approved) not wishing to get into the mess that is APNS (Push). I did the following: iPhone Developer Center: Provisioning Portal-Provisioning: Then I created a Development and a Distribution Provisioning Profile. I installed both in XCode. Everything hunky dory. The Development profile scares me a bit by expiring so soon (90 days) but I can remove it from the iPhone(s) and sign it with a new one later. I tested using the Development profile, and later to submitted it by signing it with the Distribution profile. I then uploaded the Distribution profile-signed app to iTunesConnect (app store). Okay, I understand that much. Now, what I don't understand is this: Now that I understand the theories and methods behind how Push works, I am wishing to add it to my app. I already went under: iPhone Developer Center: Provisioning Portal-App IDs: and created a Development Provisioning Profile and Distribution Provisioning Profile there (push & in-app purchase enabled). Here is where it gets confusing to me. All the books and docs I have read say that I have to sign the app with this "App ID" provisioning profile (push-enabled) from now on. Does that mean I no longer ever use the previously created provisioning profiles? If I were to import these "App ID" provisioning profiles into Xcode they will exist alongside my previously generated "non-push" profiles. ~/Library/Mobile Devices/Provisioning Profiles now has 2 files. One Devel and one Distrib. It will now have 4 even though for this app I will not use the "non-push" anymore right? (actually, since they are locked by using bundle-codes and app ids i will never use it again if all of my further versions of this app use Push?) Confused. Can anyone enlighten me? Why not use the "App ID" profiles in the first place for everyone -- even if you are not gonna use push? Would keep it simpler. Should I only generate "Push Enabled" profiles from now on -- even if i am not sure I am gonna use push (or for that matter in-app purchase)? Please give me some insight. I do not wanna do this wrong. Thanks! Jann

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• FILESTREAM/FILETABLE Clarifications for Implementation

  - by user1209734

  Recently our team was looking at FILESTREAM to expand the capabilities of our proprietary application. The main purpose of this app is managing the various PDFS, Images and documents to all of the parts we manufacture. Our ASP application uses a few third party tools to allow viewing of these files. We currently have 980GB of data on the Fileserver. We have around 200GB of Binary data in SQL Server that we would like to extract since it is not performing well hence FILESTREAM seems to be a good compromise to the two major data storage/access issues. A few things are not exactly clear to us: FILESTREAM Can or Cannot store its data on a drive that is not locally attached. We already have a File Server with a RAID 10 (1.5TB drives). This server stores all of the documents right now, would we have to move these drives to the SQL Server for FILESTREAM? That would be a tough bullet to bite since the server also is doubling as the Application Server (Two VMs on one physical server). FILETABLE stores the common metadata about the files but where is the Full Text part of it stored to allow searching of files like doc/docx? Is this separate? Are you able to freely add criteria to this to search by? If so any links to clarify would be appreciated. Can FILETABLE be referenced in another table with a foreign key? Thank you in advance EDIT: For those having these questions this web video covered everything and more in terms of explaining filestream from 2008 to 2012 and the cavets to consider (I would seriously rep him if I could): http://channel9.msdn.com/Events/TechDays/Techdays-2012-the-Netherlands/2270 In conclusion we will not be using FILESTREAM as it would be way to huge of an upsurge to accommodate for investment. EDIT 2: Update to #1 - After carefully assessing FileTable in addition to FILESTREAM we got a winning combination. We did have to move the files over to the new server (wasn't to painful since they were on the same VM).It honestly took more time to write an extraction tool to dump the binary data within SQL to the File System. Update to #2 - This was seperate but again Bob had an excellent webinar explaining this: http://channel9.msdn.com/Events/TechEd/Europe/2012/DBI411 Update to #3 - Using TFT inheritance we recycled the Docs table we had (minus the huge binary blobs) which required very little changes in our legacy apps. This was a huge upshot for the developer team.

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• How to change Jquery UI Slider handle

  - by Tom

  I want to modify the stock JQuery UI slider so that the handle has a arrow on it rather than being a square. i.e. I want to use a custom image as the handle. There are a few tutorials that do it: http://jqueryfordesigners.com/slider-gallery/ http://www.ryancoughlin.com/2008/11/04/using-the-jquery-ui-slider/ http://www.keepthewebweird.com/creating-a-nice-slider-with-jquery-ui/ But I can't get it to work. The following code results in a stationary handle image: <!DOCTYPE html> <html> <head> <link type="text/css" href="http://jqueryui.com/latest/themes/base/ui.all.css" rel="stylesheet" /> <script type="text/javascript" src="http://jqueryui.com/latest/jquery-1.3.2.js"></script> <script type="text/javascript" src="http://jqueryui.com/latest/ui/ui.core.js"></script> <script type="text/javascript" src="http://jqueryui.com/latest/ui/ui.slider.js"></script> <style type="text/css"> #myhandle {position: absolute;z-index: 100;height: 25px;width: 35px;top: auto;background: url(http://stackoverflow.com/content/img/so/vote-arrow-down.png) no-repeat;} </style> <script type="text/javascript"> $(document).ready(function(){ $("#slider").slider({handle: '#myhandle'}); }); </script> </head> <body> <div id="slider"><div id="myhandle"></div></div> </body> </html> It is as if JQuery doesn't pick up that I want to use the myhandle id for the handle. I'm wondering: Do I need a plugin for JQuery to recognise the handle option? (it is not documented in http://docs.jquery.com/UI/Slider). Or perhaps it only worked in an old version of JQuery? Any ideas?

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• facebook connect for android returns a blank login screen?

  - by jonney

  Hi, i am trying to use the old facebook connect authentication to authenticate my android client to get the necessary session id's and other credentials thats needed to start using the web service of facebook. the issue i am having is that when my android application launces and tries to load the login page for facebook, that very same login page is blank and it only displays the the facebook logo as the title of the screen. No login fields or buttons are visible leaving me nowhere to login and authenticate a user. i have tried two API's one is facebook connect api for android http://code.google.com/p/fbconnect-android/ and the other one is the official android facebook sdk that is recommended to be used instead of the previous one i have just mentioned https://github.com/facebook/facebook-android-sdk/ . please see the image below of how it looks like on my app. Here is code that uses the latest android sdk facebook: /** * Authenticate facebook network */ private void authenticateFacebook() { // TODO: move this away from this activty class into some kind of // helper/wrapper class Log.d(TAG, "Clicked on the facebook"); Facebook facebook = new Facebook(OAUTH_KEY_FACEBOOK_API); facebook.authorize(this, new AuthorizeListener()); } class AuthorizeListener implements DialogListener{ @Override public void onComplete(Bundle values) { // TODO Auto-generated method stub Log.d(TAG, "finished authorizing facebook user"); } @Override public void onFacebookError(FacebookError e) { // TODO Auto-generated method stub } @Override public void onError(DialogError e) { // TODO Auto-generated method stub } @Override public void onCancel() { // TODO Auto-generated method stub } } And a simple example of how to use it: http://developers.facebook.com/docs/guides/mobile/ My code is more or less identical to the above example. edit: i did not catch what logcat was inputing in my first attempted at my code above but their was no exceptions or warnings thrown at the time. just a blank page. i then tried it again and diddnt touch my code and what happens now is that a loading dialogue view pops up and stays their for a few minutes until the facebook windows disapears and the logcat outputs the error below: 11-18 17:26:19.913: DEBUG/Facebook-WebView(783): Webview loading URL: https://www.facebook.com/dialog/oauth?type=user_agent&redirect_uri=fbconnect%3A%2F%2Fsuccess&display=touch&client_id=e??????????????????? 11-18 17:27:01.756: DEBUG/Facebook-authorize(783): Login failed: com.kc.unity.agent.util.oauth.facebook.DialogError: The connection to the server was unsuccessful. 11-18 17:27:01.783: DEBUG/Facebook-WebView(783): Webview loading URL: https://www.facebook.com/dialog/oauth?type=user_agent&redirect_uri=fbconnect%3A%2F%2Fsuccess&display=touch&client_id=??????????????? please note that the client id i have amended for obvious reasons but the rest of the logcat is untouched

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• Compare NSArray with NSMutableArray adding delta objects to NSMutableArray

  - by Hooligancat

  I have an NSMutableArray that is populated with objects of strings. For simplicity sake we'll say that the objects are a person and each person object contains information about that person. Thus I would have an NSMutableArray that is populated with person objects: person.firstName person.lastName person.age person.height And so on. The initial source of data comes from a web server and is populated when my application loads and completes it's initialization with the server. Periodically my application polls the server for the latest list of names. Currently I am creating an NSArray of the result set, emptying the NSMutableArray and then re-populating the NSMutableArray with NSArray results before destroying the NSArray object. This seems inefficient to me on a few levels and also presents me with a problem losing table row references which I can work around, but might be creating more work for myself in doing so. The inefficiency seems to be that I should be able to compare the two arrays and end up with a filtered NSArray. I could then add the filtered set to the NSMutableArray. This would mean that I can simply append new data to the NSMutableArray instead of throwing everything out and re-populating. Conversely I would need to do the same filter in reverse to see if there are records that need removing from the NSMutableArray. Is there any method to do this in a more efficient manner? Have I overlooked something in the docs some place that refers to a simpler technique? I have a problem when I empty the NSMutableArray and re-populate in that any referencing tables lose their selected row state. I can track it and re-select it, but my theory is that using some form of compare and adding objects and removing objects instead of dealing with the whole array in one block might mean I keep my row reference (assuming the item isn't deleted of course). Any suggestions or help much appreciated. Update Would it be just as fast to do a fast enumeration over each comparing each line item as I go? It seems like an expensive operation, but with the last fast enumeration code it might be pretty efficient...

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• PostgreSQL to Data-Warehouse: Best approach for near-real-time ETL / extraction of data

  - by belvoir

  Background: I have a PostgreSQL (v8.3) database that is heavily optimized for OLTP. I need to extract data from it on a semi real-time basis (some-one is bound to ask what semi real-time means and the answer is as frequently as I reasonably can but I will be pragmatic, as a benchmark lets say we are hoping for every 15min) and feed it into a data-warehouse. How much data? At peak times we are talking approx 80-100k rows per min hitting the OLTP side, off-peak this will drop significantly to 15-20k. The most frequently updated rows are ~64 bytes each but there are various tables etc so the data is quite diverse and can range up to 4000 bytes per row. The OLTP is active 24x5.5. Best Solution? From what I can piece together the most practical solution is as follows: Create a TRIGGER to write all DML activity to a rotating CSV log file Perform whatever transformations are required Use the native DW data pump tool to efficiently pump the transformed CSV into the DW Why this approach? TRIGGERS allow selective tables to be targeted rather than being system wide + output is configurable (i.e. into a CSV) and are relatively easy to write and deploy. SLONY uses similar approach and overhead is acceptable CSV easy and fast to transform Easy to pump CSV into the DW Alternatives considered .... Using native logging (http://www.postgresql.org/docs/8.3/static/runtime-config-logging.html). Problem with this is it looked very verbose relative to what I needed and was a little trickier to parse and transform. However it could be faster as I presume there is less overhead compared to a TRIGGER. Certainly it would make the admin easier as it is system wide but again, I don't need some of the tables (some are used for persistent storage of JMS messages which I do not want to log) Querying the data directly via an ETL tool such as Talend and pumping it into the DW ... problem is the OLTP schema would need tweaked to support this and that has many negative side-effects Using a tweaked/hacked SLONY - SLONY does a good job of logging and migrating changes to a slave so the conceptual framework is there but the proposed solution just seems easier and cleaner Using the WAL Has anyone done this before? Want to share your thoughts?

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• Installing Fabric On Windows (Error No Module Called Readline)

  - by Jon

  I'm trying to use the Fabric 0.1.1 deploy tool (http://docs.fabfile.org/) on Windows and we're running into an issue with the readline module. I've been through various threads but can't seem to solve the issue. It's important because we can't deploy applications from Windows based machines. C:\Documents and Settings\dev\Desktop\deploy>fab Traceback (most recent call last): File "C:\python\Scripts\fab-script.py", line 8, in <module> load_entry_point('fabric==0.1.1', 'console_scripts', 'fab')() File "c:\python\lib\site-packages\setuptools-0.6c9-py2.6.egg\pkg_resources.py" , line 277, in load_entry_point File "c:\python\lib\site-packages\setuptools-0.6c9-py2.6.egg\pkg_resources.py" , line 2180, in load_entry_point File "c:\python\lib\site-packages\setuptools-0.6c9-py2.6.egg\pkg_resources.py" , line 1913, in load File "build\bdist.win32\egg\fabric.py", line 25, in <module> **ImportError: No module named readline** Installing the module results in: **easy_install readline** Searching for readline Reading http://pypi.python.org/simple/readline/ Reading http://www.python.org/ Best match: readline 2.6.4 Downloading http://pypi.python.org/packages/source/r/readline/readline-2.6.4.tar .gz#md5=7568e8b78f383443ba57c9afec6f4285 Processing readline-2.6.4.tar.gz Running readline-2.6.4\setup.py -q bdist_egg --dist-dir c:\docume~1\ji81b9~1.che \locals~1\temp\easy_install-pzkz1a\readline-2.6.4\egg-dist-tmp-szs2ps Traceback (most recent call last): File "C:\python\Scripts\easy_install-script.py", line 8, in <module> load_entry_point('setuptools==0.6c9', 'console_scripts', 'easy_install')() File "c:\python\lib\site-packages\setuptools-0.6c9-py2.6.egg\setuptools\comman d\easy_install.py", line 1671, in main File "c:\python\lib\site-packages\setuptools-0.6c9-py2.6.egg\setuptools\comman d\easy_install.py", line 1659, in with_ei_usage File "c:\python\lib\site-packages\setuptools-0.6c9-py2.6.egg\setuptools\comman d\easy_install.py", line 1675, in <lambda> File "c:\python\lib\distutils\core.py", line 152, in setup dist.run_commands() File "c:\python\lib\distutils\dist.py", line 975, in run_commands self.run_command(cmd) File "c:\python\lib\distutils\dist.py", line 995, in run_command cmd_obj.run() File "c:\python\lib\site-packages\setuptools-0.6c9-py2.6.egg\setuptools\comman d\easy_install.py", line 211, in run File "c:\python\lib\site-packages\setuptools-0.6c9-py2.6.egg\setuptools\comman d\easy_install.py", line 446, in easy_install File "c:\python\lib\site-packages\setuptools-0.6c9-py2.6.egg\setuptools\comman d\easy_install.py", line 476, in install_item File "c:\python\lib\site-packages\setuptools-0.6c9-py2.6.egg\setuptools\comman d\easy_install.py", line 655, in install_eggs File "c:\python\lib\site-packages\setuptools-0.6c9-py2.6.egg\setuptools\comman d\easy_install.py", line 930, in build_and_install File "c:\python\lib\site-packages\setuptools-0.6c9-py2.6.egg\setuptools\comman d\easy_install.py", line 919, in run_setup File "c:\python\lib\site-packages\setuptools-0.6c9-py2.6.egg\setuptools\sandbo x.py", line 27, in run_setup File "c:\python\lib\site-packages\setuptools-0.6c9-py2.6.egg\setuptools\sandbo x.py", line 63, in run File "c:\python\lib\site-packages\setuptools-0.6c9-py2.6.egg\setuptools\sandbo x.py", line 29, in <lambda> File "setup.py", line 93, in <module> AttributeError: 'module' object has no attribute 'symlink' Has anybody solved this issue or can anybody suggest a workaround?

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• UITableViewCell rounded corners and clip subviews

  - by Brenden

  I can't find anything anywhere(search engines, docs, here, etc) that shows how to create rounded corners (esp. in a grouped table view) on an element that also clips the subviews. I have code that properly creates a rounded rectangle out of a path with 4 arcs(the rounded corners) that has been tested in the drawRect: method in my subclassed uitableviewcell. The issue is that the subviews, which happen to be uibuttons with their internal uiimageviews, do no obey the CGContextClip() that the uitableviewcell obeys. Here is the code: - (void)drawRect:(CGRect)rect { CGContextRef context = UIGraphicsGetCurrentContext(); CGFloat radius = 12; CGFloat width = CGRectGetWidth(rect); CGFloat height = CGRectGetHeight(rect); // Make sure corner radius isn't larger than half the shorter side if (radius > width/2.0) radius = width/2.0; if (radius > height/2.0) radius = height/2.0; CGFloat minx = CGRectGetMinX(rect) + 10; CGFloat midx = CGRectGetMidX(rect); CGFloat maxx = CGRectGetMaxX(rect) - 10; CGFloat miny = CGRectGetMinY(rect); CGFloat midy = CGRectGetMidY(rect); CGFloat maxy = CGRectGetMaxY(rect); [[UIColor greenColor] set]; CGContextBeginPath(context); CGContextMoveToPoint(context, minx, midy); CGContextAddArcToPoint(context, minx, miny, midx, miny, radius); CGContextAddArcToPoint(context, maxx, miny, maxx, midy, radius); CGContextAddArcToPoint(context, maxx, maxy, midx, maxy, radius); CGContextAddArcToPoint(context, minx, maxy, minx, midy, radius); CGContextClip(context); CGContextFillRect(context, rect); [super drawRect:rect]; } Because this specific case is static(only shows in 1 specific row of buttons), I can edit the images being used for the buttons to get the desired effect. HOWEVER, I have another case that is dynamic. Specifically, a grouped table with lots of database-driven results that will show photos that may be in the first or last row with rounded corners and thus needs to be clipped). So, is it possible to create a CGContextClip() that also clips the subviews? If so, how?

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• Importing a large dataset into a database

  - by peaceful

  I'm a beginning programmer in the relevant areas to this question, so if possible, it'd be helpful to avoid assuming I know a lot already. I'm trying to import the OpenLibrary dataset into a local Postgres database. After it's imported, I plan to use it as a starting seed for a Ruby on Rails application that will include information on books. The OpenLibrary datasets are available here, in a modified JSON format: http://openlibrary.org/dev/docs/jsondump I only need very basic information for my application, much less than what is provided in the dumps. I'm only trying to get out book titles, author names, and relationships between books and authors. Below are two typical entries from their dataset, the first for an author, and the second for a book (they seem to have an entry for each edition of a book). The entries seem to lead off with a primary key, and then with a type, before including the actual JSON database dump. /a/OL2A /type/author {"name": "U. Venkatakrishna Rao", "personal_name": "U. Venkatakrishna Rao", "last_modified": {"type": "/type/datetime", "value": "2008-09-10 08:44:01.978456"}, "key": "/a/OL2A", "birth_date": "1904", "type": {"key": "/type/author"}, "id": 99, "revision": 3} /b/OL345M /type/edition {"publishers": ["Social Science Research Project, Dept. of Geography, University of Dacca"], "pagination": "ii, 54 p.", "title": "Land use in Fayadabad area", "lccn": ["sa 65000491"], "subject_place": ["East Pakistan", "Dacca region."], "number_of_pages": 54, "languages": [{"comment": "initial import", "code": "eng", "name": "English", "key": "/l/eng"}], "lc_classifications": ["S471.P162 E23"], "publish_date": "1963", "publish_country": "pk ", "key": "/b/OL345M", "authors": [{"birth_date": "1911", "name": "Nafis Ahmad", "key": "/a/OL302A", "personal_name": "Nafis Ahmad"}], "publish_places": ["Dacca, East Pakistan"], "by_statement": "[by] Nafis Ahmad and F. Karim Khan.", "oclc_numbers": ["4671066"], "contributions": ["Khan, Fazle Karim, joint author."], "subjects": ["Land use -- East Pakistan -- Dacca region."]} The size of the uncompressed dumps are enormous, about 2GB for the authors list, and 18GB for the book editions list. OpenLibrary does not provide any tools for this themselves, they provide a simple unoptimized Python script for reading in sample data (which unlike the actual dumps comes in pure JSON format), but they estimate if that was modified for use on their actual data it would take 2 months (!) to finish loading the data. How can I read this into the database? I assume I'll need to write a program to do this. What language and any guidance on how I should do it to finish in a reasonable amount of time? The only scripting language I have any experience with is Ruby.

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• how to use SQL wildcard % with Queryset extra>select?

  - by tylias

  I'm trying to add weights to search terms I'm using to filter a queryset. Using the '%' wildcard is causing me some problems. I'm using the extra() modifier to add a weight parameter to the queryset, which I will be using to inform a sort ordering. (See http://docs.djangoproject.com/en/1.1/ref/models/querysets/#extra-select-none-where-none-params-none-tables-none-order-by-none-select-params-none ) Here's the gist of the code: def viewname(request) ... exact_matchstrings="" exact_matchstrings.append("(accountprofile.first_name LIKE '" + term + "')") exact_matchstrings.append("(accountprofile.first_name LIKE '" + term + '\%' + "')") extraquerystring = " + ".join(exact_matchstrings) return_queryset = return_queryset.extra( select = { 'match_weight': extraquerystring }, ) The effect I'm going for is that if the search term matches exactly, the weight associated with the record is 2, but if the term merely starts with the search term and isn't an exact match, the weight is 1. (for example, if 'term' = 'Jon', an entry with first_name='Jon' gets a weight of 2 but an entry with an entry with first_name = 'Jonathan' gets a weight of 1.) I can test the statement in SQL and it seems to work well enough. If I make this SQL query from the mysql shell, no problem: select (first_name like "Carl") + (first_name like "Car%") from accountprofile; But trying to run it via the extra() modifier in my view code and evaluating the resulting queryset gives me the following error: Traceback (most recent call last): File "<console>", line 1, in <module> File "/usr/local/lib/python2.6/dist-packages/django/db/models/query.py", line 68, in __repr__ data = list(self[:REPR_OUTPUT_SIZE + 1]) File "/usr/local/lib/python2.6/dist-packages/django/db/models/query.py", line 83, in __len__ self._result_cache.extend(list(self._iter)) File "/usr/local/lib/python2.6/dist-packages/django/db/models/query.py", line 238, in iterator for row in self.query.results_iter(): File "/usr/local/lib/python2.6/dist-packages/django/db/models/sql/query.py", line 287, in results_iter for rows in self.execute_sql(MULTI): File "/usr/local/lib/python2.6/dist-packages/django/db/models/sql/query.py", line 2369, in execute_sql cursor.execute(sql, params) File "/usr/local/lib/python2.6/dist-packages/django/db/backends/util.py", line 22, in execute sql = self.db.ops.last_executed_query(self.cursor, sql, params) File "/usr/local/lib/python2.6/dist-packages/django/db/backends/__init__.py", line 217, in last_executed_query return smart_unicode(sql) % u_params ValueError: unsupported format character ''' (0x27) at index 309 I've tried it escaping and not escaping % wildcard but that doesn't solve the problem. Doesn't seem to affect it at all, really. Any ideas?

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• Exception when deploying a JSR 286 portlet into WebLogic+WebCenter 11g

  - by Rambaldi

  I get the following exception when deploying a JSR 286 portlet into Oracle WebLogic Server 11g (to deploy it later in Oracle WebCenter 11g): <19-ene-2010 13H32' CET> <Error> <oracle.portlet.server.containerimpl.PortletApplicationImpl> <BEA-000000> <Error al procesar el archivo "/WEB-INF/portlet.xml" en la lÝnea 6 columna 68. org.xml.sax.SAXParseException: cvc-elt.1: Cannot find the declaration of element 'portlet-app' The error message is in spanish. It means: "Error processing the file "/WEB-INF/portlet.xml at line 6 column 68" The portlet.xml of my portlet seems to be correct and I've deployed it in other portal servers. So I don't understand the error message. This is the portlet.xml of my portlet (eclipse XML validator said it was a valid XML) <?xml version="1.0" encoding="UTF-8"?> <portlet-app version="2.0" xmlns="http://java.sun.com/xml/ns/portlet/portlet-app_2_0.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/portlet/portlet-app_2_0.xsd http://java.sun.com/xml/ns/portlet/portlet-app_2_0.xsd" xmlns:dnd="http://www.denodo.com/widget/portlet/portletjsr286"> <portlet> <description>Test Inter Portlet Communication (JSR286)</description> <portlet-name>Test IPC</portlet-name> <display-name>Test IPC</display-name> <portlet-class>com.denodo.ipc.TestIPCPortlet</portlet-class> <supports> <mime-type>text/html</mime-type> <portlet-mode>VIEW</portlet-mode> </supports> <supported-locale>en</supported-locale> <resource-bundle>PortletMessages</resource-bundle> <portlet-info> <title>Test IPC</title> <short-title>Test IPC</short-title> <keywords>Test IPC,Denodo</keywords> </portlet-info> </portlet> </portlet-app> How do I deploy my portlet I convert my portlet into to a WSRP portlet by executing java -jar wsrp-predeploy.jar source EAR target EAR as explained in http://download.oracle.com/docs/cd/E12839_01/webcenter.1111/e12405/wcadm_portlet_prod.htm#CHDECJHI) I try to deploy it into WebLogic with the WebLogic Console and I get this exception. My Environment WebCenter Suite (11.1.1.2.0) + WebLogic Server (10.3.2) downloaded from the oracle.com. Default configuration S.O: Windows XP SP3 Thanks in advance for your time.

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• jBASE 4.1 Database Noobster Questions

  - by Steve Johnson

  I am a software developer with devlopment experience in C#, C++ .Net alongwith SQL Server 2005/08, Oracle and mysql. But somehow i dont get jBASE to work at Windows XP SP3 machine. My goal is setup user accounts, create database on a JBASE ainstallation, authenticate and backup/restore few table via a C++ program. And i dont need to do it with builtin backup/restore tools of jBASE. I am able to install jBASe 4.1 aling with all its accessories on my WINXPSP3 machine. I was able to run the jSlimserver and TEMENOUS server along with licnesing server. I was able to add the license key as well. But after that what i was supposed to do? i have no idea about it. The docs and online help doesnt answer a simple question of how to create a database! The google search results from the jbase site all go to the 404 Pages! Can a jBASE expert guide to the following steps: Create a jBASE database. Create users Authenticate via those users Connect to database Create tables and insert data. Connect via a C++ or C# program to connect to jBASE DB and backup/restore tables. I know that this is too much too ask but i dont get to get the JBASE system. I cant get it to work on my System somehow. Btw, jdc and jexloree doesnt seem to do anything. I have checked that enironmental variables for jBASE are setup correctly and i have verified them. There are no extra JRE or JDK installations on my system. Besides all that, only licensing client, slim server and temenous server seem to run and listen for connections and no other execuatable ever seems to work. A simple tutorial to achieve the objective will be highly appreciated. Also if anyone can point out the mistake that i have done or anything i might need to check, then please do so. I will be highly encouraged and obliged. Thanks Steve

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