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  • repair broken packages-"dpkg: error: conflicting actions -f (--field) and -r (--remove)"

    - by yinon
    Ubuntu 12.04 LTS. if more information will be needed, tell me and'll give. the main problem is: tzach@tzach-pc:~$ sudo apt-get install docky [sudo] password for tzach: Reading package lists... Done Building dependency tree Reading state information... Done docky is already the newest version. You might want to run 'apt-get -f install' to correct these: The following packages have unmet dependencies: ca-certificates-java : Depends: openjdk-6-jre-headless (>= 6b16-1.6.1-2) but it is not going to be installed or java6-runtime-headless openjdk-7-jre-lib : Depends: openjdk-7-jre-headless (>= 7~b130~pre0) but it is not going to be installed E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution). tzach@tzach-pc:~$ and also: tzach@tzach-pc:~$ sudo apt-get upgrade Reading package lists... Done Building dependency tree Reading state information... Done You might want to run 'apt-get -f install' to correct these. **The following packages have unmet dependencies: ca-certificates-java : Depends: openjdk-6-jre-headless (>= 6b16-1.6.1-2) but it is not installed or java6-runtime-headless openjdk-7-jre-lib : Depends: openjdk-7-jre-headless (>= 7~b130~pre0) but it is not installed E: Unmet dependencies. Try using ******* so we tryied the guide here in messege #9: http://ubuntuforums.org/showthread.php?t=947124 we run all the first 4 commands and the last one-"sudo apt-get autoremove" gave us: tzach@tzach-pc:~$ sudo apt-get autoremove Reading package lists... Done Building dependency tree Reading state information... Done You might want to run 'apt-get -f install' to correct these. The following packages have unmet dependencies: **ca-certificates-java** : Depends: openjdk-6-jre-headless (>= 6b16-1.6.1-2) but it is not installed or java6-runtime-headless **openjdk-7-jre-lib** : Depends: openjdk-7-jre-headless (>= 7~b130~pre0) but it is not installed E: Unmet dependencies. Try using -f. so we run the last command twice: sudo dpkg --remove -force --force-remove-reinstreq ca-certificates-java and sudo dpkg --remove -force --force-remove-reinstreq openjdk-7-jre-lib but both of them gives: tzach@tzach-pc:~$ sudo dpkg --remove -force --force-remove-reinstreq ca-certificates-java [sudo] password for tzach: dpkg: error: conflicting actions -f (--field) and -r (--remove) Type dpkg --help for help about installing and deinstalling packages [*]; Use `dselect' or `aptitude' for user-friendly package management; Type dpkg -Dhelp for a list of dpkg debug flag values; Type dpkg --force-help for a list of forcing options; Type dpkg-deb --help for help about manipulating *.deb files; Options marked [*] produce a lot of output - pipe it through `less' or `more' ! EDIT FOR green7-output of "sudo apt-get -f install": tzach@tzach-pc:~$ sudo apt-get -f install [sudo] password for tzach: Reading package lists... Done Building dependency tree Reading state information... Done Correcting dependencies... Done The following extra packages will be installed: icedtea-7-jre-cacao icedtea-7-jre-jamvm java-common openjdk-7-jre-headless tzdata-java Suggested packages: default-jre equivs sun-java6-fonts ttf-dejavu-extra fonts-ipafont-gothic fonts-ipafont-mincho ttf-telugu-fonts ttf-oriya-fonts ttf-kannada-fonts ttf-bengali-fonts The following packages will be REMOVED: ttf-mscorefonts-installer The following NEW packages will be installed: icedtea-7-jre-cacao icedtea-7-jre-jamvm java-common openjdk-7-jre-headless tzdata-java 0 upgraded, 5 newly installed, 1 to remove and 355 not upgraded. 5 not fully installed or removed. Need to get 0 B/29.6 MB of archives. After this operation, 88.5 MB of additional disk space will be used. Do you want to continue [Y/n]? y debconf: DbDriver "config": /var/cache/debconf/config.dat is locked by another process: Resource temporarily unavailable dpkg: warning: there's no installed package matching ttf-mscorefonts-installer:amd64 Setting up tzdata (2012e-0ubuntu0.12.04) ... debconf: DbDriver "config": /var/cache/debconf/config.dat is locked by another process: Resource temporarily unavailable dpkg: error processing tzdata (--configure): subprocess installed post-installation script returned error exit status 1 No apport report written because MaxReports is reached already Errors were encountered while processing: tzdata E: Sub-process /usr/bin/dpkg returned an error code (1) EDIT2 FOR green7: tzach@tzach-pc:~$ sudo apt-get remove --purge tzdata [sudo] password for tzach: Reading package lists... Done Building dependency tree Reading state information... Done You might want to run 'apt-get -f install' to correct these: The following packages have unmet dependencies: ca-certificates-java : Depends: openjdk-6-jre-headless (>= 6b16-1.6.1-2) but it is not going to be installed or java6-runtime-headless libc6 : Depends: tzdata but it is not going to be installed libc6:i386 : Depends: tzdata:i386 libical0 : Depends: tzdata but it is not going to be installed openjdk-7-jre-lib : Depends: openjdk-7-jre-headless (>= 7~b130~pre0) but it is not going to be installed python-dateutil : Depends: tzdata but it is not going to be installed ubuntu-minimal : Depends: tzdata but it is not going to be installed util-linux : Depends: tzdata (>= 2006c-2) but it is not going to be installed E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution). EDIT3 FOR green7: tzach@tzach-pc:~$ sudo apt-get install openjdk-7-jre-headless [sudo] password for tzach: Reading package lists... Done Building dependency tree Reading state information... Done You might want to run 'apt-get -f install' to correct these: The following packages have unmet dependencies: openjdk-7-jre-headless : Depends: tzdata-java but it is not going to be installed Depends: java-common (>= 0.28) but it is not going to be installed Recommends: icedtea-7-jre-cacao (= 7~u3-2.1.1~pre1-1ubuntu3) but it is not going to be installed Recommends: icedtea-7-jre-jamvm (= 7~u3-2.1.1~pre1-1ubuntu3) but it is not going to be installed E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution). some things in the text also supposed to be bolded. but not critic (: Thanks for the editing! Thanks a lot for your assistance.

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  • Oracle VM RAC template - what it took

    - by wcoekaer
    In my previous posting I introduced the latest Oracle Real Application Cluster / Oracle VM template. I mentioned how easy it is to deploy a complete Oracle RAC cluster with Oracle VM. In fact, you don't need any prior knowledge at all to get a complete production-ready setup going. Here is an example... I built a 4 node RAC cluster, completely configured in just over 40 minutes - starting from import template into Oracle VM, create VMs to fully up and running Oracle RAC. And what was needed? 1 textfile with some hostnames and ip addresses and deploycluster.py. The setup is a 4 node cluster where each VM has 8GB of RAM and 4 vCPUs. The shared ASM storage in this case is 100GB, 5 x 20GB volumes. The VM names are racovm.0-racovm.3. The deploycluster script starts the VMs, verifies the configuration and sends the database cluster configuration info through Oracle VM Manager to the 4 node VMs. Once the VMs are up and running, the first VM starts the actual Oracle RAC setup inside and talks to the 3 other VMs. I did not log into any VM until after everything was completed. In fact, I connected to the database remotely before logging in at all. # ./deploycluster.py -u admin -H localhost --vms racovm.0,racovm.1,racovm.2,racovm.3 --netconfig ./netconfig.ini Oracle RAC OneCommand (v1.1.0) for Oracle VM - deploy cluster - (c) 2011-2012 Oracle Corporation (com: 26700:v1.1.0, lib: 126247:v1.1.0, var: 1100:v1.1.0) - v2.4.3 - wopr8.wimmekes.net (x86_64) Invoked as root at Sat Jun 2 17:31:29 2012 (size: 37500, mtime: Wed May 16 00:13:19 2012) Using: ./deploycluster.py -u admin -H localhost --vms racovm.0,racovm.1,racovm.2,racovm.3 --netconfig ./netconfig.ini INFO: Login password to Oracle VM Manager not supplied on command line or environment (DEPLOYCLUSTER_MGR_PASSWORD), prompting... Password: INFO: Attempting to connect to Oracle VM Manager... INFO: Oracle VM Client (3.1.1.305) protocol (1.8) CONNECTED (tcp) to Oracle VM Manager (3.1.1.336) protocol (1.8) IP (192.168.1.40) UUID (0004fb0000010000cbce8a3181569a3e) INFO: Inspecting /root/rac/deploycluster/netconfig.ini for number of nodes defined... INFO: Detected 4 nodes in: /root/rac/deploycluster/netconfig.ini INFO: Located a total of (4) VMs; 4 VMs with a simple name of: ['racovm.0', 'racovm.1', 'racovm.2', 'racovm.3'] INFO: Verifying all (4) VMs are in Running state INFO: VM with a simple name of "racovm.0" is in a Stopped state, attempting to start it...OK. INFO: VM with a simple name of "racovm.1" is in a Stopped state, attempting to start it...OK. INFO: VM with a simple name of "racovm.2" is in a Stopped state, attempting to start it...OK. INFO: VM with a simple name of "racovm.3" is in a Stopped state, attempting to start it...OK. INFO: Detected that all (4) VMs specified on command have (5) common shared disks between them (ASM_MIN_DISKS=5) INFO: The (4) VMs passed basic sanity checks and in Running state, sending cluster details as follows: netconfig.ini (Network setup): /root/rac/deploycluster/netconfig.ini buildcluster: yes INFO: Starting to send cluster details to all (4) VM(s)....... INFO: Sending to VM with a simple name of "racovm.0".... INFO: Sending to VM with a simple name of "racovm.1"..... INFO: Sending to VM with a simple name of "racovm.2"..... INFO: Sending to VM with a simple name of "racovm.3"...... INFO: Cluster details sent to (4) VMs... Check log (default location /u01/racovm/buildcluster.log) on build VM (racovm.0)... INFO: deploycluster.py completed successfully at 17:32:02 in 33.2 seconds (00m:33s) Logfile at: /root/rac/deploycluster/deploycluster2.log my netconfig.ini # Node specific information NODE1=db11rac1 NODE1VIP=db11rac1-vip NODE1PRIV=db11rac1-priv NODE1IP=192.168.1.56 NODE1VIPIP=192.168.1.65 NODE1PRIVIP=192.168.2.2 NODE2=db11rac2 NODE2VIP=db11rac2-vip NODE2PRIV=db11rac2-priv NODE2IP=192.168.1.58 NODE2VIPIP=192.168.1.66 NODE2PRIVIP=192.168.2.3 NODE3=db11rac3 NODE3VIP=db11rac3-vip NODE3PRIV=db11rac3-priv NODE3IP=192.168.1.173 NODE3VIPIP=192.168.1.174 NODE3PRIVIP=192.168.2.4 NODE4=db11rac4 NODE4VIP=db11rac4-vip NODE4PRIV=db11rac4-priv NODE4IP=192.168.1.175 NODE4VIPIP=192.168.1.176 NODE4PRIVIP=192.168.2.5 # Common data PUBADAP=eth0 PUBMASK=255.255.255.0 PUBGW=192.168.1.1 PRIVADAP=eth1 PRIVMASK=255.255.255.0 RACCLUSTERNAME=raccluster DOMAINNAME=wimmekes.net DNSIP= # Device used to transfer network information to second node # in interview mode NETCONFIG_DEV=/dev/xvdc # 11gR2 specific data SCANNAME=db11vip SCANIP=192.168.1.57 last few lines of the in-VM log file : 2012-06-02 14:01:40:[clusterstate:Time :db11rac1] Completed successfully in 2 seconds (0h:00m:02s) 2012-06-02 14:01:40:[buildcluster:Done :db11rac1] Build 11gR2 RAC Cluster 2012-06-02 14:01:40:[buildcluster:Time :db11rac1] Completed successfully in 1779 seconds (0h:29m:39s) From start_vm to completely configured : 29m:39s. The other 10m was the import template and create 4 VMs from template along with the shared storage configuration. This consists of a complete Oracle 11gR2 RAC database with ASM, CRS and the RDBMS up and running on all 4 nodes. Simply connect and use. Production ready. Oracle on Oracle.

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  • What is involved for a simple UDP game?

    - by acidzombie24
    I once tried to write a simple game with UDP in a week as a throwaway test. It went horribly. I threw it away early. The main problem i had was restoring the game state of all players/enemies/objects to an old state and fast forward the game to the point of time the player is playing (ie half a second before a jump. A little early or late can make the player miss the jump) Maybe this method is not the easiest way? i suspect it to be but i designed it wrong from the beginning and realized at the end of 2nd day. (so i didnt learn too much or wasted that much time) For myself and others, What is involved for a simple UDP game and how do i write one? Or how do i solve the prediction problem restoring to state properly. I'll mark this as CW bc i know there will be lots of helpful answers.

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  • How to design a character animation system?

    - by Andrea Benedetti
    I'm searching for suggestions and resources on the possible ways to design a character animation system. I mean a system built on top of the graphics engine (as graphics engine I use Ogre3D, that provide an animation layer), and in strict contact with the logic of the game. It's for a sports title, so the question is not easy. Edit: What I'm searching for are suggestions and resources about the action state mechines (or animation state machines), that is build on top of the animation pipeline already provided by the graphics engine. So, a state-driver animation interface for use by virtually all higher-level game code.

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  • What's going on with my wireless?

    - by Mark Scott
    The WiFi on my Acer laptop (it's a 3810TZ, with Intel Corporation Centrino Wireless-N 1000) works flawlessly on Ubuntu 11.04. On 11.10, it's continually up and down, and it fills the system log with messages such as those below. What is going on? It seems to be unable to decide which regulatory domain it's in. Despite the system configuration being quite clearly set to UK it persists in configuring itself as though it was opeating in Taiwan! Nov 22 15:34:37 MES3810 wpa_supplicant[1053]: WPA: 4-Way Handshake failed - pre-shared key may be incorrect Nov 22 15:34:37 MES3810 wpa_supplicant[1053]: CTRL-EVENT-DISCONNECTED bssid=00:50:7f:72:bf:b0 reason=15 Nov 22 15:34:37 MES3810 wpa_supplicant[1053]: CTRL-EVENT-DISCONNECTED bssid=00:00:00:00:00:00 reason=3 Nov 22 15:34:37 MES3810 kernel: [18239.240355] cfg80211: All devices are disconnected, going to restore regulatory settings Nov 22 15:34:37 MES3810 kernel: [18239.240362] cfg80211: Restoring regulatory settings Nov 22 15:34:37 MES3810 kernel: [18239.240368] cfg80211: Calling CRDA to update world regulatory domain Nov 22 15:34:37 MES3810 kernel: [18239.240408] wlan0: deauthenticating from 00:50:7f:72:bf:b0 by local choice (reason=3) Nov 22 15:34:37 MES3810 NetworkManager[875]: (wlan0): supplicant interface state: 4-way handshake - disconnected Nov 22 15:34:37 MES3810 kernel: [18239.246556] cfg80211: Ignoring regulatory request Set by core since the driver uses its own custom regulatory domain Nov 22 15:34:37 MES3810 kernel: [18239.246563] cfg80211: World regulatory domain updated: Nov 22 15:34:37 MES3810 kernel: [18239.246567] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) Nov 22 15:34:37 MES3810 kernel: [18239.246572] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) Nov 22 15:34:37 MES3810 kernel: [18239.246577] cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) Nov 22 15:34:37 MES3810 kernel: [18239.246582] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) Nov 22 15:34:37 MES3810 kernel: [18239.246587] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) Nov 22 15:34:37 MES3810 kernel: [18239.246592] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) Nov 22 15:34:37 MES3810 NetworkManager[875]: (wlan0): supplicant interface state: disconnected - scanning Nov 22 15:34:37 MES3810 wpa_supplicant[1053]: Trying to authenticate with 00:50:7f:72:bf:b0 (SSID='PoplarHouse' freq=2412 MHz) Nov 22 15:34:37 MES3810 NetworkManager[875]: (wlan0): supplicant interface state: scanning - authenticating Nov 22 15:34:37 MES3810 kernel: [18239.509877] wlan0: authenticate with 00:50:7f:72:bf:b0 (try 1) Nov 22 15:34:37 MES3810 wpa_supplicant[1053]: Trying to associate with 00:50:7f:72:bf:b0 (SSID='PoplarHouse' freq=2412 MHz) Nov 22 15:34:37 MES3810 kernel: [18239.512276] wlan0: authenticated Nov 22 15:34:37 MES3810 kernel: [18239.512615] wlan0: associate with 00:50:7f:72:bf:b0 (try 1) Nov 22 15:34:37 MES3810 NetworkManager[875]: (wlan0): supplicant interface state: authenticating - associating Nov 22 15:34:37 MES3810 kernel: [18239.516508] wlan0: RX ReassocResp from 00:50:7f:72:bf:b0 (capab=0x431 status=0 aid=1) Nov 22 15:34:37 MES3810 kernel: [18239.516514] wlan0: associated Nov 22 15:34:37 MES3810 wpa_supplicant[1053]: Associated with 00:50:7f:72:bf:b0 Nov 22 15:34:37 MES3810 kernel: [18239.529097] cfg80211: Calling CRDA for country: TW Nov 22 15:34:37 MES3810 NetworkManager[875]: (wlan0): supplicant interface state: associating - associated Nov 22 15:34:37 MES3810 kernel: [18239.535680] cfg80211: Updating information on frequency 2412 MHz for a 20 MHz width channel with regulatory rule: Nov 22 15:34:37 MES3810 kernel: [18239.535688] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) Nov 22 15:34:37 MES3810 kernel: [18239.535692] cfg80211: Updating information on frequency 2417 MHz for a 20 MHz width channel with regulatory rule: Nov 22 15:34:37 MES3810 kernel: [18239.535697] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) Nov 22 15:34:37 MES3810 kernel: [18239.535702] cfg80211: Updating information on frequency 2422 MHz for a 20 MHz width channel with regulatory rule: Nov 22 15:34:37 MES3810 kernel: [18239.535707] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) Nov 22 15:34:37 MES3810 kernel: [18239.535711] cfg80211: Updating information on frequency 2427 MHz for a 20 MHz width channel with regulatory rule: Nov 22 15:34:37 MES3810 kernel: [18239.535716] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) Nov 22 15:34:37 MES3810 kernel: [18239.535720] cfg80211: Updating information on frequency 2432 MHz for a 20 MHz width channel with regulatory rule: Nov 22 15:34:37 MES3810 kernel: [18239.535725] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) Nov 22 15:34:37 MES3810 kernel: [18239.535730] cfg80211: Updating information on frequency 2437 MHz for a 20 MHz width channel with regulatory rule: Nov 22 15:34:37 MES3810 kernel: [18239.535735] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) Nov 22 15:34:37 MES3810 kernel: [18239.535739] cfg80211: Updating information on frequency 2442 MHz for a 20 MHz width channel with regulatory rule: Nov 22 15:34:37 MES3810 kernel: [18239.535744] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) Nov 22 15:34:37 MES3810 kernel: [18239.535748] cfg80211: Updating information on frequency 2447 MHz for a 20 MHz width channel with regulatory rule: Nov 22 15:34:37 MES3810 kernel: [18239.535753] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) Nov 22 15:34:37 MES3810 kernel: [18239.535757] cfg80211: Updating information on frequency 2452 MHz for a 20 MHz width channel with regulatory rule: Nov 22 15:34:37 MES3810 kernel: [18239.535763] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) Nov 22 15:34:37 MES3810 kernel: [18239.535767] cfg80211: Updating information on frequency 2457 MHz for a 20 MHz width channel with regulatory rule: Nov 22 15:34:37 MES3810 kernel: [18239.535772] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) Nov 22 15:34:37 MES3810 kernel: [18239.535777] cfg80211: Updating information on frequency 2462 MHz for a 20 MHz width channel with regulatory rule: Nov 22 15:34:37 MES3810 kernel: [18239.535782] cfg80211: 2402000 KHz - 2472000 KHz @ KHz), (300 mBi, 2700 mBm) Nov 22 15:34:37 MES3810 kernel: [18239.535786] cfg80211: Disabling freq 2467 MHz Nov 22 15:34:37 MES3810 kernel: [18239.535789] cfg80211: Disabling freq 2472 MHz Nov 22 15:34:37 MES3810 kernel: [18239.535794] cfg80211: Regulatory domain changed to country: TW Nov 22 15:34:37 MES3810 kernel: [18239.535797] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) Nov 22 15:34:37 MES3810 kernel: [18239.535802] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm) Nov 22 15:34:37 MES3810 kernel: [18239.535807] cfg80211: (5270000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 1700 mBm) Nov 22 15:34:37 MES3810 kernel: [18239.535812] cfg80211: (5735000 KHz - 5815000 KHz @ 40000 KHz), (300 mBi, 3000 mBm) Nov 22 15:34:38 MES3810 NetworkManager[875]: (wlan0): supplicant interface state: associated - 4-way handshake Any ideas?

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  • How to have operations with character/items in binary with concrete operations?

    - by Piperoman
    I have the next problem. A item can have a lot of states: NORMAL = 0000000 DRY = 0000001 HOT = 0000010 BURNING = 0000100 WET = 0001000 COLD = 0010000 FROZEN = 0100000 POISONED= 1000000 A item can have some states at same time but not all of them Is impossible to be dry and wet at same time. If you COLD a WET item, it turns into FROZEN. If you HOT a WET item, it turns into NORMAL A item can be BURNING and POISON Etc. I have tried to set binary flags to states, and use AND to combine different states, checking before if it is possible or not to do it, or change to another status. Does there exist a concrete approach to solve this problem efficiently without having an interminable switch that checks every state with every new state? It is relatively easy to check 2 different states, but if there exists a third state it is not trivial to do.

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  • Best Practices - Dynamic Reconfiguration

    - by jsavit
    This post is one of a series of "best practices" notes for Oracle VM Server for SPARC (formerly named Logical Domains) Overview of dynamic Reconfiguration Oracle VM Server for SPARC supports Dynamic Reconfiguration (DR), making it possible to add or remove resources to or from a domain (virtual machine) while it is running. This is extremely useful because resources can be shifted to or from virtual machines in response to load conditions without having to reboot or interrupt running applications. For example, if an application requires more CPU capacity, you can add CPUs to improve performance, and remove them when they are no longer needed. You can use even use Dynamic Resource Management (DRM) policies that automatically add and remove CPUs to domains based on load. How it works (in broad general terms) Dynamic Reconfiguration is done in coordination with Solaris, which recognises a hypervisor request to change its virtual machine configuration and responds appropriately. In essence, Solaris receives a message saying "you now have 16 more CPUs numbered 16 to 31" or "8GB more RAM starting at address X" or "here's a new network or disk device - have fun with it". These actions take very little time. Solaris then can start using the new resource. In the case of added CPUs, that means dispatching processes and potentially binding interrupts to the new CPUs. For memory, Solaris adds the new memory pages to its "free" list and starts using them. Comparable actions occur with network and disk devices: they are recognised by Solaris and then used. Removing is the reverse process: after receiving the DR message to free specific CPUs, Solaris unbinds interrupts assigned to the CPUs and stops dispatching process threads. That takes very little time. primary # ldm list NAME STATE FLAGS CONS VCPU MEMORY UTIL UPTIME primary active -n-cv- SP 16 4G 1.0% 6d 22h 29m ldom1 active -n---- 5000 16 8G 0.9% 6h 59m primary # ldm set-core 5 ldom1 primary # ldm list NAME STATE FLAGS CONS VCPU MEMORY UTIL UPTIME primary active -n-cv- SP 16 4G 0.2% 6d 22h 29m ldom1 active -n---- 5000 40 8G 0.1% 6h 59m primary # ldm set-core 2 ldom1 primary # ldm list NAME STATE FLAGS CONS VCPU MEMORY UTIL UPTIME primary active -n-cv- SP 16 4G 1.0% 6d 22h 29m ldom1 active -n---- 5000 16 8G 0.9% 6h 59m Memory pages are vacated by copying their contents to other memory locations and wiping them clean. Solaris may have to swap memory contents to disk if the remaining RAM isn't enough to hold all the contents. For this reason, deallocating memory can take longer on a loaded system. Even on a lightly loaded system it took several 7 or 8 seconds to switch the domain below between 8GB and 24GB of RAM. primary # ldm set-mem 24g ldom1 primary # ldm list NAME STATE FLAGS CONS VCPU MEMORY UTIL UPTIME primary active -n-cv- SP 16 4G 0.1% 6d 22h 36m ldom1 active -n---- 5000 16 24G 0.2% 7h 6m primary # ldm set-mem 8g ldom1 primary # ldm list NAME STATE FLAGS CONS VCPU MEMORY UTIL UPTIME primary active -n-cv- SP 16 4G 0.7% 6d 22h 37m ldom1 active -n---- 5000 16 8G 0.3% 7h 7m What if the device is in use? (this is the anecdote that inspired this blog post) If CPU or memory is being removed, releasing it pretty straightforward, using the method described above. The resources are released, and Solaris continues with less capacity. It's not as simple with a network or I/O device: you don't want to yank a device out from underneath an application that might be using it. In the following example, I've added a virtual network device to ldom1 and want to take it away, even though it's been plumbed. primary # ldm rm-vnet vnet19 ldom1 Guest LDom returned the following reason for failing the operation: Resource Information ---------------------------------------------------------- ----------------------- /devices/virtual-devices@100/channel-devices@200/network@1 Network interface net1 VIO operation failed because device is being used in LDom ldom1 Failed to remove VNET instance That's what I call a helpful error message - telling me exactly what was wrong. In this case the problem is easily solved. I know this NIC is seen in the guest as net1 so: ldom1 # ifconfig net1 down unplumb Now I can dispose of it, and even the virtual switch I had created for it: primary # ldm rm-vnet vnet19 ldom1 primary # ldm rm-vsw primary-vsw9 If I had to take away the device disruptively, I could have used ldm rm-vnet -f but that could disrupt whoever was using it. It's better if that can be avoided. Summary Oracle VM Server for SPARC provides dynamic reconfiguration, which lets you modify a guest domain's CPU, memory and I/O configuration on the fly without reboot. You can add and remove resources as needed, and even automate this for CPUs by setting up resource policies. Taking things away can be more complicated than giving, especially for devices like disks and networks that may contain application and system state or be involved in a transaction. LDoms and Solaris cooperative work together to coordinate resource allocation and de-allocation in a safe and effective way. For best practices, use dynamic reconfiguration to make the best use of your system's resources.

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  • How to get the correct battery status?

    - by GUI Junkie
    At this moment, ever since I installed Ubuntu on this machine, the battery status says: not present. Looking at this answer, however, I find that /proc/acpi/battery/BAT1/info (sometimes its /proc/acpi/battery/BAT0/info, use tab complete to help) has the following info: present: yes design capacity: 4400 mAh last full capacity: 4400 mAh battery technology: rechargeable design voltage: 11100 mV design capacity warning: 300 mAh design capacity low: 132 mAh cycle count: 0 capacity granularity 1: 32 mAh capacity granularity 2: 32 mAh model number: BAT1 serial number: 11 battery type: 11 OEM info: 11 In accordance to this answer, I've checked the /proc/acpi/battery/BAT1/state file: present: yes capacity state: ok charging state: charged present rate: unknown remaining capacity: unknown present voltage: 10000 mV The acpi -b command returns: Battery 0: Unknown, 0%, rate information unavailable Any suggestions on getting the battery info updated?

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  • How to have operations with character/items on binary with concrete operations on C++?

    - by Piperoman
    I have the next problem. A item can have a lot of states: NORMAL = 0000000 DRY = 0000001 HOT = 0000010 BURNING = 0000100 WET = 0001000 COLD = 0010000 FROZEN = 0100000 POISONED= 1000000 A item can have some states at same time but not all of them Is impossible to be dry and wet at same time. If you COLD a WET item, it turns into FROZEN. If you HOT a WET item, it turns into NORMAL A item can be BURNING and POISON Etc. I have tried to set binary flags to states, and use AND to combine different states, checking before if it is possible or not to do it, or change to another status. Does there exist a concrete approach to solve this problem efficiently without having an interminable switch that checks every state with every new state? It is relatively easy to check 2 different states, but if there exists a third state it is not trivial to do.

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  • Why is this 8 puzzle unsolvable?

    - by Ashwin
    I am developing a 8 puzzle game. I went through the rules in this (see Detecting Unsolvable Puzzles) link, which tell you how to detect if an initial state is unsolvable. It says that if the number of inversions is odd, then the goal state cannot be reached and if even the goal state can be reached. Inversion is defined as Given a board, an inversion is any pair of blocks i and j where i < j but i appears after j when considering the board in row-major order (row 0, followed by row 1, and so forth). There is a 8-puzzle solver(applet) here. Choose 8-puzzle from the options. 1,0,3,2,4,5,6,7,8 and 7,0,2,8,5,3,6,4,1 As you can see both of them contain an even number of inversions. Still the program says that the puzzle is unsolvable. So is the Princeton link wrong?

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  • SOA, Governance, and Drugs

    Why is IT governance important in service oriented architecture (SOA)? IT Governance provides a framework for making appropriate decisions based on company guidelines and accepted standards. This framework also outlines each stakeholder’s responsibilities and authority when making important architectural or design decisions. Furthermore, this framework of governance defines parameters and constraints that are used to give context and perspective when making decisions. The use of governance as it applies to SOA ensures that specific design principles and patterns are used when developing and maintaining services. When governance is consistently applied systems the following benefits are achieved according to Anne Thomas Manes in 2010. Governance makes sure that services conform to standard interface patterns, common data modeling practices, and promotes the incorporation of existing system functionality by building on top of other available services across a system. Governance defines development standards based on proven design principles and patterns that promote reuse and composition. Governance provides developers a set of proven design principles, standards and practices that promote the reduction in system based component dependencies.  By following these guidelines, individual components will be easier to maintain. For me personally, I am a fan of IT governance, and feel that it valuable part of any corporate IT department. However, depending on how it is implemented can really affect the value of using IT governance.  Companies need to find a way to ensure that governance does not become extreme in its policies and procedures. I know for me personally, I would really dislike working under a completely totalitarian or laissez-faire version of governance. Developers need to be able to be creative in their designs and too much governance can really impede the design process and prevent the most optimal design from being developed. On the other hand, with no governance enforced, no standards will be followed and accepted design patterns will be ignored. I have personally had to spend a lot of time working on this particular scenario and I have found that the concept of code reuse and composition is almost nonexistent.  Based on this, too much time and money is wasted on redeveloping existing aspects of an application that already exist within the system as a whole. I think moving forward we will see a staggered form of IT governance, regardless if it is for SOA or IT in general.  Depending on the size of a company and the size of its IT department,  I can see IT governance as a layered approach in that the top layer will be defined by enterprise architects that focus on abstract concepts pertaining to high level design, general  guidelines, acceptable best practices, and recommended design patterns.  The next layer will be defined by solution architects or department managers that further expand on abstracted guidelines defined by the enterprise architects. This layer will contain further definitions as to when various design patterns, coding standards, and best practices are to be applied based on the context of the solutions that are being developed by the department. The final layer will be defined by the system designer or a solutions architect assed to a project in that they will define what design patterns will be used in a solution, naming conventions, as well as outline how a system will function based on the best practices defined by the previous layers. This layered approach allows for IT departments to be flexible in that system designers have creative leeway in designing solutions to meet the needs of the business, but they must operate within the confines of the abstracted IT governance guidelines.  A real world example of this can be seen in the United States as it pertains to governance of the people in that the US government defines rules and regulations in the abstract and then the state governments take these guidelines and applies them based on the will of the people in each individual state. Furthermore, the county or city governments are the ones that actually enforce these rules based on how they are interpreted by local community.  To further define my example, the United States government defines that marijuana is illegal. Each individual state has the option to determine this regulation as it wishes in that the state of Florida determines that all uses of the drug are illegal, but the state of California legally allows the use of marijuana for medicinal purposes only. Based on these accepted practices each local government enforces these rules in that a police officer will arrest anyone in the state of Florida for having this drug on them if they walk down the street, but in California if a person has a medical prescription for the drug they will not get arrested.  REFERENCESThomas Manes, Anne. (2010). Understanding SOA Governance: http://www.soamag.com/I40/0610-2.php

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  • Unstable Wifi and Spontaneous Low-graphic Error with Pavilion DV4

    - by Constant Dean
    I've been having numerous problems with connectivity through WiFi. It had been working for a few days and now it doesn't. On top of that around 40% of every time I turn on the laptop it shows "System running in low-graphics" error and I'm unable to view the desktop (sometimes not even able to access terminal), therefore having to manually power-down until it finally works. I use Ubuntu 12.10. nm-tool NetworkManager Tool State: connected (global) - Device: eth0 [Wired connection 1] ------------------------------------------- Type: Wired Driver: r8169 State: connected Default: yes HW Address: 84:34:97:6B:2E:D7 Capabilities: Carrier Detect: yes Speed: 10 Mb/s Wired Properties Carrier: on IPv4 Settings: Address: 192.168.1.10 Prefix: 24 (255.255.255.0) Gateway: 192.168.1.1 DNS: 192.168.1.1 DNS: 68.237.161.12 - Device: wlan0 ---------------------------------------------------------------- Type: 802.11 WiFi Driver: rt2800pci State: unavailable Default: no HW Address: 68:94:23:50:A5:D9 Capabilities: Wireless Properties WEP Encryption: yes WPA Encryption: yes WPA2 Encryption: yes Wireless Access Points

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  • when should a database table be broken into multiple tables with relations?

    - by GSto
    I have an application that needs to store client data, and part of that is some data about their employer as well. Assuming that a client can only have one employer, and that the chance of people having identical employer data is slim to none, which schema would make more sense to use? Schema 1 Client Table: ------------------- id int name varchar(255), email varchar(255), address varchar(255), city varchar(255), state char(2), zip varchar(16), employer_name varchar(255), employer_phone varchar(255), employer_address varchar(255), employer_city varchar(255), employer_state char(2), employer_zip varchar(16) **Schema 2** Client Table ------------------ id int name varchar(255), email varchar(255), address varchar(255), city varchar(255), state char(2), zip varchar(16), Employer Table --------------------- id int name varchar(255), phone varchar(255), address varchar(255), city varchar(255), state char(2), zip varchar(16) patient_id int Part of me thinks that since are clearly two different 'objects' in the real world, seperating them out into two different tables makes sense. However, since a client will always have an employer, I'm also not seeing any real benefits to seperating them out, and it would make querying data about clients more complex. Is there any benefit / reason for creating two tables in a situation like this one instead of one?

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  • How can I refactor my code to use fewer singletons?

    - by fish
    I started a component based, networked game (so far only working on the server). I know why singletons can be bad, but I can't think of another way to implement the same thing. So far I have: A GameState singleton (for managing the global state of the game, i.e. pre-game, running, exiting). A World singleton, which is the root entity for my entity graph An EntityFactory A ComponentFactory I'm thinking about adding a "MessageDispatcher" so individual components can subscribe to network messages. The factories do not have state, so I suppose they aren't so bad. However, the others do have global state, which is asking for trouble. How can I refactor my code so it uses fewer singletons?

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  • CSS Rotation & IE: absolute positioning seems to break IE

    - by user263900
    I'm trying to rotate a variety of text blocks so they are vertically oriented, and position them in very specific locations on a diagram which will be previewed and then printed. CSS rotates the text very nicely in IE, FF, even Opera. But when I try to position a rotated element, IE 7 & 8 (not worried about 6) breaks completely and the element stays in its original location. Any way around this? I really need to-the-pixel control of where these labels are located. HTML <div class="content rotate"> <div id="Div1" class="txtblock">Ardvark Avacado<br />Awkward</div> <div id="Div2" class="txtblock">Brownies<br />Bacteria Brussel Sprouts</div> </div> CSS div.content { position: relative; width: 300px; height: 300px; margin: 30px; border-top: black 4px solid; border-right: blue 4px solid; border-bottom: black 4px dashed; border-left: blue 4px dashed; } .rotate { -webkit-transform: rotate(-90deg); -moz-transform: rotate(-90deg); -o-transform: rotate(-90deg); filter: progid:DXImageTransform.Microsoft.BasicImage(rotation=3); } .txtblock { width: auto; position: absolute; } #Div1 { left:44px; top:70px; border:red 3px solid; } #Div2 { left:13px; top:170px; border:purple 3px solid; }

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  • PHP alternating colors

    - by Jordan Pagaduan
    $dbc = mysql_connect('localhost','root','') or die (mysql_error()); mysql_select_db('payroll') or die (mysql_error()); $sql = "SELECT * FROM employee ORDER BY employee_id DESC"; $result = mysql_query($sql); while($row = mysql_fetch_array($result)) { echo " <tr> <td style=\"padding-left: 20px; border-bottom: 1px solid #999; border-right: 1px solid #999;\">".$row['first_name']." ".$row['last_name']."</td> <td style=\"text-align: center; border-bottom: 1px solid #999; border-right: 1px solid #999; padding-top: 2px ; padding-bottom: 3px ;\"><input type=\"button\" name=\"edit\" value=\"Edit\" class=\"selbtn\">&nbsp;<input type=\"button\" name=\"delete\" value=\"Delete\" class=\"selbtn\"></td> </tr> "; } I wanted to add an alternating color in the loop. what code should I add?

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  • "Outward" border-radius in css?

    - by MaxMackie
    Currently, the links at the top of my website look like this: However, I am trying to "round" the bottom edges of the buttons to make it look like they are coming out of the page and into the ribbon at the top. I am aware that you can hack it and add a "separator" div with rounded corners between each entry, but this would be difficult to do seeing at the borders used are not all from the same div. Also, it wouldn't be easy seeing as my buttons are very close to each other. The css for the "button": .button { border-top: 3px solid #A1C1BE; border-left: 3px solid #A1C1BE; border-right: 3px solid #A1C1BE; border-bottom: 0px; padding: 5px 8px 5px 8px; margin: 0 0 -9px 0; border-radius: 5px 5px 0 0; font-size: 12px; font-family: 'PT Sans', sans-serif; background-color: #f8f8ff; color: #484848; } css for the "ribbon": #top-wrapper { border-bottom: 5px solid #A1C1BE; width: 100%; background-color: #59554E; padding: 10px 0 0 0; color: #C0C0A8; } As you can see, the thicker border belongs to the ribbon which stretches the length of the webpage, whereas the thinner blue border is part of the button.

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  • Fill parent container

    - by manix
    After several hours of design battle I come to you for a hand. I am building a website for a night club as you can see. I can't get stretch the centered area (bordered by yellow color) to the bottom of the page where the footer start (the footer is the green top-bordered div). This happends because the content is not enought to fill the rest of heigh. This is my css html, body{ height: 100%; margin: 0 auto; } #container{ height: auto !important; height: 100%; margin: 0 auto -50px; /* as #footer height */ min-height: 100%; text-align: center; border: 5px solid blue; } #centered-container{ width: 950px; margin: 0 auto; text-align: left; border: 5px solid yellow; } #body-container{ border: 5px solid red; } #footer, .footer{ height: 50px; } #footer{ text-align: center; border-top: 5px solid green; } And this is my html markup <body> <div id="container"> <!-- BLUE BORDER --> <div id="centered-container"> <!-- YELLOW BORDER --> <div id="body-container"> <!-- RED BORDER --> </div> </div> <div class="footer"></div> <!-- GREEN BORDER --> </div> <div id="footer"></div> </body> Expected behaviour: Additional facts - The colored borders is just for debugging porpuses

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  • How to Alphabetize a CSS file in Vim

    - by Kev
    I get a CSS file: div#header h1 { z-index: 101; color: #000; position: relative; line-height: 24px; margin-right: 48px; border-bottom: 1px solid #dedede; font-size: 18px; } div#header h2 { z-index: 101; color: #000; position: relative; line-height: 24px; margin-right: 48px; border-bottom: 1px solid #dedede; font-size: 18px; } I want to Alphabetize lines between the {...} div#header h1 { border-bottom: 1px solid #dedede; color: #000; font-size: 18px; line-height: 24px; margin-right: 48px; position: relative; z-index: 101; } div#header h2 { border-bottom: 1px solid #dedede; color: #000; font-size: 18px; line-height: 24px; margin-right: 48px; position: relative; z-index: 101; } I map F7 to do it nmap <F7> /{/+1<CR>vi{:sort<CR> But I need to press F7 over and over again to get the work done. If the CSS file is big, It's time-consuming & easily get bored. I want to get the cmds piped. So that, I only press F7 once! Any idea? thanks!

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  • Intel® Core™2 Duo Desktop Processor vs Intel® Core™ i3 Desktop Processor?

    - by metal gear solid
    Intel® Core™2 Duo Desktop Processor vs Intel® Core™ i3 Desktop Processor? Which CPU is better to buy ? Intel® Core™ i3-530 Processor (4M Cache, 2.93 GHz) (it supports DDR3 also) or Intel® Core™2 Duo Processor E7500 (3M Cache, 2.93 GHz, 1066 MHz FSB) (it supports DDR2 only ) Although I do not play games on my PC but I need good performance in Adobe Photoshop, Watching Full HD Movies. I need good performance in Multitasking. Along with any of these CPU I would purchase 2 GB x 2 stick of RAM. and I will use Windows 7. and I will use Microsoft VPC images also with MS Virtual PC.

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  • I'm confuse about these 2 statements about performance of 32 bit application on 64 bit Windows 7....

    - by metal gear solid
    Running some 32 bit applications on a 64 bit OS could actually be slower. The additional overheads in running 32 bit software in 64 bit mode could cause a slight degradation in performance. It will take some time for 64 bit software to become the norm. Source: http://www.w7forums.com/windows-7-64-bit-vs-32-bit-t484.html That depends. If you're working with large files or running applications that consume a great deal of memory, then 64-bit Windows will typically give you a slight performance advantage over 32-bit Windows running on identical hardware. This is true even when using 32-bit applications. Source: http://www.infoworld.com/d/windows/32-bit-windows-7-or-64-bit-windows-7-145?page=0,3 Which is true? If i go for 64 bit Windows 7 then will i feel more performance (Compare to 32 bit windows 7) of 3 years back purchased Adobe photoshop (I think it would be a 32 bit application) and some of other 32 bit applications ?

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