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  1. #1
    Join Date
    Aug 2002
    Location
    Canada!
    Posts
    161

    Exclamation mysqld died and hit privvmpages barrier

    Code:
         uid  resource           held    maxheld    barrier      limit    failcnt
          2400: kmemsize        3613685   15989987   68157440   68157440          0
                lockedpages           0          0         32         32          0
                privvmpages       44933     131365     131072     131072       4632
                shmpages           2081       2737       8192       8192          0
                dummy                 0          0          0          0          0
                numproc              50        233       2560       2560          0
                physpages         10524      39869          0 2147483647          0
                vmguarpages           0          0      65536 2147483647          0
                oomguarpages      10524      39871       6144 2147483647          0
                numtcpsock           15        144      20480      20480          0
                numflock              1          6       2560       2560          0
                numpty                1          2         16         16          0
                numsiginfo            0        113       2560       2560          0
                tcpsndbuf        163228     425720    8388608   16777216          0
                tcprcvbuf        196608     577036    8388608   16777216          0
                othersockbuf      17888    1184892    8388608   16777216          0
                dgramrcvbuf           0       8380    8388608   16777216          0
                numothersock         14        236      20480      20480          0
                dcachesize            0          0   15728640   15728640          0
                numfile            1147       2511      40960      40960          0
                dummy                 0          0          0          0          0
                dummy                 0          0          0          0          0
                dummy                 0          0          0          0          0
                numiptent            93         93        128        128          0
    Code:
    [Thu Dec 14 00:10:04 2006] [notice] SIGHUP received.  Attempting to restart
    [Thu Dec 14 00:10:17 2006] [notice] Apache configured -- resuming normal operations
    [Thu Dec 14 00:10:17 2006] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
    [Thu Dec 14 00:10:17 2006] [notice] Accept mutex: sysvsem (Default: sysvsem)
    [Thu Dec 14 00:10:26 2006] [error] (12)Cannot allocate memory: fork: Unable to fork new process
    [Thu Dec 14 00:10:37 2006] [error] (12)Cannot allocate memory: fork: Unable to fork new process
    [Thu Dec 14 00:10:47 2006] [error] (12)Cannot allocate memory: fork: Unable to fork new process
    [Thu Dec 14 00:10:57 2006] [error] (12)Cannot allocate memory: fork: Unable to fork new process
    [Thu Dec 14 00:11:07 2006] [error] (12)Cannot allocate memory: fork: Unable to fork new process
    [Thu Dec 14 00:11:17 2006] [error] (12)Cannot allocate memory: fork: Unable to fork new process
    [Thu Dec 14 00:11:27 2006] [error] (12)Cannot allocate memory: fork: Unable to fork new process
    [Thu Dec 14 00:11:37 2006] [error] (12)Cannot allocate memory: fork: Unable to fork new process
    [Thu Dec 14 00:11:47 2006] [error] (12)Cannot allocate memory: fork: Unable to fork new process
    mysqld seems to have been dead from 10:30AM til about 2 o'clock PM. How would I prevent this from happening again? I checked the logs and found the above.

    I was very surprised to see the: "privvmpages 44933 131365 131072 131072 4632"

    4632 fail counts!? How do I prevent my VPS from hitting the barrier and how do add a cron to restart MySqld if it's down?

    Thanks.

  2. #2
    Join Date
    Mar 2005
    Location
    Labrador, Canada
    Posts
    988
    Quote Originally Posted by Ogg
    How do I prevent my VPS from hitting the barrier and how do add a cron to restart MySqld if it's down?
    Which VPSLink package is that?

    To prevent your VPS from hitting the barrier you can:

    - Configure services to use less RAM, possibly at the expense of performance;
    - Upgrade your VPS.

    To add a cronjob, edit root's crontab:

    [root@vps] crontab -e

    There are many references on the web outlining the syntax of what you need to enter there, also you can read the man page -- "man crontab" at the prompt.

  3. #3
    Join Date
    Aug 2002
    Location
    Canada!
    Posts
    161
    It's not at VPSLINK (at least to my knowledge).

    - Configure services to use less RAM, possibly at the expense of performance
    Which services would you suggest? I've already limited apache to 150 connections, maybe that's too high? I've tried to optimize MySQL to the best of my ability as well. Hm.

    - Upgrade your VPS.
    I hope it doesn't have to come to that, I've been on this for barely two weeks.

  4. #4
    Join Date
    Mar 2005
    Location
    Labrador, Canada
    Posts
    988
    Quote Originally Posted by Ogg
    It's not at VPSLINK (at least to my knowledge).
    Sorry, my fault. I had this forum and the VPSLink forum open at the same time and got confused about where I was.

    Which services would you suggest? I've already limited apache to 150 connections, maybe that's too high? I've tried to optimize MySQL to the best of my ability as well. Hm.
    Have you had a read through http://www.webhostingtalk.com/showthread.php?t=468168

  5. #5
    Join Date
    Aug 2002
    Location
    Canada!
    Posts
    161
    Yes, I read through the guide on WHT. I based my optimizations on what I read there but it looks like I might be getting more traffic than my settings can handle.

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