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Mysql not starting automatically

Discussion in 'General Discussion' started by bloggz, Oct 21, 2006.

  1. bloggz

    bloggz Member

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    Hi,

    I've been having problems with MySQL (4.1) not starting properly on a reboot.

    We're running:
    FC5
    WHM 10.8.0 cPanel 10.9.0-C43
    Fedora i686 - WHM X v3.1.0

    When I SSH in and 'service mysql start' it's fine, starts up and works well.

    Now, having searched the forums and found various references to chkconfig:

    Just wanted to be clear that Mysql is already list on chkconfig:

    chkconfig --list mysql

    and i've already run:

    chkconfig mysql on
    and
    chkconfig --add mysql

    Any ideas?

    (Cheers) ;)
     
    #1 bloggz, Oct 21, 2006
    Last edited: Oct 21, 2006
  2. bloggz

    bloggz Member

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    bump (help plzkthx) ;)
     
    #2 bloggz, Oct 23, 2006
  3. chirpy

    chirpy Well-Known Member

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    Do you have the mysql service correctly ticked in WHM > Service Manager (i.e. in both columns)?
     
    #3 chirpy, Oct 23, 2006
  4. bloggz

    bloggz Member

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    Yea, I just checked, both checked (Enable and Monitor), I also tried un-checking them, saving then re-checking them and saving again, reboot, no MySQL start.

    service mysql start

    and its up and running fine

    (Is it normal to have MySQL list on chkconfig as run-level 3, 4 and 5?)
     
    #4 bloggz, Oct 23, 2006
  5. chirpy

    chirpy Well-Known Member

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    Yes, runlevel 3 4 5 is correct for most application services. You'd only ever be using 3 anyway when running up applications on a web server.

    The other likelihood is if you use a virtual /tmp partition (as created using /scripts/securetmp) as this mounts /tmp as the final boot step in /etc/rc.local. If the original /tmp has the wrong permissions on it (i.e. not 1777) before /scripts/securetmp in /etc/rc.local mounts the secured /tmp partition then MySQL startup will fail.

    There's a few ways round this, choose one of them:

    1. Add the following line to /etc/rc.local at the bottom:

    /etc/init.d/mysql restart

    2. Remove /scripts/securetmp from /etc/rc.local and mount the virtual /tmp partition within fstab instead with a line like:

    /usr/tmpDSK /tmp ext3 loop,noexec,nosuid,nodev 1 0

    You'll then probably want to secure /var/tmp by symlinking it to /tmp:

    umount /var/tmp
    rm -Rfv /var/tmp
    ln -s /tmp /var/tmp

    3. The messiest would be to kill all processes accessing /tmp then umount /tmp and check the permission on the original /tmp directory


    BTW: I always do 2.
     
    #5 chirpy, Oct 23, 2006
  6. bloggz

    bloggz Member

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    Hey chirpy, thanks for that, the restart is a bit of a hack but it works fine ;)

    I had a look at the /tmp with your (excellent) ConfigServer Explorer and it was reading as 1777?

    I'm going to try and do it properly tho... (i.e. 2)
     
    #6 bloggz, Oct 23, 2006
    Last edited: Oct 23, 2006
  7. chirpy

    chirpy Well-Known Member

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    If the simply restart in rc.local works for you, then you might as well go with that.
     
    #7 chirpy, Oct 23, 2006
  8. bloggz

    bloggz Member

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    Works very well (2), thanks for the help, you are a legend ;)
     
    #8 bloggz, Oct 23, 2006
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