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Uptime Problems

Discussion in 'General Discussion' started by Sisnetworks, Oct 16, 2008.

  1. Sisnetworks

    Sisnetworks Registered

    Aug 23, 2008
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    Even if there is no attack to server, cause of much loads, services not working.
    Last load information : 4:27PM up 4:39, 1 user, load averages: 144.22, 152.21, 153.63
    I did not change anything. there is about 300 sites but most of them are company sites,means only html. This problem came immediatly and since 4 days ago httpd is not working.i got nothing from this. Anyone have idea?

    System information:

    Processor Information
    Processor #2 Name: AMD Athlon(tm) 64 X2 Dual Core Processor 5200+

    System Information
    FreeBSD 7.0-RELEASE-p2 FreeBSD 7.0-RELEASE-p2 #0: Thu Jul 3 20:00:12 UTC 2008 root@host.domain:/usr/src/sys/i386/compile/SISNETWORKS i386

    Physical Disks
    ad4: 238475MB at ata2-master SATA300
    ad6: 238475MB at ata3-master SATA300

    Current Memory Usage
    Mem: 190M Active, 1237M Inact, 163M Wired, 80M Cache, 112M Buf, 312M Free
    Swap: 4030M Total, 45M Used, 3984M Free, 1% Inuse

    Onur KAYA
  2. Infopro

    Infopro cPanel Sr. Product Evangelist
    Staff Member

    May 20, 2003
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    Root Administrator
    Have you looked at your error logs for clues? You only need one site running a poorly coded website to slow things down for all.
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  3. rsaylor

    rsaylor Well-Known Member

    Mar 27, 2003
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    during high load:

    ps -ax

    what processes are running?

    Check apache stats, do you see the same domain over and over?

    Mailman - disable it!

    Exim configuration - enable RBL's

    Look in your /tmp for any binaries and try clearning out session data or anything else that looks odd.

    Install mytop, monitor mysql usage.

    Check your mail queue - #1 issue of high load if there are a lot of failed emails, it will try to re-send at different times. If you have more then 1,000 emails stuck in the queue remove them.

    Here is a quick and dirty script to delete all mail in the queue. I found this on google a while ago:

    exim -bpru|awk {'print $3'}|xargs exim -Mrm

    Hope this helps, dealing with load issues is no fun. We have 6 cpanel servers so we are pretty good at this :)

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