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Thousands of postfix-queue processes

Discussion in 'Plesk 9.x for Linux Issues, Fixes, How-To' started by jacko@, Mar 8, 2010.

  1. jacko@

    jacko@ Guest

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    Hello,

    OS: CentOS release 5.4 (Final)
    Plesk: psa-9.3.0-cos5.build93091230.06 (Plesk 9.3)
    MTA: Postifx

    # ps auxw | grep /usr/lib64/plesk-9.0/postfix-queue | wc -l
    1158

    1158 postfix-queue processes running.. this doesn't seem right?

    ....
    30 32724 0.0 0.0 11520 840 ? Ss Feb18 0:00 /usr/lib64/plesk-9.0/postfix-queue 127.0.0.1 10027 before-queue
    30 32725 0.0 0.0 11516 788 ? Ss Feb18 0:00 /usr/lib64/plesk-9.0/postfix-queue 127.0.0.1 10026 before-remote
    ....

    Anyone else seeing this? This is basically a fresh install of Plesk 9.3 on Centos 5.4 (ART).

    Thanks,
    jacko
     
  2. IgorG

    IgorG Forums Analyst Staff Member

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  3. jacko@

    jacko@ Guest

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    Hello IgorG,

    I'm not seeing any "queue file write error" messages in log files. Is this the same problem?

    No errors at all in /usr/local/psa/var/log/maillog.

    Thanks,
    jacko
     
  4. IgorG

    IgorG Forums Analyst Staff Member

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    If there are no any errors in maillog and mailserver works fine why these processes disturb you?
     
  5. jacko@

    jacko@ Guest

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    Has the latest Plesk control panel implemented the postfix installation to start over 1000 postfix-queue processes? Also, over 200 spawn processes.

    Why does it bother me:

    1/ Our monitoring system normally sends us a warning if over 250 processes are running on a busy server... this is a very new server with hardly any email going to it and there is already over 1500 procs.

    2/ Don't processes take up resources? Memory, CPU time when spawning etc?

    3/ Clutters up the ps listing (not a big problem I know)

    4/ A lightly utilised server with software on it that spawns 1000s of processes usually points to a problem with the software or configuration

    So lightly utilised in fact that the following command returns no connections: netstat -tupan | grep ESTA | grep ":25"
     
  6. Adrian Garcia

    Adrian Garcia New Pleskian

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  7. jacko@

    jacko@ Guest

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    Hi Adrian,

    Thanks for your message. It appears that they have no solution for that then.

    I've got 4000 processes now, so, I suspect it's a good idea to change over to qmail and see what bugs that presents.

    Thanks,
    jacko
     
  8. IgorG

    IgorG Forums Analyst Staff Member

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    Right, problem still under developer's investigation and fix in testing stage now. I hope that fix will be ready very soon.
     
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