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[FIXED BUG] Plesk autoresponder processes consume 100% CPU

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Leonid Gukhman
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Applicable to:

  • Plesk Onyx 17.8 for Linux

Symptoms

Periodically a lot of autoresponder processes appear in the process list that consume almost 100% of CPU usage:

# ps auxf | grep autoresponder | grep -v grep
popuser 3865999 99.3 0.0 103340 5556 ? R Jul20 1228:08 | | _ /usr/local/psa/handlers/hooks/autoresponder responder jdoe@example.com jdoe2@example2.com
popuser 1679947 98.8 0.0 103340 5644 ? R 13:00 166:55 | | _ /usr/local/psa/handlers/hooks/autoresponder responder jdoe3@example3.com jdoe4@example4.com

Cause

Product issue:

  • #PPPM-8987 "Auto-reply mail handler now correctly processes incoming messages without final multipart boundary."
    Fixed in:

Resolution

Please consider updating your server:

Workaround

Note: For other operating systems, please contact Plesk Technical Support.

CentOS 7 / Cloudlinux 7

  1. Connect to the server via SSH.

  2. Download the custom fix:

    # wget https://support.plesk.com/hc/en-us/article_attachments/360009397593/customfix.tar.gz

  3. Unpack the package:

    # tar -xzvf customfix.tar.gz

  4. Install the package:

    # yum install /root/root/plesk-libpoco-1.7.8.rpm

CentOS 6

  1. Connect to the server via SSH.

  2. Download the custom fix:

    # wget https://plesk.zendesk.com/hc/article_attachments/360010037534/customfix_centos6.tar.gz

  3. Unpack the package:

    # tar -xzvf customfix_centos6.tar.gz

  4. Install the package:

    # yum install /root/root/plesk-libpoco-1.7.8-1.7.8p3-0centos.6.180806.1636.x86_64.rpm

Ubuntu 16

  1. Connect to the server via SSH.

  2. Install the latest Plesk updates:

    # plesk installer update --repatch

  3. Make a backup of /opt/psa/handlers/hooks/autoresponder:

    # cp /opt/psa/handlers/hooks/autoresponder /opt/psa/handlers/hooks/autoresponder.bk

  4. Download and unzip the custom fix:

    # wget https://plesk.zendesk.com/hc/article_attachments/360011333960/ub16_fix.zip && unzip ub16_fix.zip

  5. Install the package plesk-libpoco-1.9.0:

    # dpkg -i plesk-libpoco-1.9.0_1.9.0-ubuntu.16.04.200206.1432_amd64.deb

  6. Replace the autoresponder file in the /opt/psa/handlers/hooks/ directory:

    # cp autoresponder /opt/psa/handlers/hooks/autoresponder

  7. Set the correct permissions and ownership on the autoresponder handler:

    # chmod 750 /opt/psa/handlers/hooks/autoresponder && chown root.popuser /opt/psa/handlers/hooks/autoresponder

Comments

2 comments

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  • Avatar
    Markus Hilfiker


    No package /root/plesk-libpoco-1.7.8.rpm available.
    Error: Nothing to do

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  • Avatar
    Alexey Lapshin

    Hello Markus,

    Looks like the customfix.tar.gz archive has been unpacked somewhere else than /root directory.
    you can try to determine the location of "plesk-libpoco-1.7.8.rpm" file using 'locate' or 'find' utilities, or look at the output of the command from step #3. There specified a place (relatively to the current directory) where "plesk-libpoco-1.7.8.rpm" file was unpacked.

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