Apache keeps going down on a Plesk server: server reached MaxRequestWorkers setting

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    Kingsley Felix

    I am tired of plesk, i inscreased this and it is still happening

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    Dan Neuhaus

    Still having the same issue on two servers despite raising MaxRequestWorkers to 1000

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    Bulat Tsydenov

    @Dan, Am I right that even after changing 'MaxRequestWorkers' to 1000 and restarting apache you still see 'server reached MaxRequestWorkers setting' errors in apache logs? Additionally, you may check this article which contains troubleshooting steps.

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    Luis Zubeldia

    for mpm_event where i can change MaxRequestWorkers value?

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    Alexandr Tumanov

    @Luis, the path is almost the same:

     

    Debian/Ubuntu /etc/apache2/mods-enabled/mpm_event.conf 

    CentOS the same file but <IfModule mpm_event_module> section.

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    Ryan Yzquierdo (Edited )

    This issue continues to be a problem, despite having these settings already (which I just verified following the instructions above). Everything has been working fine on my server for past few months since I fixed some problems after a previous Plesk update. Lo and behold, Plesk autoinstaller updated last night around 3am and I have been dealing with this problem since I got up. Frustrating that Plesk updates keep causing problems.

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    Anzhelika Khapaknysh

    @Ryan Yzquierdo,

    If you still experience any issues after the update, don't hesitate to contact our Support Team so they can thoroughly check the issue.

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    Björn

    I got the same error.

    To ward off url attacks, I wrote in php in case of evil Url

     

    sleep(99999);

    exit;

    I dropped sleep and changed it into

    exit;

    That was my problem. Now I get no maxRequestErro error any more.

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    Ivan Postnikov

    Hello Björn

    Thank you for sharing your user experience.

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    Simon Liu (Edited )

    Hi,

     

    I just checked my CentOS Apache 2.4, using Event MPM but cannot found "MaxRequestWorkers" and "ServerLimit", should I need to manually add it?  Or by default it won't show anything in the /etc/httpd/conf.modules.d/01-cgi.conf  ?

     

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    Alexey Lapshin

    Hello @Simon Liu
    In case "MaxRequestWorkers" and "ServerLimit" are missing in the file, these parameters should be added.

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    Simon Liu

    Thanks Alexey.

     

     

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    Janusz Paśkiewicz

    I had similar issue which kept coming back.

    I switched from mpm_event to mpm_prefork and it seems it is gone.

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