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Knowledge Base

Changes to the PHP settings when using LiteSpeed Web Server and FastCGI application are not applied immediately

 
domainsextensionsfastcgilitespeedlitespeed web server

Symptoms

  • Plesk is running with an active LiteSpeed Web Server installed with the LiteSpeed extension.

  • The FastCGI PHP handler is set up at Domains > example.com > PHP Settings.

  • The PHP information page Domains > example.com > PHP Settings > View the phpinfo() displays the PHP version and/or PHP parameters different from the values at Domains > example.com > PHP Settings.

Cause

For LiteSpeed Web Server v5.3 and newer, the PHP Detached Mode was introduced (which is now the default one) - when it's active the new configuration may be applied with a delay.

Resolution

Use one of the following options:

  • Wait for the lsphp process to time out and fork again.

  • Restart the PHP Process:

    1. Log in to Plesk.

    2. Open Extensions > LiteSpeed.

    3. Click Restart Detached PHP Processes

      Note: the PHP handler will restart the next time it is requested by the server, so the configuration might not be updated immediately.

  • Kill the PHP process:

    1. Connect to the server over SSH.

    2. Manually kill the processes:

      # killall -9 lsphp

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