Websites are not accessible and loading forever

Created:

2016-12-12 03:44:47 UTC

Modified:

2017-08-08 13:09:25 UTC

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Websites are not accessible and loading forever

Applicable to:

  • Plesk 12.5 for Windows

Symptoms

  • Random websites are not accessible and they never can be loaded.
  • The following can be found in Event Viewer > System :

    A process serving application pool 'plesk(default)(4.0)(pool)' failed to respond to a ping. The process id was '41716'.

    Or

    A worker process '8976' serving application pool 'example.com(domain)(2.0)(pool)' failed to stop a listener channel for protocol 'http' in the allotted time.  The data field contains the error number.

    Or

    A process serving application pool 'example.com(domain)(2.0)(pool)' exceeded time limits during shut down.

Cause

Tomcat ISAPI filter was configured in IIS server-wide configuration.

Resolution

Plesk does not configure Tomcat ISAPI filter globally. If Java applications were enabled under the website from Plesk, ISAPI filter will be enabled under this website only.

Make sure that %plesk_dir%\\isapi\ omcat7\\isapi_redirect.dll does not exist in IIS > Server > ISAPI Filters .

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