Applicable to:
- Plesk for Linux
Symptoms
-
Plesk is not accessible after an upgrade. One of the following error messages is shown in a browser:
PLESK_INFO: 504 Gateway Timeout
-
Plesk upgrade/update hangs on one of these stages:
CONFIG_TEXT: ===> Plesk database scheme upgrade has been completed
Or:
CONFIG_TEXT: ===> Cumulative upgrade of Plesk (final stage) has been completed.
-
In the output of the command "ps auxf", it is possible to find the below string or something similar that is not changing for a long time:
CONFIG_TEXT: \\_ /usr/bin/sw-engine -c /usr/local/psa/admin/conf/php.ini /usr/local/psa/admin/plib/Upgrade/upgrade.php
-
After killing this process, upgrade can be continued or it hangs again.
-
It may be not possible to login to Plesk: login page is blank.
-
When starting Plesk Installer, it hangs on one of these stages:
CONFIG_TEXT: gpg-pubkey-c105b9de-4e0fd3a3 gpg(CentOS-6 Key (CentOS 6 Official Signing Key) <c
gpg-pubkey-914bdf7e-55c05220 gpg(Plesk Team info@plesk.com)Or:
CONFIG_TEXT: Ign http://autoinstall.plesk.com all/all Translation-en
Ign http://autoinstall.plesk.com trusty/all Translation-en
Fetched 221 kB in 3s (57.1 kB/s)
Reading package lists...
ERROR: Interrupted by user
Reading package lists... -
The command "plesk repair installation" and other Plesk commands can also stuck.
Cause
This is a Plesk bug with ID PPPM-3717, which is planned to be fixed in future product updates.
Resolution
-
Connect to a Plesk server via SSH.
-
Remove temporary lock_manager files:
# rm -f /usr/local/psa/var/cache/SharedLockManagerStorage*
# rm -f /var/lock/parallels-panel-bootstrapper-running.lock -
Restart the Plesk services:
# service sw-engine restart && service sw-cp-server restart
-
Start Plesk Installer and continue the upgrade.
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