Plesk Migrator interface hangs or slows down during the migration: Undefined property: Modules_PanelMigrator_Backend_Session::$reasign

Created:

2017-08-03 13:23:36 UTC

Modified:

2017-08-16 16:39:59 UTC

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Plesk Migrator interface hangs or slows down during the migration: Undefined property: Modules_PanelMigrator_Backend_Session::$reasign

Applicable to:

  • Plesk for Linux

Symptoms

In the middle of migration, UI stops responding or becomes very slow. After that, it is not possible to enter subscriptions list .

Customer/port mapping is done during the migration process.

The following entries in /var/log/plesk/panel.log :

ERR [1] PHP Notice: Undefined property: Modules_PanelMigrator_Backend_Session::$reasign; File: /opt/psa/admin/plib/modules/panel-migrator/library/Backend/Session.php, Line: 77,/pre>
PHP Notice: Undefined index: example.com; File: /opt/psa/admin/plib/modules/panel-migrator/controllers/IndexController.php', Line: 1559

Cause

Plesk Migrator bug PMT-3887 , which will be fixed in one of the next updates.

Resolution

As a workaround, replace /usr/local/psa/admin/plib/modules/panel-migrator/library/Backend/Session.php with the patched one:

  1. Connect to the server using SSH .
  2. Apply the following custom fix:
    # wget https://support.plesk.com/hc/en-us/article_attachments/115001505814/Session.php.tar.gz
    # tar -zxvf Session.php.tar.gz
    # cp -a /usr/local/psa/admin/plib/modules/panel-migrator/library/Backend/Session.php{,.bkp}
    # mv ./Session.php /usr/local/psa/admin/plib/modules/panel-migrator/library/Backend

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