PMM utility "migration_handler" raises an exception. Error code is: 1

Refers to:

  • Plesk 11.0 for Linux
  • Plesk 11.5 for Linux
  • Plesk 12.0 for Linux

Created:

2016-11-16 13:22:19 UTC

Modified:

2016-12-21 20:34:02 UTC

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PMM utility "migration_handler" raises an exception. Error code is: 1

Symptoms

Migration fails with an error message:

pmm utility 'migration_handler' raised an exception. Error code is: 1
See pmmcli.log to find out detailed information on this

Cause

This error is usually caused by backup failure on the source server.

Troubleshooting

To troubleshoot the issue, use the following steps:

  1. Upload the proper migration agent and its modules to the source server. For example, if you are transferring data from a Parallels Plesk server, you need to upload these files:

    /usr/local/psa/PMM/agents/shared/*
    /usr/local/psa/PMM/agents/PleskX/*

    Use the following command to copy the agent and its modules to the source server:

    destination ~# scp -r /usr/local/psa/PMM/agents/shared/* /usr/local/psa/PMM/agents/PleskX/* root@source:/temporary_migration_directory/
  2. Log in to the source server and go to the /temporary_migration_directory. Then, run:

    temporary_migration_directory ~# chmod 755 PleskX.pl
    temporary_migration_directory ~# ./PleskX.pl -da -co -vvvvvv >> migration.log 2>&1

You will then be able to find a more detailed error message in /temporary_migration_directory/migration.log

Check if this detailed error message matches any of the following behaviors and, if it does, follow the instructions in the corresponding articles:

115111 Migration fails with "CRITICAL PMMUtility" exception

6349 Migration fails with error: "subproc.NonzeroExitException was finished with exit code 2"

112964 Migration fails with error "Logging::error('Unable to create dump', 'fatal') called at ./PleskX.pl"

115523 Migration fails: "Unable to create dump: 'undef' value passed to XmlNode::setAttribute for 'guid' at XmlNode.pm"

213365649 Cannot perform migration: not well-formed (invalid token)

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