lemonldap-ng/doc/sources/admin/changesessionbackend.rst
2020-06-01 16:22:25 +02:00

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How to change session backend
=============================
LemonLDAP::NG provides a script to change session backend. This script
will help you transfer existing persistent sessions (or offline
sessions) when migrating from one backend to another, or when adding
indexes to a
:doc:`browseable session backend</browseablesessionbackend>`. It is
available in LemonLDAP::NG utilities directory (``convertSessions``).
How it works
------------
The ``convertSessions`` utility requires you to create a job
configuration file with the following content:
::
# This example migrates psessions from the default File backend to a PostgreSQL database
[sessions_from]
storageModule = Apache::Session::File
storageModuleOptions = { \\
'Directory' => '/var/lib/lemonldap-ng/psessions', \\
'LockDirectory' => '/var/lib/lemonldap-ng/psessions/lock', \\
}
# Only convert some session types
# sessionKind = Persistent, SSO
[sessions_to]
storageModule = Apache::Session::Browseable::Postgres
storageModuleOptions = { \\
'DataSource' => 'DBI:Pg:database=lemonldapdb;host=pg.example.com', \\
'UserName' => 'lemonldaplogin', \\
'Password' => 'lemonldappw', \\
'Commit' => 1, \\
'Index' => 'ipAddr _whatToTrace user', \\
'TableName' => 'psessions', \\
}
Invokation
----------
``convertSessions -c job.ini``
Options:
- ``-c``: job configuration file (mandatory)
- ``-i``: ignore errors. By default errors will stop the script
execution
- ``-d``: print debugging output