[Bugs] [Bug 1292751] (RHEL7) hook script for CTDB should not change Samba config

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1292751


--- Doc Text *updated* by Michael Adam <madam at redhat.com> ---
Cause: S29CTDB hook scripts modify Samba's global configuration and restart Samba when the ctdb lock volume is started or stopped. Specifically 'clustering = yes' and 'idmap backend = tdb2' are added and removed.

Consequence: This can have undesired effects. Manual changes to the smb.conf file may get overwritten. It is not reliably possible to use a custom idmap configuration. More seriously, a samba installation is either clustered or not cluster. If this changes, data access may be lost, and data corruption can happen.

Fix: Stop the S29CTDB hook scripts from changing Samba configuration and restarting Samba.

Result: Manual changes to the global section of smb.conf are safe, and data corruption is prevented.


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