ctdb_mutex_ceph_rados_helper — Ceph RADOS cluster mutex helper
ctdb_mutex_ceph_rados_helper can be used as a recovery lock provider for CTDB. When configured, split brain avoidance during CTDB recovery will be handled using locks against an object located in a Ceph RADOS pool. To enable this functionality, include the following line in your CTDB config file:
CTDB_RECOVERY_LOCK="!ctdb_mutex_ceph_rados_helper [Cluster] [User] [Pool] [Object]" Cluster: Ceph cluster name (e.g. ceph) User: Ceph cluster user name (e.g. client.admin) Pool: Ceph RADOS pool name Object: Ceph RADOS object name
The Ceph cluster
Cluster must be up and running,
with a configuration, and keyring file for
located in a librados default search path (e.g. /etc/ceph/).
Pool must already exist.
ctdb(7), ctdbd(1), http://ctdb.samba.org/