Show Table of Contents
9.8.3. Restoring the Cluster
Note
The restore process restores an entire cluster to a previous state.
This is not intended to restore a single node. Because all data are replicate between all nodes, it is simpler and safer to remove a failed node and install a new one than it is to attempt to restore the node.
Important
Every step must be performed on every node in the cluster.
- Shut down every node in the storage cluster. Run the stop command on every storage machine:
[root@server ~]# serverRoot/jon-server-3.2.GA/bin/rhqctl.sh stop --storage
- Remove the
commit_log/directory for each node.[root@server ~]# rm * /opt/jon/rhq-data/data/commit_log/*
- Delete all files in the
metrics_indexdirectory, except for the snapshot files.[root@server ~]# rm /opt/jon/rhq-data/data/data/rhq/metrics_index/*.*
- Copy all files from the desired snapshot directory into the
metrics_indexdirectory.[root@server ~]# cp /opt/jon/rhq-data/data/data/rhq/metrics_index/snapshots/timestamp/* /opt/jon/rhq-data/data/data/rhq/metrics_index
- Restart each storage node.
[root@server ~]# serverRoot/jon-server-3.2.GA/bin/rhqctl start --storage
Where did the comment section go?
Red Hat's documentation publication system recently went through an upgrade to enable speedier, more mobile-friendly content. We decided to re-evaluate our commenting platform to ensure that it meets your expectations and serves as an optimal feedback mechanism. During this redesign, we invite your input on providing feedback on Red Hat documentation via the discussion platform.