I was wondering about the necessity to backup (in order to restore of course) the system keyspaces of Cassandra.
My backup/restore procedure is the following:
- backup: snapshots (nodetool) + dump of keyspaces (cqlsh DESC keyspace) on all cluster nodes
- restore:
- create keyspaces (cqlsh)
- restore schema.cql of all tables of all snapshots (cqlsh)
- import tables of all snapshots (sstableloader)
With this procedure, I was wondering:
- I read that among system keyspaces, only system_schema could be usefull to be backuped/restored, are there others ?
- Since I recreate keyspaces, and reimport tables schema (cql included in snapshots for each table), is the backup/restore of the keyspace system_schema necessary ?
Thank you
