Hi All,
We are trying to do a backup of kafka + zookeeper data and restore the same
back for one of our application's use case.
We are taking below steps for the same,
1. Take folder contents back up of data and log directories for kafka and
zookeeper.
2. Delete the kafka zookeepers and brokers
3. Delete the data and log files.
4. Install kafka and zookeepers back with same broker IDs.
5. restore the data and log files to the same directory.
// Observation here is,old topics are not listed after the broker is up and
running.
7. Restarted kafka and zookeeper
// Observation : topics get listed but still the log files are present in the
broker log directory with empty log files.
Consumers does not work.
We see this working in one node kafka broker cluster, but the same scenario
does not work with multi node kafka cluster.
One observation with respect to leaders of partitions is that, after restore
and restart leaders of the partitions are changed.
Is it due to this the back up is not happening and we have to do reassign
partitions and restore the old partition assignment for a topic ??
Is there any better or recommended way to take the back up and restore a
kafka+zookeeper cluster ??
Any information on this front would be very useful.
Thanks in advance,
Kaushik.
