Requirement:
change mount point in log.dirs property and perform a rolling restart of the kafka cluster

Description:

imagine you need to substitute the mount point in log.dirs with a new one. The new mount point will contain the copied data from the old one, e.g

#old
log.dirs=/tmp/kakfa-logs-0

#new
log.dirs=/data/kakfa-logs-0

Steps:

1. create an AMQ Streams cluster (minimum 3 brokers)
2. create a topic with rf = 3 and partition = 3 (or more)
3. send tons of messages with kafka producer to the new topic
4. verify ISR and RF with kafka-topics --describe
5. stop one of the brokers
6. copy the data (cp command or similar) from the old mount point to the new mount point
7. modify log.dirs property in server.properties for the stopped broker with the new mount point
8. change the permission to the old mount point: chmod ugo-rwx
9. restart the stopped broker
10. send again tons of messages with kafka producer to the new topic
11. verify ISR and RF with kafka-topics --describe
12. verify errors on kafka logs

REPEAT the steps for the remaining brokers