Condition
The downscale operation fails with the Decommission failed
error.
Cause
This issue can be caused by either of the following:
Solution
- Optional:
Back up the data disks of the failed node.
This can be done by creating
a backup of /hadoopfs/fs[***DATA VOL
NUMBER***]/kafka
.
- Access the Cloudera Manager instance managing the nodes that you want to
decommission.
- Select the Kafka service and go to
Instances.
- Select the Kafka broker you want to decommission.
- Click .
- Wait until the process is finished and the cluster is in a healthy (green)
state.
- In Management Console, navigate to the Data Hub cluster containing the node.
- Go to Hardware.
- Select the node and click the Repair (wrench) icon next
to the host group.