Can I detect the completion of HDFS Rebalance kicked from Ambari WebUI on Ambari WebUI?

[#1]

We can run HDFS Rebalance (HDFS Balancer process) from Ambari WebUI and that operation is an asynchronous one, that is just after starting HDFS Rebalance, "HDFS Rebalance" operation finishes but the real Balancer process is running on the NamoNode host.

When I want to know whether the Balancer process finished or not, I can confirm by checking whether the Balancer process exists on the host or not. But this way is bothersome. (I know this is not too difficult. But bothersome a little.)

I think if I can receive some notification of the completion of the balancer process on Ambari WebUI, that is awesome.

Can I detect the completion of HDFS Rebalance invoked from Ambari WebUI on Ambari WebUI?

Or, Do I have to check manually whether the balancer process exists or not?

[#2 · Accepted solution]

Hi @Takefumi Oide ,

Unfortunately ambari will only trigger the rebalance process and Ambari-server will no longer track the balancer process once the operation is triggered .

Here is the Jira due to which ambari -server stopped tracking rebalancer process :

https://issues.apache.org/jira/browse/AMBARI-20175

Please accept the answer if it helped you.

[#3]

Thanks for responding so promptly!!!