I have installed impala in 10 node cluster with 6 daemons. Catelog server and State store health is healthy.
All daemons are concerning and showing "Impala Daemon Ready Check" and "The readiness of the Impala Daemon to process queries is not known. "
I checked the error details and cloudera advice is
This is an Impala Daemon health test that checks if the Impala Daemon is ready to process queries. This check usually fails if the YARN Node Manager is not available. If the YARN Node Manager goes offline, no resources can be acquired and new queries cannot be run.
This test can be configured using the Impala Daemon Ready Status Health Check and Impala Daemon Ready Status Startup Tolerance impalad monitoring settings.
I verified, all node managers are healthy and able to process MR jobs.
How can i trubleshoot this error? I tried by removing and reinstalling hive and impala but it didnt work.
Did anyone face this issue? Can please someone help me out.
Any help is appreciated.
I dont know how it get fixed.
But i stopped service and started after long time. Now no issues with the daemons.
Strange or Luck :)
I too had this issue and devs werent able to submit the query. Please respond for a solution.
Restart cannot be a solution though it solved the problem.