Prasanth Jayachandran created HIVE-16103:
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Summary: LLAP: Scheduler timeout monitor never stops
Key: HIVE-16103
URL: https://issues.apache.org/jira/browse/HIVE-16103
Project: Hive
Issue Type: Bug
Components: llap
Affects Versions: 2.2.0
Reporter: Prasanth Jayachandran
Assignee: Prasanth Jayachandran
The scheduler timeout monitor is started when node count becomes 0 and stopped
when node count becomes 1. For node count, we were relying on the paths under
llap namespace. With addition of slot znodes, every node creates 2 paths
(worker and slot). As a result, the size of the instances cache will never be 1
(always multiple of 2) which leads to condition where timeout monitor is not
stopped.
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