Arpit Gupta created HDFS-5140:
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Summary: Too many safemode monitor threads being created in the
standby namenode
Key: HDFS-5140
URL: https://issues.apache.org/jira/browse/HDFS-5140
Project: Hadoop HDFS
Issue Type: Bug
Components: ha
Affects Versions: 2.1.0-beta
Reporter: Arpit Gupta
Assignee: Jing Zhao
Priority: Blocker
While running namenode load generator with 100 threads for 10 mins namenode was
being failed over ever 2 mins.
The standby namenode shut itself down as it ran out of memory and was not able
to create another thread.
When we searched for 'Safe mode extension entered' in the standby log it was
present 55000+ times
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