Details
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Improvement
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Status: Resolved
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Major
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Resolution: Fixed
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1.0.0
Description
Testing a 1.0.0 SCM.
I'm seeing these messages flooding SCM log file when a dead DN is detected.
2020-10-19 13:48:19,642 INFO org.apache.hadoop.hdds.scm.node.DeadNodeHandler: A dead datanode is detected. 9b27c38d-9104-491b-b76b-959dc9dd06a2{ip: 10.12.1.82, host: rhel12.ozone.local, networkLocation: /default, certSerialId: null} 2020-10-19 13:48:24,894 INFO org.apache.hadoop.hdds.scm.server.SCMBlockProtocolServer: SCM is informed by OM to delete 1000 blocks 2020-10-19 13:48:24,894 INFO org.apache.hadoop.hdds.scm.block.BlockManagerImpl: Deleting blocks 2020-10-19 13:48:24,894 INFO org.apache.hadoop.hdds.scm.block.BlockManagerImpl: Deleting blocks 2020-10-19 13:48:24,894 INFO org.apache.hadoop.hdds.scm.block.BlockManagerImpl: Deleting blocks 2020-10-19 13:48:24,894 INFO org.apache.hadoop.hdds.scm.block.BlockManagerImpl: Deleting blocks 2020-10-19 13:48:24,894 INFO org.apache.hadoop.hdds.scm.block.BlockManagerImpl: Deleting blocks 2020-10-19 13:48:24,894 INFO org.apache.hadoop.hdds.scm.block.BlockManagerImpl: Deleting blocks 2020-10-19 13:48:24,894 INFO org.apache.hadoop.hdds.scm.block.BlockManagerImpl: Deleting blocks 2020-10-19 13:48:24,895 INFO org.apache.hadoop.hdds.scm.block.BlockManagerImpl: Deleting blocks 2020-10-19 13:48:24,895 INFO org.apache.hadoop.hdds.scm.block.BlockManagerImpl: Deleting blocks 2020-10-19 13:48:24,895 INFO org.apache.hadoop.hdds.scm.block.BlockManagerImpl: Deleting blocks
SCM deletes 1000 blocks max at a time, and the "Deleting blocks" message repeats for 1000 times. Worse, it doesn't give any useful information (at the very least, it should print the block id)
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