Daryn Sharp created HDFS-9258:
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Summary: NN should indicate which nodes are stale
Key: HDFS-9258
URL: https://issues.apache.org/jira/browse/HDFS-9258
Project: Hadoop HDFS
Issue Type: Improvement
Components: namenode
Affects Versions: 2.0.0-alpha
Reporter: Daryn Sharp
Determining why the NN is not coming out of safemode is difficult - is it a bug
or pending block reports? If the number of nodes appears sufficient, but there
are missing blocks, it would be nice to know which nodes haven't block reported
(stale). Instead of forcing the NN to leave safemode prematurely, the SE can
first force block reports from stale nodes.
The datanode report and the web ui's node list should contain this information.
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