Chris Nauroth created HDFS-6231:
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Summary: DFSClient hangs infinitely if using hedged reads and all
eligible datanodes die.
Key: HDFS-6231
URL: https://issues.apache.org/jira/browse/HDFS-6231
Project: Hadoop HDFS
Issue Type: Bug
Components: hdfs-client
Affects Versions: 2.4.0, 3.0.0
Reporter: Chris Nauroth
Assignee: Chris Nauroth
When using hedged reads, and all eligible datanodes for the read get flagged as
dead or ignored, then the client is supposed to refetch block locations from
the NameNode to retry the read. Instead, we've seen that the client can hang
indefinitely.
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