Daryn Sharp created HDFS-6965:
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Summary: NN continues to issue block locations for DNs with full
disks
Key: HDFS-6965
URL: https://issues.apache.org/jira/browse/HDFS-6965
Project: Hadoop HDFS
Issue Type: Bug
Components: namenode
Affects Versions: 2.0.0-alpha, 3.0.0
Reporter: Daryn Sharp
Encountered issues where DNs have less space than a full block and reject
incoming transfers. The NN continues giving out locations for these nodes for
some period of time. It does not appear to be related to the DN's cached disk
usage.
One impact is required replications are delayed when a full DN is chosen for
the pipeline. A DN cannot report a broken pipeline so the replication must
timeout (5m) before new targets are chosen.
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