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https://issues.apache.org/jira/browse/HDFS-6965?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14135469#comment-14135469
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Kihwal Lee commented on HDFS-6965:
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Filed HDFS-7069 for TestMissingBlocksAlert.
+1 for the patch
> 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
> Assignee: Rushabh S Shah
> Attachments: HDFS-6965.patch
>
>
> 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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