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https://issues.apache.org/jira/browse/HDFS-17564?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Haiyang Hu updated HDFS-17564:
------------------------------
Description:
If DataNode is marked as busy and contains many EC blocks, when running
decommission DataNode, when execute ErasureCodingWork#addTaskToDatanode, here
will no replication work will be generated for ecBlocksToBeReplicated, but
related metrics (such as DatanodeDescriptor#currApproxBlocksScheduled,
pendingReconstruction and needReconstruction) will still updated
.
> Erasure Coding: Fix the issue of inaccurate metrics when decommission mark
> busy DN
> ----------------------------------------------------------------------------------
>
> Key: HDFS-17564
> URL: https://issues.apache.org/jira/browse/HDFS-17564
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Haiyang Hu
> Assignee: Haiyang Hu
> Priority: Major
>
> If DataNode is marked as busy and contains many EC blocks, when running
> decommission DataNode, when execute ErasureCodingWork#addTaskToDatanode, here
> will no replication work will be generated for ecBlocksToBeReplicated, but
> related metrics (such as DatanodeDescriptor#currApproxBlocksScheduled,
> pendingReconstruction and needReconstruction) will still updated
> .
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