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https://issues.apache.org/jira/browse/HDFS-16509?focusedWorklogId=756817&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-756817
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ASF GitHub Bot logged work on HDFS-16509:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 14/Apr/22 03:10
Start Date: 14/Apr/22 03:10
Worklog Time Spent: 10m
Work Description: Hexiaoqiao commented on PR #4077:
URL: https://github.com/apache/hadoop/pull/4077#issuecomment-1098665168
Committed to trunk. Thanks @cndaimin for your contributions. Thanks
@jojochuang @tomscut for your reviews.
BTW, @cndaimin would you mind to check if we need to backport to
branch-3.3/branch-3.2, Thanks.
Issue Time Tracking
-------------------
Worklog Id: (was: 756817)
Time Spent: 2h 50m (was: 2h 40m)
> Fix decommission UnsupportedOperationException: Remove unsupported
> ------------------------------------------------------------------
>
> Key: HDFS-16509
> URL: https://issues.apache.org/jira/browse/HDFS-16509
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 3.3.1, 3.3.2
> Reporter: daimin
> Assignee: daimin
> Priority: Major
> Labels: pull-request-available
> Time Spent: 2h 50m
> Remaining Estimate: 0h
>
> We encountered an "UnsupportedOperationException: Remove unsupported" error
> when some datanodes were in decommission. The reason of the exception is that
> datanode.getBlockIterator() returns an Iterator does not support remove,
> however DatanodeAdminDefaultMonitor#processBlocksInternal invokes it.remove()
> when a block not found, e.g, the file containing the block is deleted.
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