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https://issues.apache.org/jira/browse/HDFS-16509?focusedWorklogId=756869&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-756869
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ASF GitHub Bot logged work on HDFS-16509:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 14/Apr/22 08:18
Start Date: 14/Apr/22 08:18
Worklog Time Spent: 10m
Work Description: jojochuang commented on PR #4077:
URL: https://github.com/apache/hadoop/pull/4077#issuecomment-1098838363
Cherrypicked cleanly and pushed to branch-3.3.
The patch doesn't apply in branch-3.2 though (due to the renaming of
decommission manager class) and will require a new PR to resolve code conflicts.
Issue Time Tracking
-------------------
Worklog Id: (was: 756869)
Time Spent: 3h 10m (was: 3h)
> 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
> Fix For: 3.4.0
>
> Time Spent: 3h 10m
> 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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