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https://issues.apache.org/jira/browse/HDFS-16509?focusedWorklogId=742958&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-742958
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ASF GitHub Bot logged work on HDFS-16509:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 17/Mar/22 04:24
Start Date: 17/Mar/22 04:24
Worklog Time Spent: 10m
Work Description: cndaimin opened a new pull request #4077:
URL: https://github.com/apache/hadoop/pull/4077
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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Issue Time Tracking
-------------------
Worklog Id: (was: 742958)
Remaining Estimate: 0h
Time Spent: 10m
> 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
> Time Spent: 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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