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Posted to hdfs-dev@hadoop.apache.org by "Xiaoqiao He (Jira)" <ji...@apache.org> on 2022/06/14 13:51:00 UTC
[jira] [Resolved] (HDFS-16598) Fix DataNode FsDatasetImpl lock issue without GS checks.
[ https://issues.apache.org/jira/browse/HDFS-16598?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Xiaoqiao He resolved HDFS-16598.
--------------------------------
Fix Version/s: 3.4.0
Hadoop Flags: Reviewed
Resolution: Fixed
Committed to trunk. Thanks [~xuzq_zander] for your works!
> Fix DataNode FsDatasetImpl lock issue without GS checks.
> --------------------------------------------------------
>
> Key: HDFS-16598
> URL: https://issues.apache.org/jira/browse/HDFS-16598
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: ZanderXu
> Assignee: ZanderXu
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.4.0
>
> Time Spent: 4h 50m
> Remaining Estimate: 0h
>
> org.apache.hadoop.hdfs.testPipelineRecoveryOnRestartFailure failed with the stack like:
> {code:java}
> java.io.IOException: All datanodes [DatanodeInfoWithStorage[127.0.0.1:57448,DS-1b5f7e33-a2bf-4edc-9122-a74c995a99f5,DISK]] are bad. Aborting...
> at org.apache.hadoop.hdfs.DataStreamer.handleBadDatanode(DataStreamer.java:1667)
> at org.apache.hadoop.hdfs.DataStreamer.setupPipelineInternal(DataStreamer.java:1601)
> at org.apache.hadoop.hdfs.DataStreamer.setupPipelineForAppendOrRecovery(DataStreamer.java:1587)
> at org.apache.hadoop.hdfs.DataStreamer.processDatanodeOrExternalError(DataStreamer.java:1371)
> at org.apache.hadoop.hdfs.DataStreamer.run(DataStreamer.java:674)
> {code}
> After tracing the root cause, this bug was introduced by [HDFS-16534|https://issues.apache.org/jira/browse/HDFS-16534]. Because the block GS of client may be smaller than DN when pipeline recovery failed.
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