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https://issues.apache.org/jira/browse/HDFS-12575?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shilun Fan updated HDFS-12575:
------------------------------
Target Version/s: 3.5.0 (was: 3.4.0)
> Improve test coverage for EC related edit logs ops
> --------------------------------------------------
>
> Key: HDFS-12575
> URL: https://issues.apache.org/jira/browse/HDFS-12575
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: erasure-coding
> Affects Versions: 3.0.0-alpha4
> Reporter: Lei (Eddy) Xu
> Assignee: Sammi Chen
> Priority: Major
> Labels: hdfs-ec-3.0-nice-to-have
>
> HDFS-12569 found that we have little test coverage for edit logs ops of
> erasure coding.
> And we've seen the following bug bring down SNN in our test environments:
> {code}
> 6:42:18.177 AM ERROR FSEditLogLoader
> Encountered exception on operation AddBlockOp [path=/tmp/foo/bar,
> penultimateBlock=NULL, lastBlock=blk_1073743386_69322, RpcClientId=,
> RpcCallId=-2]
> java.lang.IllegalArgumentException: reportedBlock is not striped
> at
> com.google.common.base.Preconditions.checkArgument(Preconditions.java:88)
> at
> ....
> 6:42:18.190 AM FATAL EditLogTailer
> Unknown error encountered while tailing edits. Shutting down standby NN.
> java.io.IOException: java.lang.IllegalArgumentException: reportedBlock is not
> striped
> at
> org.apache.hadoop.hdfs.server.namenode.FSEditLogLoader.loadEditRecords(FSEditLogLoader.java:251)
> at
> org.apache.hadoop.hdfs.server.namenode.FSEditLogLoader.loadFSEdits(FSEditLogLoader.java:150)
> at
> org.apache.hadoop.hdfs.server.namenode.FSImage.loadEdits(FSImage.java:882)
> at
> org.apache.hadoop.hdfs.server.namenode.FSImage.loadEdits(FSImage.java:863)
> at
> org.apache.hadoop.hdfs.server.namenode.ha.EditLogTailer.doTailEdits(EditLogTailer.java:293)
> at
> {code}
> We should add coverage for these important edit logs, i.e., set/unset policy,
> enable/remove policies and etc are correctly persisted in edit logs, and test
> the scenarios like:
> * Restart NN
> * Replay edits after checkpoint
> * Apply edits on SNN.
> * and etc.
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