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https://issues.apache.org/jira/browse/HDFS-10283?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15241932#comment-15241932
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Mingliang Liu commented on HDFS-10283:
--------------------------------------
Failing tests are not related as the changes are only for test case
{{o.a.h.hdfs.server.namenode.TestFSImageWithSnapshot#testSaveLoadImageWithAppending
fails intermittently}}, which passed in the pre-commit run. I also ran it
locally ~10 times and it was good.
> o.a.h.hdfs.server.namenode.TestFSImageWithSnapshot#testSaveLoadImageWithAppending
> fails intermittently
> ------------------------------------------------------------------------------------------------------
>
> Key: HDFS-10283
> URL: https://issues.apache.org/jira/browse/HDFS-10283
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: test
> Affects Versions: 2.8.0
> Reporter: Mingliang Liu
> Assignee: Mingliang Liu
> Attachments: HDFS-10283.000.patch
>
>
> The test fails with exception as following:
> {code}
> java.io.IOException: Failed to replace a bad datanode on the existing
> pipeline due to no more good datanodes being available to try. (Nodes:
> current=[DatanodeInfoWithStorage[127.0.0.1:47227,DS-dd109c14-79e5-4380-ac5e-4434cd7e25b5,DISK],
>
> DatanodeInfoWithStorage[127.0.0.1:56949,DS-6c0be75e-a78c-41b9-bfd0-7ee0cdefaa0e,DISK]],
>
> original=[DatanodeInfoWithStorage[127.0.0.1:47227,DS-dd109c14-79e5-4380-ac5e-4434cd7e25b5,DISK],
>
> DatanodeInfoWithStorage[127.0.0.1:56949,DS-6c0be75e-a78c-41b9-bfd0-7ee0cdefaa0e,DISK]]).
> The current failed datanode replacement policy is DEFAULT, and a client may
> configure this via
> 'dfs.client.block.write.replace-datanode-on-failure.policy' in its
> configuration.
> at
> org.apache.hadoop.hdfs.DataStreamer.findNewDatanode(DataStreamer.java:1162)
> at
> org.apache.hadoop.hdfs.DataStreamer.addDatanode2ExistingPipeline(DataStreamer.java:1232)
> at
> org.apache.hadoop.hdfs.DataStreamer.handleDatanodeReplacement(DataStreamer.java:1423)
> at
> org.apache.hadoop.hdfs.DataStreamer.setupPipelineInternal(DataStreamer.java:1338)
> at
> org.apache.hadoop.hdfs.DataStreamer.setupPipelineForAppendOrRecovery(DataStreamer.java:1321)
> at org.apache.hadoop.hdfs.DataStreamer.run(DataStreamer.java:599)
> {code}
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