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https://issues.apache.org/jira/browse/HDFS-5907?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arpit Agarwal updated HDFS-5907:
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Attachment: HDFS-5907.06.patch
Thanks Suresh! I updated the test to address both points.
bq. Have you tested this with multiple storage directories on the datanode?
Yes {{MiniDFSCluster}} creates two storage directories per DN so this is
covered in unit tests.
The test case won't pass in the current branch because of an unrelated break
likely caused by merge from trunk.
> Handle block deletion requests during rolling upgrades
> ------------------------------------------------------
>
> Key: HDFS-5907
> URL: https://issues.apache.org/jira/browse/HDFS-5907
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: datanode
> Affects Versions: HDFS-5535 (Rolling upgrades)
> Reporter: Arpit Agarwal
> Assignee: Arpit Agarwal
> Attachments: HDFS-5907.01.patch, HDFS-5907.02.patch,
> HDFS-5907.04.patch, HDFS-5907.05.patch, HDFS-5907.06.patch, patch-v04-v05.diff
>
>
> DN changes when a rolling upgrade is in progress:
> # DataNode should handle block deletions by moving block files to 'trash'.
> # Block files should be restored to their original locations during a
> rollback.
> # Purge trash when the rolling upgrade is finalized.
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