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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 resolved HDFS-5907.
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Resolution: Fixed
Fix Version/s: HDFS-5535 (Rolling upgrades)
Target Version/s: HDFS-5535 (Rolling upgrades)
Hadoop Flags: Reviewed
Thanks Suresh! I committed this to branch HDFS-5535 as r1568346.
> BlockPoolSliceStorage trash to handle block deletions during rolling upgrade
> ----------------------------------------------------------------------------
>
> 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
> Fix For: HDFS-5535 (Rolling upgrades)
>
> 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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