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https://issues.apache.org/jira/browse/HDDS-13440?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wei-Chiu Chuang resolved HDDS-13440.
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Resolution: Implemented
Resolving as implemented in the current repository. As noted in this issue,
HDDS-12932 already fixed the directory-metadata SnapshotDiff NPE on master.
DIRECTORY_TABLE_DEF now uses OmDirectoryInfo.getCodec(), and
SnapshotDiffManager handles directory modifications separately from key objects.
Evidence at d0949f291791c399f3e54409fcb92656a80597a4:
*
https://github.com/apache/ozone/blob/d0949f291791c399f3e54409fcb92656a80597a4/hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/codec/OMDBDefinition.java#L273
*
https://github.com/apache/ozone/blob/d0949f291791c399f3e54409fcb92656a80597a4/hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/snapshot/SnapshotDiffManager.java#L1593
This resolves the master implementation tracking; it does not claim that a
particular maintenance release received the backport.
> snapdiff operation could fail with a NullPointerException if a directory had
> metadata changes
> ---------------------------------------------------------------------------------------------
>
> Key: HDDS-13440
> URL: https://issues.apache.org/jira/browse/HDDS-13440
> Project: Apache Ozone
> Issue Type: Sub-task
> Components: Snapshot
> Reporter: Sadanand Shenoy
> Priority: Major
>
> [~sshenoy] discovered a bug where snapdiff operation could fail with a
> NullPointerException (NPE) if a directory had metadata changes — such as ACL
> updates or modification time updates — between snapshots.
>
> The bug is unknowingly fixed in master branch by HDDS-12932.
>
> Opening this Jira for posterity. Maybe we can consider including it in the
> 2.0.1 release.
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