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https://issues.apache.org/jira/browse/OAK-4497?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15347968#comment-15347968
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Julian Reschke commented on OAK-4497:
-------------------------------------
{{tracker}} will always be non-null; it is set when collection == NODES, and if
the collection wasn't NODES, we wouldn't have a cached document in the first
place. -> Will improve code comments.
> RDBDocumentStore: potential race condition between update and invalidate can
> cause stale cache entries
> ------------------------------------------------------------------------------------------------------
>
> Key: OAK-4497
> URL: https://issues.apache.org/jira/browse/OAK-4497
> Project: Jackrabbit Oak
> Issue Type: Technical task
> Components: rdbmk
> Affects Versions: 1.0.31, 1.4.3, 1.2.16, 1.5.4
> Reporter: Julian Reschke
> Assignee: Julian Reschke
> Labels: candidate_oak_1_0, candidate_oak_1_2, candidate_oak_1_4
> Fix For: 1.6, 1.0.32, 1.4.4, 1.2.17
>
> Attachments: OAK-4497-1.4.diff, OAK-4497.diff, OAK-4497.diff
>
>
> The test in OAK-4489 shows that concurrency of queries and invalidations can
> cause validations to be lost, leading to stale content in the cache.
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