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https://issues.apache.org/jira/browse/OAK-4497?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15347927#comment-15347927
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Marcel Reutegger commented on OAK-4497:
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Regarding the patch for trunk, the change in RDBDocumentStore may result in a
NPE for {{tracker}} when the query is not on the NODES collection. At the same
location, I think the {{else}} block must be guarded with
{{NodeDocumentLocks}}. The test still fails when there is a one millisecond
sleep between the check on the tracker and marking the document up to date.
> 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
>
>
> 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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