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https://issues.apache.org/jira/browse/OAK-3494?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vikas Saurabh updated OAK-3494:
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Fix Version/s: 1.0.25
> MemoryDiffCache should also check parent paths before falling to Loader (or
> returning null)
> -------------------------------------------------------------------------------------------
>
> Key: OAK-3494
> URL: https://issues.apache.org/jira/browse/OAK-3494
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: core, mongomk
> Reporter: Vikas Saurabh
> Assignee: Marcel Reutegger
> Labels: candidate_oak_1_0, candidate_oak_1_2, performance
> Fix For: 1.3.10, 1.2.9, 1.0.25
>
> Attachments: OAK-3494-1.patch, OAK-3494-2.patch,
> OAK-3494-TestCase.patch, OAK-3494.patch
>
>
> Each entry in {{MemoryDiffCache}} is keyed with {{(path, fromRev, toRev)}}
> for the list of modified children at {{path}}. A diff calcualted by
> {{DocumentNodeStore.diffImpl}} at '/' (passively via loader) or
> {{JournalEntry.applyTo}} (actively) fill each path for which there are
> modified children (including the hierarchy)
> But, if an observer calls {{compareWithBaseState}} on a unmodified sub-tree,
> the observer will still go down to {{diffImpl}} although cached parent entry
> can be used to answer the query.
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