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https://issues.apache.org/jira/browse/OAK-4862?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15604435#comment-15604435
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Michael Dürig commented on OAK-4862:
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We need to be careful here: {{MemoryNodeStore}} has never been properly tested
beyond what it is being used by other parts in Oak. In Oak itself we switched
many tests from {{MemoryNodeStore}} to {{SegmentNodeStore}} as the former
created problems for us. Specifically regarding its consistency model it might
considerably differ from the other implementations. E.g. The way {{merge()}}
rebases changes behaves AFAIR differently under load.
> Provide a MemoryNodeStoreService
> --------------------------------
>
> Key: OAK-4862
> URL: https://issues.apache.org/jira/browse/OAK-4862
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: core
> Affects Versions: 1.5.10
> Reporter: Oliver Lietz
> Assignee: Chetan Mehrotra
> Priority: Minor
> Fix For: 1.5.13
>
>
> There should be a component for {{MemoryNodeStore}} similar to
> {{SegmentNodeStoreService}} and {{DocumentNodeStoreService}} which can be
> used e.g. (but not only) in ITs to reduce disk I/O.
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