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Posted to oak-issues@jackrabbit.apache.org by "Thomas Mueller (JIRA)" <ji...@apache.org> on 2015/02/25 10:22:04 UTC

[jira] [Created] (OAK-2549) Persistent Cache: use append-only mode

Thomas Mueller created OAK-2549:
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             Summary: Persistent Cache: use append-only mode
                 Key: OAK-2549
                 URL: https://issues.apache.org/jira/browse/OAK-2549
             Project: Jackrabbit Oak
          Issue Type: Bug
            Reporter: Thomas Mueller
            Assignee: Thomas Mueller


The persistent cache mainly adds data (in some rare cases it overwrites existing entries: the list of child nodes, if more child nodes are read). Because of that, the storage backend (H2 MVStore currently) can operate in append-only mode.

This should also avoid the following problem: "IllegalStateException: Chunk ... no longer exists [1.4.185/9]". This is probably a bug in H2, where old chunks are removed too early. This error is not (yet) reproducible, but happened while testing.





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