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From Michael Dürig (JIRA) <j...@apache.org>
Subject [jira] [Resolved] (OAK-7853) SegmentBufferWriter not flushed after OnRC
Date Mon, 22 Oct 2018 12:28:00 GMT

     [ https://issues.apache.org/jira/browse/OAK-7853?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Michael Dürig resolved OAK-7853.
    Resolution: Fixed

Thanks for the review [~frm]

Fixed at [http://svn.apache.org/viewvc?rev=1844549&view=rev]


> SegmentBufferWriter not flushed after OnRC
> ------------------------------------------
>                 Key: OAK-7853
>                 URL: https://issues.apache.org/jira/browse/OAK-7853
>             Project: Jackrabbit Oak
>          Issue Type: Bug
>          Components: segment-tar
>            Reporter: Michael Dürig
>            Assignee: Michael Dürig
>            Priority: Major
>              Labels: candidate_oak_1_6, candidate_oak_1_8
>             Fix For: 1.10
> I suspect there is a rare case where a {{SegmentBufferWriter}} is not flushed from the
{{SegmentBufferWriterPool}}. This would happen after OnRC when a previous writer is [disposed|https://github.com/apache/jackrabbit-oak/blob/trunk/oak-segment-tar/src/main/java/org/apache/jackrabbit/oak/segment/SegmentBufferWriterPool.java#L194]
(vs. being re-used). AFAIU this currently those writers would never be flushed any more and
thus lose their transient segment when the store is shut down. This will lead to an inconsistent
store ({{SNFE}}).

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