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Posted to oak-issues@jackrabbit.apache.org by "Marcel Reutegger (JIRA)" <ji...@apache.org> on 2015/06/30 19:48:06 UTC

[jira] [Resolved] (OAK-3023) Long running MongoDB query may block other threads

     [ https://issues.apache.org/jira/browse/OAK-3023?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Marcel Reutegger resolved OAK-3023.
-----------------------------------
       Resolution: Fixed
    Fix Version/s: 1.0.17
                   1.2.3

> Long running MongoDB query may block other threads
> --------------------------------------------------
>
>                 Key: OAK-3023
>                 URL: https://issues.apache.org/jira/browse/OAK-3023
>             Project: Jackrabbit Oak
>          Issue Type: Bug
>    Affects Versions: 1.2.2, 1.0.15
>            Reporter: Marcel Reutegger
>            Assignee: Marcel Reutegger
>              Labels: concurrency
>             Fix For: 1.2.3, 1.3.2, 1.0.17
>
>
> Most queries on MongoDB are usually rather fast and the TreeLock acquired in MongoDocumentStore (to ensure cache consistency) is released rather quickly. However there may be cases when a query is more expensive and a TreeLock is held for a long time. This may block other threads from querying MongoDB and limit concurrency.



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