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From "Marcel Reutegger (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (JCR-3427) JCR-3138 may cause resource starvation
Date Tue, 18 Sep 2012 07:36:09 GMT

     [ https://issues.apache.org/jira/browse/JCR-3427?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Marcel Reutegger updated JCR-3427:
----------------------------------

    Affects Version/s: 2.4
                       2.4.1
                       2.4.2
                       2.4.3
    
> JCR-3138 may cause resource starvation
> --------------------------------------
>
>                 Key: JCR-3427
>                 URL: https://issues.apache.org/jira/browse/JCR-3427
>             Project: Jackrabbit Content Repository
>          Issue Type: Bug
>          Components: clustering, jackrabbit-core
>    Affects Versions: 2.3.2, 2.3.3, 2.3.4, 2.3.5, 2.3.6, 2.3.7, 2.4, 2.4.1, 2.4.2, 2.4.3
>            Reporter: Marcel Reutegger
>            Priority: Minor
>             Fix For: 2.5.2
>
>         Attachments: JCR-3427.patch
>
>
> The new feature introduced with JCR-3138 may cause resource starvation when enabled.
Consider a two node cluster where one of them writes continuously. The second cluster node
will start synchronizing those changes from the journal while it holds a read lock on the
journal. This lock is never released when new records are continuously available. Write operations
on second cluster node will therefore be blocked forever because it cannot get hold of the
journal lock.

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