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From "Dejan Bosanac (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (AMQ-3374) Long KahaDB transactions could lead to OutOfMemory
Date Wed, 22 Jun 2011 12:58:48 GMT

     [ https://issues.apache.org/jira/browse/AMQ-3374?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Dejan Bosanac resolved AMQ-3374.
--------------------------------

    Resolution: Fixed

This should now be fixed with svn revision 1138443

Default size of the transaction that will be kept in the memory is 10MB. This can be tuned
with {{maxKahaDBTxSize}} system property (in bytes)

> Long KahaDB transactions could lead to OutOfMemory
> --------------------------------------------------
>
>                 Key: AMQ-3374
>                 URL: https://issues.apache.org/jira/browse/AMQ-3374
>             Project: ActiveMQ
>          Issue Type: Bug
>    Affects Versions: 5.5.0
>            Reporter: Dejan Bosanac
>            Assignee: Dejan Bosanac
>             Fix For: 5.6.0
>
>
> Problem: all writes are kept in memory until the sync time, which for long transactions
could be a problem.
> Solution: define max transaction size and if threshold is reached keep the rest of the
writes in a temp file

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