[jira] [Commented] (AMQ-3374) Long KahaDB transactions could lead to OutOfMemory

["Dejan Bosanac (Commented) (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AMQ-3374?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13176156#comment-13176156 ] 

Dejan Bosanac commented on AMQ-3374:
------------------------------------

Additional fix in svn revision 1224890

Transaction size is actual number of pages we keep in memory.
                
> 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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