[jira] [Updated] (AMQ-4311) Spooling pending messages in the large transaction to the disk

["Claus Ibsen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMQ-4311?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Claus Ibsen updated AMQ-4311:
-----------------------------

    Fix Version/s:     (was: Unscheduled)
                   NEEDS_REVIEWED

> Spooling pending messages in the large transaction to the disk
> --------------------------------------------------------------
>
>                 Key: AMQ-4311
>                 URL: https://issues.apache.org/jira/browse/AMQ-4311
>             Project: ActiveMQ
>          Issue Type: Improvement
>          Components: Broker, Message Store
>    Affects Versions: 5.x
>            Reporter: SuoNayi
>             Fix For: NEEDS_REVIEWED
>
>
> Currently MemoryTransactionStore is used to hold pending messages in a transaction.
> More pending messages in a transaction more memory is consumed.
> Because the message size of pending messages is not counted in usage limit before they are committed so PFC wont block producers as well and large transaction will cause broker throws OOM at last.
> Spooling pending messages in the transaction to the disk is one of solution.



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