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From "SuoNayi (JIRA)" <>
Subject [jira] [Commented] (AMQ-4311) Spooling pending messages in the large transaction to the disk
Date Wed, 13 Feb 2013 14:14:12 GMT


SuoNayi commented on AMQ-4311:

Chri,you are right, I did miss the line code increasing reference of message and so I believe
that PFC won't block.
In fact I disabled PFC on all production brokers so memory will be exhausted by lots of pending
> Spooling pending messages in the large transaction to the disk
> --------------------------------------------------------------
>                 Key: AMQ-4311
>                 URL:
>             Project: ActiveMQ
>          Issue Type: Improvement
>          Components: Broker, Message Store
>    Affects Versions: 5.x
>            Reporter: SuoNayi
>             Fix For: 5.9.0
> 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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