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Date: Thu, 4 Sep 2008 08:23:52 -0700 (PDT)
From: "Rob Davies (JIRA)" <jira@apache.org>
To: dev@activemq.apache.org
Subject: [jira] Resolved: (AMQ-1557) High message frequency causes ActiveMQ
 to freeze
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     [ https://issues.apache.org/activemq/browse/AMQ-1557?page=3Dcom.atlass=
ian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rob Davies resolved AMQ-1557.
-----------------------------

    Fix Version/s: 5.2.0
       Resolution: Fixed

Resolved in 5.2

> High message frequency causes ActiveMQ to freeze
> ------------------------------------------------
>
>                 Key: AMQ-1557
>                 URL: https://issues.apache.org/activemq/browse/AMQ-1557
>             Project: ActiveMQ
>          Issue Type: Bug
>    Affects Versions: 5.0.0, 5.1.0
>         Environment: observed on Windows XP Professional SP2, Sun JDK 1.5=
.01_11, but probably affects all platforms
>            Reporter: J=C3=BCrgen Schumacher
>            Assignee: Rob Davies
>             Fix For: 5.2.0
>
>         Attachments: stresstest.zip
>
>
> ActiveMQ freezes in a test setup with very high message frequency of pers=
istent messages and multiple producers and consumers running on multiple ma=
chines:
> - Host 1: Multiple Producers send messages very fast to queue1=20
> - Host 2: Multiple Processors consume message from queue1 and send a new =
message for each consumed message to queue2, also very fast.
> - Host 3: ActiveMQ server and 1 consumer reads messages from queue2.
> With producerFlowControl enabled, the system freezes very soon (a bit mor=
e than 1000 messages).
> With producerFlowControl disabled, it seems to run longer at first, but i=
t still freezes later.
> Using transactions or not does not seem to make a difference.
> See this thread in user mailing list for more details:
> http://www.nabble.com/High-message-frequency-causes-ActiveMQ-to-freeze-to=
14919292s2354.html
> See attachment for code of test cases and the batch files to start them.

--=20
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