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Posted to dev@activemq.apache.org by "Denis Urusov (JIRA)" <ji...@apache.org> on 2011/05/09 05:58:03 UTC

[jira] [Created] (AMQ-3309) 5.5.0 - kahadb indexing to be reviewed

5.5.0 - kahadb indexing to be reviewed
--------------------------------------

                 Key: AMQ-3309
                 URL: https://issues.apache.org/jira/browse/AMQ-3309
             Project: ActiveMQ
          Issue Type: Bug
          Components: Broker
    Affects Versions: 5.5.0
            Reporter: Denis Urusov


amqpersistence adapter outperforms kahadb by 4X.

re: http://activemq.2283324.n4.nabble.com/disk-IO-rate-peak-tp3504958p3507749.html


"There was some recent work on message priority support for durable 
subs which puts more pressure on the index for each message send. My 
suspicion is, that is the cause of the slow down. Unfortunately it is 
not possible to disable priority ordering at the moment. 
Can you open a jira issue to track this, we should be able to attain 
parity with the amqPersistenceAdapter for this use case. I will try 
and get some time over the next few weeks to investigate further. "

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[jira] [Closed] (AMQ-3309) 5.5.0 - kahadb indexing to be reviewed

Posted by "Timothy Bish (Closed) (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/AMQ-3309?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Timothy Bish closed AMQ-3309.
-----------------------------

       Resolution: Duplicate
    Fix Version/s: 5.6.0

Duplicated by AMQ-3467 which has been resolved.
                
> 5.5.0 - kahadb indexing to be reviewed
> --------------------------------------
>
>                 Key: AMQ-3309
>                 URL: https://issues.apache.org/jira/browse/AMQ-3309
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.5.0
>            Reporter: Denis Urusov
>             Fix For: 5.6.0
>
>
> amqpersistence adapter outperforms kahadb by 4X.
> re: http://activemq.2283324.n4.nabble.com/disk-IO-rate-peak-tp3504958p3507749.html
> "There was some recent work on message priority support for durable 
> subs which puts more pressure on the index for each message send. My 
> suspicion is, that is the cause of the slow down. Unfortunately it is 
> not possible to disable priority ordering at the moment. 
> Can you open a jira issue to track this, we should be able to attain 
> parity with the amqPersistenceAdapter for this use case. I will try 
> and get some time over the next few weeks to investigate further. "

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