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From drvillo <f.viv...@gmail.com>
Subject Re: performance degradation
Date Fri, 12 Jan 2007 14:12:18 GMT

I'm using head, rev. 49007.


James.Strachan wrote:
> 
> Which version are you using?
> 
> On 1/12/07, drvillo <f.vivoli@gmail.com> wrote:
>>
>> Hi James
>> I've just ended some testing with mysql.
>> Throughput has moved from 30 msg/sec to almost 300 (niice),
>> but I've started to see the following messages:
>>
>> [.0.1:58512] INFO  org.apache.activemq.broker.region.PrefetchSubscription
>> -
>> Could not correlate acknowledgment with dispatched message: MessageAck
>> {commandId = 300079, responseRequired = false, ackType = 2, consumerId =
>> ID:villomac.local-58504-1168608802249-3:1:-1:2, firstMessageId =
>> ID:villomac.local-58504-1168608802249-3:4:10388:1:1, lastMessageId =
>> ID:villomac.local-58504-1168608802249-3:4:10388:1:1, destination =
>> queue://queue2, transactionId =
>> TX:ID:villomac.local-58504-1168608802249-3:1:99999, messageCount = 1}
>>
>>
>> The setup is the same, with the only difference of the datasource...
>> does it make any sense? Or should I just ignore them?
>>
>> FYI, I'm using DUPS_OK_ACKNOWLEDGE.
>>
>> Anyway thanks, now I'll test it with hsqldb.
>> Cheers
>> Francesco
>>
>> James.Strachan wrote:
>> >
>> > On 1/12/07, drvillo <f.vivoli@gmail.com> wrote:
>> >>
>> >> HI James
>> >>
>> >> no I haven't tried, since my specs require to have all embedded, but
>> if
>> >> it's
>> >> for isolating the problem I can try.
>> >> Do you think hsqldb would do better?
>> >
>> > I don't think so but by all means try it if you like. I've never
>> > really considered hsqldb as a 'real' database for massive amounts of
>> > data ;) I figured folks just used it for testing.
>> >
>> > If nothing else, trying mysql / postgresql or some other external
>> > database (preferably on the same box) and it would at least narrow
>> > down the problem. I've heard reports of Derby hogging RAM and slowing
>> > down with large databases.
>> >
>> > --
>> >
>> > James
>> > -------
>> > http://radio.weblogs.com/0112098/
>> >
>> >
>>
>> --
>> View this message in context:
>> http://www.nabble.com/performance-degradation-tf2925875.html#a8298638
>> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>>
>>
> 
> 
> -- 
> 
> James
> -------
> http://radio.weblogs.com/0112098/
> 
> 

-- 
View this message in context: http://www.nabble.com/performance-degradation-tf2925875.html#a8298938
Sent from the ActiveMQ - User mailing list archive at Nabble.com.


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