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Posted to users@activemq.apache.org by shital <sh...@optonline.net> on 2006/08/01 17:22:35 UTC
very slow consumer cpu 100%
i have application where JMS server sends me like couple of messages per
second and i have consumer which is very slow. and eventually cpu usage
becomes 100% on consumer's machine. I am using Topic n ot queues. i have set
the prefecth size to 1 on consumer machine. what can i do to control
messages.
my JMS server is fine and its dropping messages if client can not keep up,
thats fine as these are stock prices. but how can i control cpu usage on
consumer's machine
Thanks
Shital
--
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Re: very slow consumer cpu 100%
Posted by Matt Vincent <ma...@gmail.com>.
I have the same problem. The CPU is maxed out.
Launch through Spring (with org.apache.activemq.xbean.BrokerFactoryBean) and
CPU is 100%
Launch same config through command line (./bin/activemq
xbean:../conf/my-activemq.xml) and CPU is fine (very low)
I've tried this and received the same results for both AMQ 4.1.1 and
5.0-SNAPSHOT.
I've also tried both Spring 1.2.8 and Spring 2.0 with these configs:
--------- Spring 1.2.8 ------------
<bean id="brokerFactory"
class="org.apache.activemq.xbean.BrokerFactoryBean">
<property name="config" value="classpath:/my-activemq.xml" />
<property name="start" value="true" />
</bean>
-------- Spring 2.0 --------------
<amq:broker brokerName="brokerFactory" useJmx="true" persistent="false">
<amq:managementContext >
<amq:managementContext connectorPort="1099"
jmxDomainName="org.apache.activemq"/>
</amq:managementContext>
...
</amq:broker>
I'm not sure how to read this issue, but does this
(https://issues.apache.org/activemq/browse/AMQ-1090) mean that since this
100% issue was reported in 2006, it's not a priority fix until release
5.2.0? Any temporary fixes for this?
shital wrote:
>
> yes i think my consumer can not keep up. but what can i do to control cpu
> usage ?
> I will try this sleep(..) idea and see whats happen ?
>
> Thanks for helping..
> Shital
>
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Re: very slow consumer cpu 100%
Posted by shital <sh...@optonline.net>.
yes i think my consumer can not keep up. but what can i do to control cpu
usage ?
I will try this sleep(..) idea and see whats happen ?
Thanks for helping..
Shital
--
View this message in context: http://www.nabble.com/very-slow-consumer-cpu-100--tf2034246.html#a5597280
Sent from the ActiveMQ - User forum at Nabble.com.
Re: very slow consumer cpu 100%
Posted by James Strachan <ja...@gmail.com>.
Maybe your consumer can't deal with the high rate of messages its receiving?
On 8/1/06, shital <sh...@optonline.net> wrote:
>
> i already did this. i used netbean's profiler. the main thing is server is
> sending at such high rate that client can not keep up. also on the client
> hand i am trying to update the JTable with whatever data i get.
>
> to update the table i am using SwingUtilities.invokelater(..) . if i just
> read messages and dont do anything then its looks like fine. but if i
> process the message then CPU raises ??
>
> any idea ?
> Thanks
> Shital
> --
> View this message in context: http://www.nabble.com/very-slow-consumer-cpu-100--tf2034246.html#a5597125
> Sent from the ActiveMQ - User forum at Nabble.com.
>
>
--
James
-------
http://radio.weblogs.com/0112098/
Re: very slow consumer cpu 100%
Posted by James Strachan <ja...@gmail.com>.
On 8/1/06, shital <sh...@optonline.net> wrote:
>
> i tried sleep(..) but that is not helping me, the main thing is rate is so
> high that if i put delay then i can not see Table updating.
Just throttle the rates via sleeping; so you only actually update the
table a few times a second for low CPU boxes and allow the throttle
rate to be larger for faser boxes. Given the rate and the fact that
you are writing a rich client, why is high CPU usage such a concern?
--
James
-------
http://radio.weblogs.com/0112098/
Re: very slow consumer cpu 100%
Posted by shital <sh...@optonline.net>.
i tried sleep(..) but that is not helping me, the main thing is rate is so
high that if i put delay then i can not see Table updating.
any other idea ?
Thanks
Shital
--
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Re: very slow consumer cpu 100%
Posted by Hiram Chirino <hi...@hiramchirino.com>.
HI shital, then build in delays in procesing the message on the consumer
side. i.e. after you call invokelater, do a sleep.
On 8/1/06, shital <sh...@optonline.net> wrote:
>
>
> i already did this. i used netbean's profiler. the main thing is server is
> sending at such high rate that client can not keep up. also on the client
> hand i am trying to update the JTable with whatever data i get.
>
> to update the table i am using SwingUtilities.invokelater(..) . if i just
> read messages and dont do anything then its looks like fine. but if i
> process the message then CPU raises ??
>
> any idea ?
> Thanks
> Shital
> --
> View this message in context:
> http://www.nabble.com/very-slow-consumer-cpu-100--tf2034246.html#a5597125
> Sent from the ActiveMQ - User forum at Nabble.com.
>
>
--
Regards,
Hiram
Blog: http://hiramchirino.com
Re: very slow consumer cpu 100%
Posted by shital <sh...@optonline.net>.
i already did this. i used netbean's profiler. the main thing is server is
sending at such high rate that client can not keep up. also on the client
hand i am trying to update the JTable with whatever data i get.
to update the table i am using SwingUtilities.invokelater(..) . if i just
read messages and dont do anything then its looks like fine. but if i
process the message then CPU raises ??
any idea ?
Thanks
Shital
--
View this message in context: http://www.nabble.com/very-slow-consumer-cpu-100--tf2034246.html#a5597125
Sent from the ActiveMQ - User forum at Nabble.com.
Re: very slow consumer cpu 100%
Posted by James Strachan <ja...@gmail.com>.
I've never seen this before. Could you try run your application in a
profiler to see where the CPU is being spent?
On 8/1/06, shital <sh...@optonline.net> wrote:
>
> i have application where JMS server sends me like couple of messages per
> second and i have consumer which is very slow. and eventually cpu usage
> becomes 100% on consumer's machine. I am using Topic n ot queues. i have set
> the prefecth size to 1 on consumer machine. what can i do to control
> messages.
>
> my JMS server is fine and its dropping messages if client can not keep up,
> thats fine as these are stock prices. but how can i control cpu usage on
> consumer's machine
>
> Thanks
> Shital
> --
> View this message in context: http://www.nabble.com/very-slow-consumer-cpu-100--tf2034246.html#a5596704
> Sent from the ActiveMQ - User forum at Nabble.com.
>
>
--
James
-------
http://radio.weblogs.com/0112098/