See if you can enable Java mission control and then use a threaded profile
of it in production. I’m REALLY happy with JMC. The license says you can
use it for development which I think is ok if you have a production box to
debug a problem and then disable it afterwards. Either way it’s very easy
t
It's possible that's the cause. It's also possible that it's not. If you
finish characterizing your problem, you should be able to tell whether it
is or not. Or you could just make the change (though I don't know whether
it's possible to configure LevelDB as your temp store provider; I assume
yo
Yes, I have non-persisting messages, but also I have configured
fileQueueCursor in my AMQ. So I have store mym messages on a disk (temp
percent used).
http://webcache.googleusercontent.com/search?q=cache:WDoRDaC3PvwJ:akuntamukkala.blogspot.com/2014/01/understanding-memory-usage-in-activemq.html+&c
Didn't you say in you SO question that you're using non-persistent
messages? What makes you think a persistence store is causing problems if
you're not persisting messages?
If you finish characterizing your problem, you should be able to narrow in
on what the problem actually is; to me that seems
I found on AMQ site http://activemq.apache.org/leveldb-store.html that
"Both KahaDB and the LevelDB store have to do periodic garbage collection
cycles to determine which log files can deleted. In the case of KahaDB, this
can be quite expensive as you increase the amount of data stored and can
cau
Yeah, I want to, but after this error occur my AMQ reboot and I have to do
all process again.
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Want to tell us what that error message was?
JVisualVM isn't the only way to take a thread dump:
https://access.redhat.com/solutions/18178
On Jul 15, 2015 2:12 AM, "Kacu" wrote:
> I use jvisualvm to do a dump, but when I have 100% CPU I can't do this,
> because I get failed message.
> I use Wind
I use jvisualvm to do a dump, but when I have 100% CPU I can't do this,
because I get failed message.
I use Windows Server 2012, where is only one instance of AcitveMQ. When I
send messages to queue, they stay there for a night, and after that I send a
few more messages and problem begin.
--
Vi
Another thing here - what else is running in the same JVM as ActiveMQ?
Also, are the messages being consumed, and are consumers keeping up with
producers?
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To elaborate on the thread dump, it would be good to know the specific
thread that is using the CPU usage. If using linux, you can run "top -H"
and that will show you the PID of each of the individual threads. You can
then find the PID with the highest cpu usage and convert it to hex. Then
look
Can you take a thread dump so we can see what the various threads are doing?
On Jul 13, 2015 2:40 AM, "Kacu" wrote:
> Hi,
>
> I have a strange situation with my AMQ 5.9.0. I describe it here:
> http://stackoverflow.com/questions/31314867/activemq-uses-100-cpu
>
> Maybe, someone knows what is wron
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