I enabled debug logs to see what was happening when AMQ could not send ACK
within 30 secs. I started the AMQ broker on 28-Mar around 17:40 and to my
surprise, I find that the server startup is still going on even now at
29-Mar 09:30 (~16 hours!!). I see a lot of following messages in the logs :
20
To improve sending/receiving of ObjectMessages I used another serialization
framework (Kryo). I was a bit surprised, because the performance gain was
not as big es expected.
- When using Kryo with ActiveMQ it improved sending/receiving message with
about factor 2,5.
- In my stand alone Java serial
For the JMX: there is a newer setting in the activemq configuration file
that may override the command-line settings; here's a fairly stock example:
Check for these and any output during broker starting indicating the
management context failed to start -- if both
Hi Tim
thanks a lot for your reply.
What are your systemLimits, especially your storeUsage and memoryUsage?
Default configuration
Why is producerFlowControl="false"? The sole purpose of
We use standalone broker, because we write our applications in PHP. And we
don't use custom plugins.
I try configure jmx for jconsole, on localhost all works well, but i can't
connect to server over vpn.
I use this manual: http://activemq.apache.org/jmx.html
And here ACTIVEMQ_SUNJMX_START variabl
Messages consumed fast, never seen more than 30 messages in queue. 90% of
time i see 0 messages in all queues and only consumed counter inreases.
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Catch this situation again. Even web-console hangs. But this time no info
even in log, only startup log info.
Maybe openjdk is not the best choice?
java -version
openjdk version "1.7.0_80"
OpenJDK Runtime Environment (build 1.7.0_80-b15)
OpenJDK 64-Bit Server VM (build 24.80-b11, mixed mode)
Or A
Keep in mind that large numbers unconsumed messages stuck in the DLQ count
as a slow consumer and will use broker memory.
Is Producer Flow Control enabled? If so, what limits are you using?
What's your heap size? And how much of it is being used right after the
broker restarts?
On Mar 27, 2016
Hi,
Is there any limit to the number of Topics that can be created on a single
broker? As per my understanding, there is no such limit and it depends on
the system in which the broker is running.
Problem observed which raised the above question :
I tried to simulate an issue which occurs in our
