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From Tim Bain <>
Subject Re: Using Broker clusters,
Date Fri, 15 Jan 2016 14:13:27 GMT
Another way you could eliminate this problem (without turning off JMX) is
to change your log4j configuration to set the logging level to ERROR for  You run the risk of
not seeing errors in MBean creation due to other reasons, but in practice
the odds of that are unlikely so there's really not much of a cost, and I
think that's better than disabling JMX entirely.  Just remember to set it
back once you upgrade to a version where the bug is fixed.


On Wed, Jan 13, 2016 at 9:22 PM, Tim Bain <> wrote:

> I'd definitely expect that turning off JMX would eliminate the problem,
> since the issue happens when creating the objects JMX uses.  I'm skeptical
> that scheduler support would cause this problem if JMX support is disabled,
> and skeptical that turning it off would eliminate the problem if JMX is
> enabled, so basically I expect that useJmx is the only setting you need to
> change, not both of them.
> However, running without JMX support makes it much harder to diagnose
> issues in your broker if you experience them, so I'm not sure I'd choose to
> turn off JMX support rather that just live with a noisy log file; log lines
> that you know aren't a problem are easy to filter our or ignore, and I'd
> rather have JMX available if something starts not working, but it's your
> choice.
> Either way, I'd plan to upgrade to 5.14.0 when it's released, at which
> point you should definitely re-enable JMX support.
> Tim
> On Wed, Jan 13, 2016 at 6:25 PM, softwbc <> wrote:
>> I try the default configuration for ActiveMQ.
>> Now,I fount that the following two parameters could cause this problem:
>> useJmx="true" schedulerSupport="true"
>> When this configuration is removed,no warn has occurred. So far.
>> but, Previously I tried to change to false.
>> Thanks for your help.
>> --
>> View this message in context:
>> Sent from the ActiveMQ - User mailing list archive at

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