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From Gaurav Sharma <>
Subject Re: Connection to Broker within an Application Server
Date Fri, 20 Jul 2012 22:11:24 GMT
That's pretty good volume without pooling the connexn factory. I don't have numbers just yet
but it will be within an order of magnitude of that. Mind sharing what message store you are
using for persistence and the broker topology.

Sent from my iPhone

On Jul 20, 2012, at 12:13, Jeremy Levy <> wrote:

> Thanks again for the quick response.  That's good info. What volume of
> messages are you processing? I'm doing about 25 million a day.
> Jeremy
> On Fri, Jul 20, 2012 at 2:54 PM, Gaurav Sharma
> <>wrote:
>> Connection factory is thread-safe, so, a single instance should be fine.
>> Pooled connection factory should help greatly. One other optimization I
>> added was to keep a concurrent LRU cache of DestinationViewMBean keyed off
>> of destination name because I am heavily relying on JMX for destination
>> lookups. That, in conjunction with a single instance of BrokerViewMBean,
>> has so far worked well for me. I am still working on productionizing the
>> config and will be doing some perf-testing to benchmark the config. My
>> service users have very high throughput requirements (along with message
>> durability), so, I have had to carefully plan the broker topology (current
>> setup: multi-master/slave brokers with db message store). I have still not
>> figured out if it there is an out of the box config to shard the
>> activemq_msgs schema along with keeping a single activemq_locks table per
>> every broker master. Hopefully, someone else with a high performance
>> persistent configuration can share their experience and config.
>> On Fri, Jul 20, 2012 at 11:06 AM, Jeremy Levy <> wrote:
>>> Thanks Gaurav-
>>> I'll give the Pooled Factory a try.  What do you think about keeping once
>>> instance of the connection factory around statically?  I've played with
>>> async sending with mixed results.
>>> Jeremy
>>> On Thu, Jul 19, 2012 at 7:53 PM, Gaurav Sharma
>>> <>wrote:
>>>> You might wanna use the PooledConnectionFactory wrapper with the
>>>> ActiveMQConnectionFactory. That's what I switched to too. If you have a
>>>> listener, you will have to leave the session open as well until msg
>>>> delivery. I am using mysql as the msg-store and nio connector transport
>>> to
>>>> the broker. Also, dep on your use case, try to turn on async sending if
>>>> possible. There are many perf knobs that can be turned.
>>>> Sent from my iPhone
>>>> On Jul 19, 2012, at 16:32, Jeremy Levy <> wrote:
>>>>> I suspect that the way I am currently producing messages within my
>>>>> application server is wrong.
>>>>> We using JBoss 5.1 with a standalone ActiveMQ 5.6.0 broker.  In
>> regards
>>>> to
>>>>> producing messages I am caching a static instance of the
>>>>> ActiveMQConnectionFactory, everything else
>>>>> Connection,Session,Destination,Producer is created with each message
>>>>> created/sent.
>>>>> I've noticed that under very high message creation it appears as
>> though
>>>>> many connections to the broker are being created (as observed using
>>>>> netstat) on the machine producing.
>>>>> It feel like there is no connection pooling being done.
>>>>> I could also not use ActiveMQConnectionFactory at all and create a
>>> JBoss
>>>> /
>>>>> ActiveMQ datasource and do the lookup via InitalContext etc..
>>>>> As I'm currently doing this is there connection pooling, should I be
>>>> doing
>>>>> this differently?
>>>>> Jeremy
>>> --
>>> Jeremy Levy
> -- 
> Jeremy Levy

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