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https://issues.apache.org/jira/browse/ARTEMIS-312?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15053060#comment-15053060
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clebert suconic commented on ARTEMIS-312:
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>> JNDI would be appealing for anybody who doesn't want to put implementation
>> classes in their code.
Most users of ActiveMQ5 don't use JNDI as far as I know.. it exists for users
who want independency.. but you could achieve the same with simple
encapsulations on client's code.
We will support it.. but I see more and more users going without JNDI.
>> "...things get messed up as you would have only the last one affecting the
>> setting." Can you clarify this point?
Say you set the pool size through a connection factory property. if you have
different settings from different instances you won't know which one would be
respected. it's a static field so you can't use it through connection factory
settings.
> Artemis clients use by default an unbounded global thread pool
> --------------------------------------------------------------
>
> Key: ARTEMIS-312
> URL: https://issues.apache.org/jira/browse/ARTEMIS-312
> Project: ActiveMQ Artemis
> Issue Type: Bug
> Components: Broker
> Affects Versions: 1.1.0
> Reporter: Jeff Mesnil
> Assignee: Justin Bertram
>
> While investigating some performance issues, we noticed that Artemis clients
> (including MDBs) use by default a "global" pool by creating a cached thread
> pool with 0 core pool size, Integer.MAX_VALUE max size and 60s keep alive.
> This default global pool looks misconfigured. If a Artemis clients has a lot
> of activity it is actually possible that threads are deleted from the pool
> and added back.
> Related to this, Artemis defines a threadPoolMaxSize attribute if the client
> is not using a global pool. But the property does not seem to be well name.
> If the Artemis client is using a "non-global" pool, this property is used to
> create a newFixedThreadPool. So this property defines the actual size of the
> pool, not a max size.
> As a comparison, the "global" scheduled thread is instantiating with a 5 core
> pool size.
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