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Which thread pool should be tuned to ensure it can run …

An administrator notices that the Message Driven Beans (MDBs) are slow to complete, and decides to
increase the ‘Maximum concurrent MDB invocations per endpoint’.
Which thread pool should be tuned to ensure it can run the maximum number of MDBs without waiting?

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A.
Default

B.
WebContainer

C.
SIBJMSRAThreadPool

D.
WMQJCAResourceAdapter

Explanation:
The thread pool WMQJCAResourceAdapter is referenced by the WebSphere MQ (WMQ) resource adapter
inbound delivery to MDB’s. When WebSphere MQ resource adapter is used in conjunction with the activation
specs, the resource adapter’s Work Manager uses the values defined for the WMQJCAResourceAdapter for
utilizing the total number of threads defined.
Ideally the default values provides for the WMQJCAResourceAdapter will be sufficient for the resource
adapter. But in case there is an heavy load on the system processing huge number of messages, you can
increase the maximum number of threads the thread pool can hold.
http://www-01.ibm.com/support/docview.wss?uid=swg21383363

One Comment on “Which thread pool should be tuned to ensure it can run …”

  1. NatalyV says:

    Best practice: Tune your MDB thread pool to ensure it can run the maximum number of MDBs without waiting. Configure “Always activate MDB‟s in all servers” and set Maximum concurrent MDB invocations as per your architecture allows.




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