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MQSeries.net Forum Index » IBM MQ API Support » getting messages multi threaded

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alperb
PostPosted: Thu Mar 24, 2005 12:19 am    Post subject: getting messages multi threaded Reply with quote

Apprentice

Joined: 01 Jun 2004
Posts: 25
If I get messages from the same queue with multiple thread simultaneously,
do I need to use a syncronization object or does MQ handle this at API level?
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kman
PostPosted: Thu Mar 24, 2005 3:33 am    Post subject: Reply with quote

Partisan

Joined: 21 Jan 2003
Posts: 309
Location: Kuala Lumpur, Malaysia
only one thread for one message. No multiple threads getting the same message. Otherwise, raise a PMR.
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alperb
PostPosted: Thu Mar 24, 2005 5:03 am    Post subject: Reply with quote

Apprentice

Joined: 01 Jun 2004
Posts: 25
i mean one thread per message but multiple threads per queue.
as one thread grabs a message the other thread grabs the other.
do i need to syncronize GETMESSAGE function or can 10 threads check the queue for messages simultaneously?
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jefflowrey
PostPosted: Thu Mar 24, 2005 5:05 am    Post subject: Reply with quote

Grand Poobah

Joined: 16 Oct 2002
Posts: 19981
you don't need to use syncpoint to handle this. Nor do you need to do extra work to synchronize your threads.

MQ will handle it for you.
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malammik
PostPosted: Thu Mar 24, 2005 10:44 am    Post subject: Reply with quote

Partisan

Joined: 27 Jan 2005
Posts: 397
Location: Philadelphia, PA
Each thread has to establish its own mq connection, I think.
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Mikhail Malamud
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