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MQSeries.net Forum IndexGeneral DiscussionRecord timing of incoming and outgoing messages on AS400

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limboonlee
PostPosted: Wed Apr 29, 2009 12:23 am Post subject: Record timing of incoming and outgoing messages on AS400 Reply with quote

Novice

Joined: 29 Apr 2009
Posts: 12

My user is saying that the messages that they sent to AS400 is taking a long time to return, but I could not find any evidence that the delay is at the AS400 side.

Is there a exit that I can install in my channels on AS400 (sdr and rcvr) to record the timing of messages coming and leaving these channels?

Thanks
BL
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Mr Butcher
PostPosted: Wed Apr 29, 2009 1:51 am Post subject: Reply with quote

Padawan

Joined: 23 May 2005
Posts: 1716

sounds like this is request - reply ? if you do a run with a single request message that will cause a reply, you can see from the channel status (last message date and time) of sender and receiver channel the time the incoming and outgoing message. it is in the form at hh:mm:ss, so it does not show very acurate when exactly the reply was sent, but it may give you an idea if there is a delay on the as400 end or not. (assuming we do not talk about very short delays here)
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fjb_saper
PostPosted: Wed Apr 29, 2009 3:30 am Post subject: Reply with quote

Grand High Poobah

Joined: 18 Nov 2003
Posts: 20246
Location: LI,NY

We had a similar problem and opened a PMR with IBM. As we are on distributed... well it was pinpointed down to disk latency problems.

What you should do to help diagnose the problem:

MAKE SURE your requester and server hosts are time synched.

Have the server app do following:
record the time on the incoming msg (MQHD), record the time the incoming message was received (app), record the time before the put of the reply(app) and record the time after the put of the reply(app). You have then the means to check on the server side where your time is spent.

On the requester side: record the time after the put (and commit) of the request (app), record the time the reply message was sent (MQMD), record the time the reply message was received (app). This should allow you to pinpoint whether excessive time is being spent in the network.

Some message monitoring for average time spent on queue might help too.

Have fun
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