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| Statistics: failed gets |
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| Noisette |
 Posted: Wed Jan 23, 2013 6:11 pm Post subject: Statistics: failed gets |
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Novice
Joined: 20 Nov 2012
Posts: 13
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Hello,
We're running MQ version 7.5 and getting some statistics using MQ Explorer and the MS0P plugin.
One thing we've found is that we're getting a high "failed get" count. For example, for "get" and "put" totals of 572,901 and 573,043 respectively, we have a "failed get" count of 620,477.
I have looked in the Infocentre for the definition as to what a "failed get" is, but cannot find anything that actually gives me a definition which I could use in further investigation. Additionally, I have looked through the MQ errors in my installation at /var/mqm but not found anything which would indicate 620,000 errors.
Could anyone explain what a "failed get" is and how I would identify why and where they are happening, please?
Thanks for any advice. |
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| mqjeff |
| Posted: Wed Jan 23, 2013 6:19 pm Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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I'm going to go out on a limb here and say that a failed get is one that does not return an MQRC 0.
For example, an MQGET that returns an MQRC 2033, because the queue is empty because nobody has sent any messages.
And the app is cycling very rapidly on the MQGET without using a wait interval..... |
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| zpat |
| Posted: Wed Jan 23, 2013 10:48 pm Post subject: |
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Jedi Council
Joined: 19 May 2001
Posts: 5866
Location: UK
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I've seen apps have a million failed gets for about 18 successful ones.
Developers or frameworks like Spring don't use MQGMO_WAIT properly by default, this is the problem. |
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