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| hebert |
 Posted: Fri Mar 12, 2010 8:21 am Post subject: Parameters changed in transmission queues |
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Newbie
Joined: 12 Mar 2010
Posts: 2
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Hello guys,
I hope you can help with this concern that I have, I have a queue manager which is "connected" to another one in the side of my suppliers so I do not have access to the logs in the remote side; well the thins is that:
For the last couple of weeks we have noticed that a transmission queue is been altered just in their creation and alteration time parameters everytime it is used, I like to point out that I am the only single administrator of this queue manager and I did not change any of the parameter in the queue.
My MQ version is 6.0.2.6
As far as I know this attributes are not changed by the apps they use it or it is not registered that in those attributes, is that right?
Is there a possibility it is a bug in MQ?
Thanks a lot for your help. |
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| sumit |
| Posted: Fri Mar 12, 2010 8:36 am Post subject: Re: Parameters changed in transmission queues |
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Partisan
Joined: 19 Jan 2006
Posts: 398
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| hebert wrote: |
| ...a transmission queue is been altered just in their creation and alteration time parameters everytime it is used |
hebert it should be the alteration data and time parameter which should change instead of create date and time.
The GET property of XMITQ is auto-set as DISABLED when the assocaiated channel is in stopped state. While starting, channel changes it to ENABLED to pick messages from it. That is the time when you see change in alteration date and time.
Hope that helps.
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Regards
Sumit |
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| exerk |
| Posted: Fri Mar 12, 2010 8:41 am Post subject: |
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Jedi Council
Joined: 02 Nov 2006
Posts: 6339
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Highly unlikely to be a bug. If you are absolutely certain that the XMITQ is being re-created, as evidenced by the creation date changing? If it is being recreated, I would suspect application although for what reason the would do this I cannot fathom.
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It's puzzling, I don't think I've ever seen anything quite like this before...and it's hard to soar like an eagle when you're surrounded by turkeys. |
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| Vitor |
| Posted: Fri Mar 12, 2010 9:56 am Post subject: Re: Parameters changed in transmission queues |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| hebert wrote: |
| As far as I know this attributes are not changed by the apps they use it or it is not registered that in those attributes, is that right? |
Not by user written apps; the MCAs might alter it for their own purposes but not recreate it.
| hebert wrote: |
| Is there a possibility it is a bug in MQ? |
All things are possible but it's far more likely someone else has admin access to the queue manager and is fooling with it. Accepting unreservedly that you're the only person supposed to be doing it.
Change all the passwords, check group access, see if the problem persists,
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Honesty is the best policy.
Insanity is the best defence. |
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| fjb_saper |
| Posted: Fri Mar 12, 2010 12:57 pm Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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Also please verify that a DEFINE ----REPLACE mqsc script is not changing the create date...
Have fun 
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MQ & Broker admin |
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| Vitor |
| Posted: Fri Mar 12, 2010 6:19 pm Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| fjb_saper wrote: |
Also please verify that a DEFINE ----REPLACE mqsc script is not changing the create date...
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Good point! The "someone" could be a scheduled script intended to reset the queue manager to a desired state.
_________________
Honesty is the best policy.
Insanity is the best defence. |
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| hebert |
| Posted: Tue Mar 16, 2010 1:29 pm Post subject: |
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Newbie
Joined: 12 Mar 2010
Posts: 2
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Thanks all for ypur reply, I think sumit's reply is answering my question, I will take a look at the queue just before the alteration time in order to determine if the xmitq has a get parameter disabled.
I will let you know... |
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| exerk |
| Posted: Tue Mar 16, 2010 3:28 pm Post subject: |
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Jedi Council
Joined: 02 Nov 2006
Posts: 6339
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You stated in your original post that the creation date/time was changing, so is this actually not the case?
Expect to see the XMITQ set to GET(DISABLED) if the channel is not running, and GET(ENABLED) when the channel is running, and the alteration time/date will change.
_________________
It's puzzling, I don't think I've ever seen anything quite like this before...and it's hard to soar like an eagle when you're surrounded by turkeys. |
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| PeterPotkay |
| Posted: Tue Mar 16, 2010 4:10 pm Post subject: |
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Poobah
Joined: 15 May 2001
Posts: 7722
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| exerk wrote: |
| Expect to see the XMITQ set to GET(DISABLED) if the channel is not running, |
But not running I think you mean its retrying or in one of its intermediate states as its starting up. An Inactive channel's XMITQ is enabled for gets.
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Peter Potkay
Keep Calm and MQ On |
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| exerk |
| Posted: Wed Mar 17, 2010 12:39 am Post subject: |
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Jedi Council
Joined: 02 Nov 2006
Posts: 6339
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| PeterPotkay wrote: |
| exerk wrote: |
| Expect to see the XMITQ set to GET(DISABLED) if the channel is not running, |
But not running I think you mean its retrying or in one of its intermediate states as its starting up. An Inactive channel's XMITQ is enabled for gets. |
OK, now I'm beginning to doubt myself 
I've just looked at a queue manager that has inactive channels and the XMITQ's showed as GET inhibited (I'm using MQExplorer). Once the channels were started and gracefully returned to an inactive state, the XMITQ's showed as GET allowed. Having done a little experimentation I can deduce that the XMITQ state of inhibited was probably a left-over from a 'hard' stop of the channel.
Peter, thank you for correcting yet another of my misapprehensions 
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It's puzzling, I don't think I've ever seen anything quite like this before...and it's hard to soar like an eagle when you're surrounded by turkeys. |
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