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MQSeries.net Forum Index » IBM MQ Installation/Configuration Support » Avoid Event messages to data q,syncq,channelevent,qmgr event

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Shalini
PostPosted: Wed Mar 30, 2005 5:47 am    Post subject: Avoid Event messages to data q,syncq,channelevent,qmgr event Reply with quote

Master

Joined: 30 Apr 2002
Posts: 224
Location: India

Hi All,

We are continually getting 100 of messages in the

SYSTEM.ADMIN.CHANNEL.EVENT
SYSTEM.ADMIN.QMGR.EVENT
SYSTEM.AUTH.DATA.QUEUE
SYSTEM.CHANNEL.SYNCQ

Our QMGr definition looks like below..

7 : dis qmgr
AMQ8408: Display Queue Manager details.
DESCR(STELink Queue Manager) DEADQ(DEAD.QUEUE)
DEFXMITQ( ) CHADEXIT( )
CLWLEXIT( ) CLWLDATA( )
REPOS( ) REPOSNL( )
SSLKEYR(/var/mqm/qmgrs/ST_QM/ssl/key)
SSLCRLNL( ) SSLCRYP( )
COMMANDQ(SYSTEM.ADMIN.COMMAND.QUEUE) QMNAME(ST_QM)
CRDATE(2005-02-20) CRTIME(10.27.19)
ALTDATE(2005-02-20) ALTTIME(10.27.26)
QMID(STELINK_2005-02-20_10.27.19) TRIGINT(999999999)
MAXHANDS(256) MAXUMSGS(10000)
AUTHOREV(DISABLED) INHIBTEV(DISABLED)
LOCALEV(DISABLED) REMOTEEV(DISABLED)
PERFMEV(DISABLED) STRSTPEV(ENABLED)
CHAD(DISABLED) CHADEV(DISABLED)

CLWLLEN(100) MAXMSGL(104857600)
CCSID(1089) MAXPRTY(9)
CMDLEVEL(530) PLATFORM(UNIX)
SYNCPT DISTL(YES)

I don’t want all such event messages coming to the any of the system queue.

If I disable STRSTPEV then the Stop and start QMgr event will not come.

But I don’t know how to avoid the event messages coming to
SYSTEM.ADMIN.CHANNEL.EVENT
SYSTEM.ADMIN.QMGR.EVENT
SYSTEM.AUTH.DATA.QUEUE
SYSTEM.CHANNEL.SYNCQ

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bower5932
PostPosted: Wed Mar 30, 2005 7:16 am    Post subject: Reply with quote

Jedi Knight

Joined: 27 Aug 2001
Posts: 3023
Location: Dallas, TX, USA

Have you browsed any of the messages to see what they are? Could somebody be posting messages directly to your event queues?
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Shalini
PostPosted: Wed Mar 30, 2005 7:28 am    Post subject: Reply with quote

Master

Joined: 30 Apr 2002
Posts: 224
Location: India

Hi,

We are really sure that no one is directly putting the messages they are the event messages

They are event messages and look like this in the auth data queue

00000000: 3E7A 6664 0000 0002 5354 4B5F 4558 505F '>zfd....STK_EXP_'
00000010: 5447 3730 2020 2020 2020 2020 2020 2020 'TG70 '
00000020: 2020 2020 2020 2020 2020 2020 2020 2020 ' '
00000030: 2020 2020 2020 2020 0000 0001 0000 0000 ' ........'
00000040: 0000 0002 7374 656C 696E 6B20 2020 2020 '....ste '
00000050: 0000 0002 001E 07FF 6D71 6D20 2020 2020 '....... mqm '
00000060: 2020 2020 0000 0002 001E 07FF ' .......  '
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Nigelg
PostPosted: Wed Mar 30, 2005 8:01 am    Post subject: Reply with quote

Grand Master

Joined: 02 Aug 2004
Posts: 1046

The msgs on the SYSTEM.AUTH.DATA.QUEUE are auth msgs to do with authorising user names and user IDs to access WMQ objects.

The msgs on the SYSTEM.CHANNEL.SYNCQ are to do with synchronisation data when channels start and stop - the channel status, unit of work Id, and so on.

<b>Msgs on these queues are not events - do not mess with them!</b>

The event msgs on SYSTEM.ADMIN.CHANNEL.EVENT cannot be disabled. You can stop these msgs being written to the queue by either deleting the queue or setting it to PUT(DISABLED)

The event msgs on the SYSTEM.ADMIN.QMGR.EVENT can be stopped by the various qmgr attributes
AUTHOREV
INHIBTEV
LOCALEV
REMOTEEV
STRSTPEV

See the Events Management manual for full details.
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PeterPotkay
PostPosted: Wed Mar 30, 2005 4:11 pm    Post subject: Re: Avoid Event messages to data q,syncq,channelevent,qmgr e Reply with quote

Poobah

Joined: 15 May 2001
Posts: 7722

Shalini wrote:

I don’t want all such event messages coming to the any of the system queue.


Why?
_________________
Peter Potkay
Keep Calm and MQ On
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Shalini
PostPosted: Thu Mar 31, 2005 4:01 am    Post subject: Reply with quote

Master

Joined: 30 Apr 2002
Posts: 224
Location: India

As I already posted My QMGR has following attributes

AUTHOREV(DISABLED) INHIBTEV(DISABLED)
LOCALEV(DISABLED) REMOTEEV(DISABLED)
PERFMEV(DISABLED) STRSTPEV(ENABLED)
CHAD(DISABLED) CHADEV(DISABLED)

Quote:
The event msgs on SYSTEM.ADMIN.CHANNEL.EVENT cannot be disabled. You can stop these msgs being written to the queue by either deleting the queue or setting it to PUT(DISABLED)


But in such case will it not go to Dead Queue ?????


Quote:
Why?


Because I will not know if any one directly putting msgs to System Queue
We may ignore that let all business msgs go to dead queue in case of problem

We have other means of monitoring the QMR MQ objets donot depend on the Event msgs

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Nigelg
PostPosted: Thu Mar 31, 2005 4:34 am    Post subject: Reply with quote

Grand Master

Joined: 02 Aug 2004
Posts: 1046

Quote:
But in such case will it not go to Dead Queue ?????

No, it will be discarded. See the manual.
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kevinf2349
PostPosted: Thu Mar 31, 2005 5:51 am    Post subject: Reply with quote

Grand Master

Joined: 28 Feb 2003
Posts: 1311
Location: USA

Quote:
Because I will not know if any one directly putting msgs to System Queue



Isn't that what security is for?
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fjb_saper
PostPosted: Thu Mar 31, 2005 12:42 pm    Post subject: Reply with quote

Grand High Poobah

Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY

Well ... this means of course that you cannot have any of your "users" be part of the mqm group. .... Just a sanity check...
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Shalini
PostPosted: Sun Apr 03, 2005 6:43 am    Post subject: Reply with quote

Master

Joined: 30 Apr 2002
Posts: 224
Location: India

Hi,

I have Put Disable the "SYSTEM.AUTH.DATA.QUEUE"

But got the error

04/02/05 14:48:09
AMQ5526: The WebSphere MQ Object Authority Manager has failed with reason 2051

EXPLANATION:
The Object Authority Manager has failed an operation on the Object Authority
Manager's data queue 'SYSTEM.AUTH.DATA.QUEUE' with reason 2051.
ACTION:
Investigate why the error has occured and correct the problem.

So I was unable to create or alter a queue @ that time even my id was under mqm but when I put enabled for the "SYSTEM.AUTH.DATA.QUEUE"
every thing was normal.

I think I should not have done put disable for "SYSTEM.AUTH.DATA.QUEUE" but even no msgs was going to Dead Queue
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PeterPotkay
PostPosted: Sun Apr 03, 2005 8:07 am    Post subject: Reply with quote

Poobah

Joined: 15 May 2001
Posts: 7722

You are thinking about this wrong. Don't mess with the queues. The system, like, needs them to work!

Use MQ security rules (setmqaut) to prevent users from putting and getting from SYSTEM* queues.

The only SYSTEM Q you should even think about PUT disabling is SYSTEM.ADMIN.CHANNEL.EVENT. And even that one is OK to leave alone if you just ignore what is in there.
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Peter Potkay
Keep Calm and MQ On
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