| Author |
Message
|
| Trainee |
 Posted: Wed Jan 23, 2008 8:23 am Post subject: Workload balancing |
 |
|
Centurion
Joined: 27 Oct 2006
Posts: 124
|
Hi,
MQ:6.0.2.2
OS:AIX 5.3
Qmgrs TESTQM1,TESTQM2 on differenet aix servers and they are full repositories and in cluster.
There is cluster alias queue A on TESTQM1 andTESTQM2 .
Base queue is QA which got created on TESTQM1,TESTQM2.
Question: When ever I send the message from TESTQM1 messages are endingup on the same queue manager instead of getting distributed to other queue manager. Same from TESTQM2.
As I remember from MQ6 onwards the property CLWL use queue to 'any' of base queue then messages will get distributed among CLUSTER QMGRS equally.
Please throgh some clues on it.
Thank you
Trainee |
|
| Back to top |
|
 |
| Vitor |
| Posted: Wed Jan 23, 2008 8:29 am Post subject: |
|
|
Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
|
Moved to Clustering Forum
_________________
Honesty is the best policy.
Insanity is the best defence. |
|
| Back to top |
|
|
| Vitor |
| Posted: Wed Jan 23, 2008 8:30 am Post subject: Re: Workload balancing |
|
|
Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
|
| Trainee wrote: |
Question: When ever I send the message from TESTQM1 messages are endingup on the same queue manager instead of getting distributed to other queue manager. Same from TESTQM2.
|
Is the application using bind on open? Or the queue default, and if so is that bind on open?
_________________
Honesty is the best policy.
Insanity is the best defence. |
|
| Back to top |
|
|
| jefflowrey |
| Posted: Wed Jan 23, 2008 9:04 am Post subject: |
|
|
Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
|
Did you set CLWLUSEQ ?
_________________
I am *not* the model of the modern major general. |
|
| Back to top |
|
|
| Trainee |
| Posted: Wed Jan 23, 2008 10:13 am Post subject: |
|
|
Centurion
Joined: 27 Oct 2006
Posts: 124
|
Default Bind type to cluster alias queue is "On open".
I did set CLWLUSEQ "ANY" to the base queues.
I am using amqsputc to load the messages not any application. |
|
| Back to top |
|
|
| jefflowrey |
| Posted: Wed Jan 23, 2008 10:14 am Post subject: |
|
|
Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
|
| Trainee wrote: |
Default Bind type to cluster alias queue is "On open".
I did set CLWLUSEQ "ANY" to the base queues.
I am using amqsputc to load the messages not any application. |
AMQSPUTC is an application.
AMQSPUTC uses DEFBIND.
_________________
I am *not* the model of the modern major general. |
|
| Back to top |
|
|
| Trainee |
| Posted: Wed Jan 23, 2008 11:02 am Post subject: |
|
|
Centurion
Joined: 27 Oct 2006
Posts: 124
|
Hi Jeff,
I changed DEFBIND(Not fixed) also.I got the same result.
Can you explaing bit more to get it round robin when I load the messages on to the cluster alias queues.
Thank you
Trainee |
|
| Back to top |
|
|
| jefflowrey |
| Posted: Wed Jan 23, 2008 11:03 am Post subject: |
|
|
Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
|
Do you see two copies of the queue, when you do "dis qcluster(*)" on the qmgr you are connected to?
_________________
I am *not* the model of the modern major general. |
|
| Back to top |
|
|
| PeterPotkay |
| Posted: Wed Jan 23, 2008 11:04 am Post subject: |
|
|
Poobah
Joined: 15 May 2001
Posts: 7722
|
Did you restart amqsputc after changing the q?
_________________
Peter Potkay
Keep Calm and MQ On |
|
| Back to top |
|
|
| Trainee |
| Posted: Wed Jan 23, 2008 12:06 pm Post subject: |
|
|
Centurion
Joined: 27 Oct 2006
Posts: 124
|
I am able to see both the cluster alias queue instaces from one queuemanager.
I did restarted amqsputc to put the messages.
This is what I am seeing from both the QueueManagers.
dis qc(*)
1 : dis qc(*)
AMQ8409: Display Queue details.
QUEUE(A) TYPE(QCLUSTER)
AMQ8409: Display Queue details.
QUEUE(A) TYPE(QCLUSTER)
dis qc(A)
2 : dis qc(A)
AMQ8409: Display Queue details.
QUEUE(A) TYPE(QCLUSTER)
ALTDATE(2008-01-23) ALTTIME(14.53.54)
CLUSDATE(2008-01-22) CLUSTER(CLUS.TEST)
CLUSQMGR(TESTQM2) CLUSQT(QALIAS)
CLUSTIME(18.59.15) CLWLPRTY(0)
CLWLRANK(0) DEFBIND(NOTFIXED)
DEFPRTY(0) DEFPSIST(NO)
DESCR( ) PUT(ENABLED)
QMID(TESTQM2_2008-01-22_14.10.50)
AMQ8409: Display Queue details.
QUEUE(A) TYPE(QCLUSTER)
ALTDATE(2008-01-23) ALTTIME(14.53.46)
CLUSDATE(2008-01-22) CLUSTER(CLUS.TEST)
CLUSQMGR(TESTQM1) CLUSQT(QALIAS)
CLUSTIME(17.57.5 CLWLPRTY(0)
CLWLRANK(0) DEFBIND(NOTFIXED)
DEFPRTY(0) DEFPSIST(NO)
DESCR( ) PUT(ENABLED)
QMID(TESTQM1_2008-01-22_14.10.52)
DIS QA(A)
3 : DIS QA(A)
AMQ8409: Display Queue details.
QUEUE(A) TYPE(QALIAS)
ALTDATE(2008-01-23) ALTTIME(14.53.46)
TARGQ(QA) CLUSNL( )
CLUSTER(CLUS.TEST) CLWLPRTY(0)
CLWLRANK(0) DEFBIND(NOTFIXED)
DEFPRTY(0) DEFPSIST(NO)
DESCR( ) GET(ENABLED)
PUT(ENABLED) SCOPE(QMGR)
Thankyou
Trainee |
|
| Back to top |
|
|
| jefflowrey |
| Posted: Wed Jan 23, 2008 12:14 pm Post subject: |
|
|
Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
|
Are the cluster channels running to both qmgrs?
_________________
I am *not* the model of the modern major general. |
|
| Back to top |
|
|
| Vitor |
| Posted: Wed Jan 23, 2008 12:19 pm Post subject: |
|
|
Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
|
And you're sure CLWLUSEQ is ANY?
_________________
Honesty is the best policy.
Insanity is the best defence. |
|
| Back to top |
|
|
| Trainee |
| Posted: Wed Jan 23, 2008 12:48 pm Post subject: |
|
|
Centurion
Joined: 27 Oct 2006
Posts: 124
|
All cluster channeles are running .
Here it is base queue details.
dis ql(QA)
3 : dis ql(QA)
AMQ8409: Display Queue details.
QUEUE(QA) TYPE(QLOCAL)
ACCTQ(QMGR) ALTDATE(2008-01-23)
ALTTIME(15.42.32) BOQNAME( )
BOTHRESH(0) CLUSNL( )
CLUSTER( ) CLWLPRTY(0)
CLWLRANK(0) CLWLUSEQ(ANY) CRDATE(2008-01-22) CRTIME(18.01.26)
CURDEPTH( DEFBIND(NOTFIXED)
DEFPRTY(0) DEFPSIST(NO)
DEFSOPT(SHARED) DEFTYPE(PREDEFINED)
DESCR( ) DISTL(NO)
GET(ENABLED) HARDENBO
INITQ( ) IPPROCS(0)
MAXDEPTH(5000) MAXMSGL(4194304)
MONQ(QMGR) MSGDLVSQ(PRIORITY)
NOTRIGGER NPMCLASS(NORMAL)
OPPROCS(0) PROCESS( )
PUT(ENABLED) QDEPTHHI(80)
QDEPTHLO(20) QDPHIEV(DISABLED)
QDPLOEV(DISABLED) QDPMAXEV(ENABLED)
QSVCIEV(NONE) QSVCINT(999999999)
RETINTVL(999999999) SCOPE(QMGR)
SHARE STATQ(QMGR)
TRIGDATA( ) TRIGDPTH(1)
TRIGMPRI(0) TRIGTYPE(FIRST)
USAGE(NORMAL)
Thankyou
Trainee |
|
| Back to top |
|
|
| PeterPotkay |
| Posted: Wed Jan 23, 2008 1:33 pm Post subject: |
|
|
Poobah
Joined: 15 May 2001
Posts: 7722
|
Assuming everything else is correct, don't forget that a starting channel is giving less priority by the cluster workload algorithm. So if you put 10 messages and the channel to TESTQM1 is in the process of starting up it may take so long that all 10 messages go to the local q on TESTQM2 first. Make sure the channels are running and put a lot of messages.
The other possibility is lets say you are putting from QM1 to clustered queue MYQUEUE on QM2 and QM3. Normally the distribution should be about 50% to each MYQUEUE. But if there is a lot of traffic from QM1 to QM3 and QM4 for THATOTHERQUEUE (that only lives on QM3 and QM4 and not QM2), the cluster workload algorithm will see that the channel is more heavily used to QM3 than QM2, and will send more of your messages to QM2. Unfortunately one putting app can effect another's distribution in an MQ cluster.
_________________
Peter Potkay
Keep Calm and MQ On |
|
| Back to top |
|
|
|
|
