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Message
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| nageshshiv |
 Posted: Tue May 27, 2008 5:41 am Post subject: How Will you tune the Local Queue |
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Apprentice
Joined: 09 May 2008
Posts: 30
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Hi,
I had interview with indian based company , they have asked me a question like how will you tune if the local queue received max messages , for example 1 lakh messages ?
(or) How will you increase the performance ? |
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| sebastia |
| Posted: Fri May 30, 2008 1:01 pm Post subject: |
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Grand Master
Joined: 07 Oct 2004
Posts: 1003
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What parameters does a queue have that can improve a specified situation ?
(*) MAXDEPTH
(*) TRIGGER
But I would say you do not "tune" a queue.
If you want more throughput, you tune the whole system.
So, I would improve
(*) disk speed
(*) more memory
(*) a better CPU
... the "client" application ...
Just few ideas - I dont like to see your post so empty !
( ) |
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| KeeferG |
| Posted: Tue Jun 03, 2008 5:05 am Post subject: |
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Master
Joined: 15 Oct 2004
Posts: 215
Location: Basingstoke, UK
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I would look into altering the Queue buffers to improve performance. We have all of our queues set to 512kb. Ideally I would like tobe able to set this per queue but it takes too long currently.
1) Change buffer size
2) create queue
3) dump queue to check buffer set correctly
4) Repeat for each queue
_________________
Keith Guttridge
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Using MQ since 1995 |
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| nageshshiv |
| Posted: Mon Jun 30, 2008 12:09 am Post subject: |
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Apprentice
Joined: 09 May 2008
Posts: 30
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Keefer,
Pls find the definition of my Local queue below , Pls suggest me which field I should modify
2 : dis QUEUE(D005001.R501781)
AMQ8409: Display Queue details.
QUEUE(D005001.R501781) TYPE(QLOCAL)
ACCTQ(QMGR) ALTDATE(2008-06-24)
ALTTIME(18.10.04) BOQNAME( )
BOTHRESH(0) CLUSNL( )
CLUSTER( ) CLWLPRTY(0)
CLWLRANK(0) CLWLUSEQ(QMGR)
CRDATE(2008-06-24) CRTIME(01.19.31)
CURDEPTH(0) DEFBIND(OPEN)
DEFPRTY(0) DEFPSIST(YES)
DEFSOPT(SHARED) DEFTYPE(PREDEFINED)
DESCR(FXPCA Interface Receive Queue) DISTL(NO)
GET(ENABLED) NOHARDENBO
INITQ(IDMS.FXPCA.INITIATION.QUEUE) IPPROCS(0)
MAXDEPTH(10000) MAXMSGL(4000)
MONQ(QMGR) MSGDLVSQ(PRIORITY)
TRIGGER NPMCLASS(NORMAL)
OPPROCS(0) PROCESS(D005001.R501781.FXPCA)
PUT(ENABLED) QDEPTHHI(1)
QDEPTHLO(100) QDPHIEV(ENABLED)
QDPLOEV(DISABLED) QDPMAXEV(ENABLED)
QSVCIEV(HIGH) QSVCINT(400000)
RETINTVL(999999999) SCOPE(QMGR)
SHARE STATQ(QMGR)
TRIGDATA( ) TRIGDPTH(1)
TRIGMPRI(0) TRIGTYPE(FIRST)
USAGE(NORMAL)
Nagesh |
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| KeeferG |
| Posted: Mon Jun 30, 2008 12:19 am Post subject: |
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Master
Joined: 15 Oct 2004
Posts: 215
Location: Basingstoke, UK
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DefaultQBufferSize is a tuning parameter that you put into the qm.ini file. It is not currently a parameter of the queue though I do keep asking.
_________________
Keith Guttridge
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Using MQ since 1995 |
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| exerk |
| Posted: Mon Jun 30, 2008 12:22 am Post subject: |
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Jedi Council
Joined: 02 Nov 2006
Posts: 6339
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| nageshshiv wrote: |
| ...QDEPTHHI(1) QDEPTHLO(100)... |
These may well affect any monitoring solution you my have; these values are percentages of depth, not number of messages.
Your QDEPTHLO is set to 10,000 messages, and your QDEPTHHI to 100 messages.
_________________
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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| nageshshiv |
| Posted: Tue Jul 01, 2008 5:25 am Post subject: |
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Apprentice
Joined: 09 May 2008
Posts: 30
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Hi ,
Exerk Thanks for the update .
Could you pls explain me in detail , So that I will have clear picture
Thank KeeferG
Nagesh |
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| KeeferG |
| Posted: Tue Jul 01, 2008 5:57 am Post subject: |
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Master
Joined: 15 Oct 2004
Posts: 215
Location: Basingstoke, UK
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I would take a look on the Hurlsey Wordpress site at an article called "Creating a new Performance Queue Manager" by Rich Cumbers.
It can be found at http://hursleyonwmq.wordpress.com/2007/02/03/creating-a-new-performance-queue-manager/
Alternatively, using the search engine of your choice, search for DefaultQBufferSize and you will usually find what you are looking for.
_________________
Keith Guttridge
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Using MQ since 1995 |
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| exerk |
| Posted: Tue Jul 01, 2008 6:45 am Post subject: |
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Jedi Council
Joined: 02 Nov 2006
Posts: 6339
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| nageshshiv wrote: |
Hi ,
Exerk Thanks for the update .
Could you pls explain me in detail , So that I will have clear picture
Thank KeeferG
Nagesh |
After your QDEPTHHI event triggers you will not get a QDEPTHLO unless you get a QUEUE_FULL condition.
_________________
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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| nageshshiv |
| Posted: Thu Jul 03, 2008 6:06 am Post subject: |
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Apprentice
Joined: 09 May 2008
Posts: 30
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Hi Exerk,
Could you pls tell me what is QDEPTHHI event triggers ? |
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| exerk |
| Posted: Thu Jul 03, 2008 6:17 am Post subject: |
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Jedi Council
Joined: 02 Nov 2006
Posts: 6339
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Please read the manual, which will explain better than I can about events.
_________________
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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| crossland |
| Posted: Fri Jul 04, 2008 4:34 am Post subject: |
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Master
Joined: 26 Jun 2001
Posts: 248
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QDEPTHHI(1)
QDPHIEV(ENABLED)
Your queue is configured to generate an event message whenever your queue reaches 1 per cent of the maximum depth. If you are using a monitoring tool, it should detect when this occurs.
Tim
http://www.inspirotechnic.com |
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