ASG
IBM
Zystems
Cressida
Icon
Netflexity
 
  MQSeries.net
Search  Search       Tech Exchange      Education      Certifications      Library      Info Center      SupportPacs      LinkedIn  Search  Search                                                                   FAQ  FAQ   Usergroups  Usergroups
 
Register  ::  Log in Log in to check your private messages
 
RSS Feed - WebSphere MQ Support RSS Feed - Message Broker Support

MQSeries.net Forum Index » Search

 Search found 495 matches
Author Message
  Topic: performance and logfiles
George Carey

Replies: 26
Views: 21638

PostForum: IBM MQ Installation/Configuration Support   Posted: Wed Sep 19, 2012 6:12 am   Subject: T-Rob comment
Here is something from a recent post by T-Rob on the List-server forum. It relates to an approach for sizing log files:

"...You can
tune the latency between the primary and secondary QMgrs b ...
  Topic: performance and logfiles
George Carey

Replies: 26
Views: 21638

PostForum: IBM MQ Installation/Configuration Support   Posted: Wed Sep 19, 2012 4:21 am   Subject: Related question
An important related question to all this that would factor into how to size primary log file extents for 'circular' logging.

As noted in the InfoCenter documentation illustrations for long runnin ...
  Topic: performance and logfiles
George Carey

Replies: 26
Views: 21638

PostForum: IBM MQ Installation/Configuration Support   Posted: Tue Sep 18, 2012 4:57 pm   Subject: Gets Freed
Gets Freed ... a new term of ambiguity.

Do you mean by this ... is no longer needed as a checkpoint and media image was taken moving the Head of the log past this extent and so is no longer needed ...
  Topic: performance and logfiles
George Carey

Replies: 26
Views: 21638

PostForum: IBM MQ Installation/Configuration Support   Posted: Tue Sep 18, 2012 6:25 am   Subject: application serialization
Yes, application serialization is a key component. Data points must maintain and processed in their sent sequence order.

Not super high throughput put not slow either. 250msg/sec is 15,000 msg/min ...
  Topic: performance and logfiles
George Carey

Replies: 26
Views: 21638

PostForum: IBM MQ Installation/Configuration Support   Posted: Mon Sep 17, 2012 9:47 pm   Subject: a post missed
Thought I posted this but may not have..

Maybe the 99 other logfiles are called available, kind of like an active pool for logbuffers and when a ratio of active to available hits a threshold percen ...
  Topic: performance and logfiles
George Carey

Replies: 26
Views: 21638

PostForum: IBM MQ Installation/Configuration Support   Posted: Mon Sep 17, 2012 9:16 pm   Subject: rewording and more
In my previous post I should have said: "... long running trx not crossing more then one logfile ..." (instead of " ...not crossing a checkpoint .."). Anyway ....

Thinking abou ...
  Topic: performance and logfiles
George Carey

Replies: 26
Views: 21638

PostForum: IBM MQ Installation/Configuration Support   Posted: Mon Sep 17, 2012 8:02 pm   Subject: linear
Bruce said:
1) Primaries are allocated and formatted at qmgr creation. Secondaries are allocated and formatted when needed.
2) When the first primary is filled, the first is closed, and the 2nd is ...
  Topic: performance and logfiles
George Carey

Replies: 26
Views: 21638

PostForum: IBM MQ Installation/Configuration Support   Posted: Mon Sep 17, 2012 6:28 pm   Subject: when is log file formatted
Still need to understand when the linear log files are allocated and formatted.

This seems to me to be key. If I have 10 logfiles or 100logfiles I will come to the end at some point for either as ...
  Topic: performance and logfiles
George Carey

Replies: 26
Views: 21638

PostForum: IBM MQ Installation/Configuration Support   Posted: Mon Sep 17, 2012 3:59 pm   Subject: Ok now we're talking
Ok good feedback AndyH.

So how would you allocate your 300MB primary log space?

-lp 300 with each logfile=1mb
-lp 20 with each logfile=15mb
-lp 3 with each logfile=100mb
-lp other with ...
  Topic: performance and logfiles
George Carey

Replies: 26
Views: 21638

PostForum: IBM MQ Installation/Configuration Support   Posted: Mon Sep 17, 2012 6:42 am   Subject: log value
So how big.
The value in doco says 65535 is max logfilepages at 4k which gives 256MB for each log file. Then the max 511 log files gives a lot of log space.

I keep seeing a number 16384 ... is t ...
  Topic: C++ and XMS and MI QMGRS
George Carey

Replies: 21
Views: 19231

PostForum: IBM MQ API Support   Posted: Sun Sep 16, 2012 9:58 am   Subject: read it up
Read it up ... didn't see that interpretation.

Just looking to save time if possible ...

I could save the time to reread to better understand, if I know(as stated ) it works, I can just try impl ...
  Topic: performance and logfiles
George Carey

Replies: 26
Views: 21638

PostForum: IBM MQ Installation/Configuration Support   Posted: Sun Sep 16, 2012 8:39 am   Subject: log file cycling
Talking about linux boxes with small messages 50-100bytes data payload, relatively high throughput currently 250 msgs/sec going to 500 to 1000 messages/sec over next few years.

What about log file ...
  Topic: performance and logfiles
George Carey

Replies: 26
Views: 21638

PostForum: IBM MQ Installation/Configuration Support   Posted: Sat Sep 15, 2012 7:47 pm   Subject: performance and logfiles
Which is better to have:

1.)Small to medium number of logfiles of a larger size or
2.)Medium to Large number of logfiles of a smaller size

What is the trade off?

Cannot figure this out from ...
  Topic: C++ and XMS and MI QMGRS
George Carey

Replies: 21
Views: 19231

PostForum: IBM MQ API Support   Posted: Fri Sep 14, 2012 9:25 pm   Subject: really
Oh, really that is effectively what I am looking for then!

No wild cards * are usable with IP selection if I recall? So are IPs denied by default unless authorized ?

I will have to read again w ...
  Topic: C++ and XMS and MI QMGRS
George Carey

Replies: 21
Views: 19231

PostForum: IBM MQ API Support   Posted: Thu Sep 13, 2012 8:48 pm   Subject: v7.1
Yes, 7.1 has much better security features.

Can one in v7.1 block all incoming IPs excepting some ?

Kind of like the setmqaut syntax "-all +inq +connect" for authorizations.

I read ...
Goto page 1, 2, 3 ... 31, 32, 33  Next Page 1 of 33

Jump to:  
Protected by Anti-Spam ACP
 
 


Theme by Dustin Baccetti
Powered by phpBB © 2001, 2002 phpBB Group

Copyright © MQSeries.net. All rights reserved.