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Friday, October 02, 2009 12:11 PM

Use Windows security sparingly for MSMQ messages

Looking for help on an (unrelated) MSMQ issue, I found this footnote to one of the posts on Peter Bromberg's blog which I thought was worth sharing: And here is a performance issue I didn't know before: Use Windows Security Sparingly MSMQ uses the standard
Posted by JohnBrea | 0 Comments
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Tuesday, August 25, 2009 9:36 PM

What aspects of MSMQ performance would you like to know more about?

One thing that customers are short of is up-to-date information on MSMQ performance so they can plan for hardware requirements as their systems grow. I've tried to think what sort of data would be useful and have come up with the following short list:
Posted by JohnBrea | 2 Comments
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Tuesday, July 14, 2009 12:37 PM

How to squash your VHDs

One of my machines is set up with a small virtual BizTalk environment - a domain controller, an SQL server and a BizTalk server - running under Virtual PC. Works like a dream - I love drag-and-drop to the virtual machine (Virtual Server, are you listening?)
Posted by JohnBrea | 2 Comments
Monday, March 30, 2009 12:08 PM

Using MSMQ quotas to improve startup time

With 64-bit operating systems, it is possible for MSMQ to hold a vast number of messages. Some people think this is a good thing as it means MSMQ can wait out any network outages without running out of space. In the past with 32-bit systems, only a few
Posted by JohnBrea | 0 Comments
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Monday, February 16, 2009 11:34 AM

MSMQ writes data to storage in 4 kilobyte chunks.

Saw a question on the MSMQ newsgroups the other day where someone had noticed that tiny MSMQ messages were causing the same amount of disk activity regardless of size and asked to know why. The reason is that MSMQ messages won't be written to disk in
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Monday, February 09, 2009 12:03 PM

Changing the MSMQ Storage location

Some people have the situation where they have set up MSMQ using defaults and now find that the storage disk, usually the system drive C:, has insufficient space for the message volume they are seeing. If there are a number of these machines, or maybe
Posted by JohnBrea | 1 Comments
Friday, February 06, 2009 1:55 PM

Optimising performance of MSMQ over HTTP

Here are a couple of registry values you can tweak if you are sending messages over a high latency network like the Internet. The first two are for setting the TCP receive window which is the number of bytes a sender can transmit without receiving an
Posted by JohnBrea | 0 Comments
Friday, October 17, 2008 2:56 PM

MSMQ requires free contiguous space in storage before messages can be delivered

Saw an interesting problem today which I thought was worth sharing. A customer was trying to send some large messages from one machine to another but, even though the destination had not yet reached its storage quota and there should have been enough
Posted by JohnBrea | 0 Comments
Friday, September 26, 2008 3:58 PM

Monitoring empty queues in MSMQ

One common misconception is that because a queue exists in Computer Management you should be able to monitor it. From the MSMQ FAQ (link on the left): 5.10 .... And why is it that I cannot see all my queues in System Monitor? ... a queue is only monitored
Posted by JohnBrea | 0 Comments
Friday, September 12, 2008 1:54 PM

LSASS process can get into a spin with too many MSMQ messages

There's a new KB article out (although the hotfix was produced last year): FIX: The Lsass.exe process may use a high percentage of CPU resources when you run Message Queuing on a domain controller with global catalog The following is taken from the KB:
Posted by JohnBrea | 0 Comments
Tuesday, August 26, 2008 11:44 AM

MSMQ is asynchronous on the inside too

There is a new Knowledgebase article out - although I use the term "new" with some reservation. The article refers to a hotfix that has since been included in service pack 2 which gives you an idea how old the content really is. FIX: Message Queuing 3.0
Posted by JohnBrea | 0 Comments
Friday, April 25, 2008 1:54 PM

Hotfix for when the Triggers service seems to act randomly in MSMQ 3.0

This KB: 937549 FIX: Random messages may not be processed, and duplicate messages may be processed by the trigger rule when you use the Message Queuing Triggers service to process messages in Message Queuing 3.0 is pretty irritating to me - there is so
Posted by JohnBrea | 0 Comments
Thursday, November 01, 2007 6:49 PM

Making MSMQ's persistent storage ... persistent

I had a customer the other day find that their performance with MSMQ was pretty poor until they defragged the disk. Not only were the storage files fragmented so reading and writing recoverable messages was slow but also creating new storage files on
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Thursday, May 24, 2007 6:43 PM

How to repair MSMQ Performance Counters

At last, after years of waiting, there is finally a KB article on repairing the MSMQ Performance Counters: 936493 Performance objects or bridge channel data may not appear as expected in Message Queuing There are already a number of KB articles that discuss
Posted by JohnBrea | 3 Comments
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Tuesday, May 01, 2007 2:00 PM

Performance Monitor has trouble showing over 4GB of MSMQ messages.

I have been testing my 64-bit MSMQ 3.0 server by chucking 1,000s of large messages at it to see how well it responds. I did have Performance Monitor running, showing "Total messages in all queues" and "Total bytes in all queues" for the MSMQ service.
Posted by JohnBrea | 3 Comments
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