Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

MSMQ, Windows Services - What can I do to make my system more reliable?

Posted on 2004-08-03
9
Medium Priority
?
355 Views
Last Modified: 2010-04-13
I have a Windows 2000 Server. Files are sent via FTP. A Windows Service with a timer, monitors the FTP folder, and puts a message on a MSMQ. A second Windows Service monitors this queue, and processes the file, specified in the queue message. The rate at which the second process reads the queue is controlled by a timer. Most of the time these processes work fine, but once in a while the second process stops processing the queue, and messages pile up. Have tried to debug the problem, but can not reproduce it. When I restart the second process, it processes all the messages on the queue. Has anyone else had a similar problem? What can I do to make my system more reliable?
0
Comment
Question by:wsfindlater
  • 5
  • 4
9 Comments
 
LVL 9

Expert Comment

by:BigC666
ID: 11708988
howdy,

have you made sure that the timers anr in sync.
0
 

Author Comment

by:wsfindlater
ID: 11709263
BigC666-
No. Do not understand why they would need to be in sync.. That is why I am using a queue. Do not know how I would put them in scyn..
0
 
LVL 9

Expert Comment

by:BigC666
ID: 11709295
what i'm trying to say is, if the second system is stoping and the first is not, then to me it looks like whatever "timer" you are using is loseing it's place some how, thus my coment about time sync.
0
Hire Technology Freelancers with Gigs

Work with freelancers specializing in everything from database administration to programming, who have proven themselves as experts in their field. Hire the best, collaborate easily, pay securely, and get projects done right.

 

Author Comment

by:wsfindlater
ID: 11709616
Using System (not Sytem.Form) timers. Would assume system would keep them in sync. Neither process gets stopped, they just wait for timers.
0
 
LVL 9

Expert Comment

by:BigC666
ID: 11709663
ok are you saying that the services don't stop, excuse me i understood that they started and stoped based on your timers.
0
 

Author Comment

by:wsfindlater
ID: 11709755
No, when the timer expires the second process is supposed to check the queue for messages. If there are no messages, or it processes all the existing messages the timer is restared.
Thanks for your responces.
0
 
LVL 9

Expert Comment

by:BigC666
ID: 11709821
so then it sounds like the timer doesn't restart automaticly, maby something is causing it to see the queue as not being emptied. i'm just trying to help you think thru the logic.
0
 

Author Comment

by:wsfindlater
ID: 11709921
Well, accually you are right. If there is some hang up in the processing then the timer will not re reset. I should, however, get an error message, unless somting is happening that prevents it.
0
 
LVL 9

Accepted Solution

by:
BigC666 earned 2000 total points
ID: 11709949
have a look at your code where your testing for an empty queue, also are you removing the files after they copy, possibly your testing before the last file is removed and not after or something on that order
0

Featured Post

Important Lessons on Recovering from Petya

In their most recent webinar, Skyport Systems explores ways to isolate and protect critical databases to keep the core of your company safe from harm.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

NTFS file system has been developed by Microsoft that is widely used by Windows NT operating system and its advanced versions. It is the mostly used over FAT file system as it provides superior features like reliability, security, storage, efficienc…
Your business may be under attack from a silent enemy that is hard to detect. It works stealthily in the shadows to access and exploit your critical business information, sensitive confidential data and intellectual property, for commercial gain. T…
Video by: ITPro.TV
In this episode Don builds upon the troubleshooting techniques by demonstrating how to properly monitor a vSphere deployment to detect problems before they occur. He begins the show using tools found within the vSphere suite as ends the show demonst…
Please read the paragraph below before following the instructions in the video — there are important caveats in the paragraph that I did not mention in the video. If your PaperPort 12 or PaperPort 14 is failing to start, or crashing, or hanging, …

916 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question