Solved

Microsoft Exchange / Analysing backpressure issue

Posted on 2014-02-12
5
234 Views
Last Modified: 2014-02-14
Hi,

We are migrating Exchange 2010 to Exchange 2013.
The mailflow still goes through the old Exchange 2010 and via internal relay to the new Exchange 2013 servers

Yesterday i saw that almost every email that i can see in this queue gets delay with
------------------------------------------------------------
"452 4.3.1 Insufficient system resources"
------------------------------------------------------------

I immediately thought about "Back Pressure" and searched for entries in the EventLog.
After i couldn't find anything i disabled back pressure in the "edgetransport.exe.config" for some time, to proof that the issue is caused by that.

During the disabled state i had no delays or messages with that error in the queue, so i'm pretty sure that the issue is caused by back pressure.

My problem now is that i don't have any idea how to find out which one of the back pressure thresholds is causing the issue.

Any ideas how i can deeper analyse this issue, to find out what the exact reason is?

Thanks in advance
Simon
0
Comment
Question by:Psymonious
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
5 Comments
 
LVL 7

Expert Comment

by:jimmithakkar
ID: 39855691
Hi,

that has been caused by a lack of disk space. please check disk space,
0
 
LVL 3

Expert Comment

by:chriskelk
ID: 39858774
Are there any events in the application log?  Backpressure creates events in the 15004-7 range, which should help pin the problem down.
0
 
LVL 1

Author Comment

by:Psymonious
ID: 39858864
I checked the "edgetransport.exe.config" but i cannot find the limits that are set.
Do you know how the limits are set by default?
0
 
LVL 3

Accepted Solution

by:
chriskelk earned 500 total points
ID: 39858868
Read more of the article I linked earlier, it includes a list of options available including all the thresholds that backpressure uses.
0
 
LVL 1

Author Comment

by:Psymonious
ID: 39858922
Sorry, for the post in between, i had a problem with refreshing this site.
In the meantime i found a configuration failure on the second cluster node that caused the back pressure issue.
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

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

Following basic email etiquette rules will help you write a professional email and achieve a good, lasting impression with your contacts.
A list of top three free exchange EDB viewers that helps the user to extract a mailbox from an unmounted .edb file and get a clear preview of all emails & other items with just a single click on mailboxes.
In this video we show how to create an email address policy in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.:  First we need to log into the Exchange Admin Center. Navigate to the Mail Flow…
Exchange organizations may use the Journaling Agent of the Transport Service to archive messages going through Exchange. However, if the Transport Service is integrated with some email content management application (such as an antispam), the admini…

756 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