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Back pressure event id 15007
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Back pressure event id 15007 - 11.Aug.2008 1:54:00 PM
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dwynne
Posts: 52
Joined: 10.Apr.2008
Status: offline
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A couple times over the past week the back pressure feature has kicked in. The server has 8GB of ram with a page file of 8202. About 90 users. I have one controller with 6 drives. The OS is on a mirrored array and the logs and db on a raid 5 on separate partitions.
Do I need to move the page file?
Move the queue database?
There wasn't anything going on at the time that I could tell that would cause the server to be under heavy stress.
Event Type: Error
Event Source: MSExchangeTransport
Event Category: ResourceManager
Event ID: 15007
Date: 8/11/2008
Time: 1:02:20 PM
User: N/A
Computer:
Description:
The Microsoft Exchange Transport service is rejecting message submissions because the service continues to consume more memory than the configured threshold.
Resource utilization of the following resources exceed the normal level:
Private bytes = 85% [High] [Normal=71% Medium=73% High=75%]
Back pressure caused the following components to be disabled:
Inbound mail submission from Hub Transport servers
Inbound mail submission from the Internet
Mail submission from the Pickup directory
Mail submission from the Replay directory
Mail submission from Mailbox servers
Loading of e-mail from the queuing database (if available)
The following resources are in the normal state:
Queue database and disk space ("C:\Program Files\Microsoft\Exchange Server\TransportRoles\data\Queue\mail.que") = 30% [Normal] [Normal=95% Medium=97% High=99%]
Queue database logging disk space ("C:\Program Files\Microsoft\Exchange Server\TransportRoles\data\Queue\") = 30% [Normal] [Normal=95% Medium=97% High=99%]
Version buckets = 0 [Normal] [Normal=80 Medium=120 High=200]
Physical memory load = 32% [limit is 94% before message dehydration occurs.]
For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
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RE: Back pressure event id 15007 - 12.Aug.2008 7:25:46 AM
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Sembee
Posts: 3500
Joined: 17.Jan.2008
From: Somewhere near London, UK
Status: offline
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Back Pressure is normally tripped by disk space.
Have you run the best practises tool on the system to see what that says?
Simon.
_____________________________
Simon Butler,
Exchange MVP
Blog: http://www.sembee.co.uk/
Web: http://www.amset.info/
In the UK? Hire me: http://www.amset.co.uk/
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RE: Back pressure event id 15007 - 12.Aug.2008 9:28:45 AM
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dwynne
Posts: 52
Joined: 10.Apr.2008
Status: offline
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I have run the BPA and it comes up with no issues. I don't believe this is a disk space issues. On the system drive I have 50 GB available or 70 GB. The other 2 partitions have 100 + GB available.
This message seems to indicate that "private bytes" is the issue and that disk space is not at fault as evidenced by:
The following resources are in the normal state:
Queue database and disk space ("C:\Program Files\Microsoft\Exchange Server\TransportRoles\data\Queue\mail.que") = 30% [Normal] [Normal=95% Medium=97% High=99%]
Queue database logging disk space ("C:\Program Files\Microsoft\Exchange Server\TransportRoles\data\Queue\") = 30% [Normal] [Normal=95% Medium=97% High=99%]
Version buckets = 0 [Normal] [Normal=80 Medium=120 High=200]
Physical memory load = 32% [limit is 94% before message dehydration occurs.]
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RE: Back pressure event id 15007 - 12.Aug.2008 10:45:42 AM
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Sembee
Posts: 3500
Joined: 17.Jan.2008
From: Somewhere near London, UK
Status: offline
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Hard disk space is the usual cause. Not the only cause, but most questions come from that.
It this happening regularly, or just once?
What else is on the machine?
I don't think moving anything will help, because it isn't a disk pace issue. This is a RAM use issue.
Simon.
_____________________________
Simon Butler,
Exchange MVP
Blog: http://www.sembee.co.uk/
Web: http://www.amset.info/
In the UK? Hire me: http://www.amset.co.uk/
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RE: Back pressure event id 15007 - 12.Aug.2008 10:58:53 AM
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dwynne
Posts: 52
Joined: 10.Apr.2008
Status: offline
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I moved about 60 mailboxes to it last week and since then it happened twice. I have Exclaimer mail utils 2007, Symantec Info Foundation mail security for exchange, syamntec av, backupexec remote agent, powergui, and some hp utils.
It was probably part of whatever was happening at the time but I got a increasing virtual memory error at the same time the back pressure was kicking in.
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RE: Back pressure event id 15007 - 13.Aug.2008 12:22:42 PM
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Sembee
Posts: 3500
Joined: 17.Jan.2008
From: Somewhere near London, UK
Status: offline
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Based on experience I would only be pointing the finger at one cause - the Symantec applications. They cause more problems with Exchange than any others. Bloated junk in my experience. I have seen their AV product use more RAM than store.exe and that takes some doing.
If it continues then I would recommend removing the Symantec products and replacing them with something that works. I would actually go as far as to say that the cause of the problems are the Symantec products until it shown otherwise by their removal.
Simon.
_____________________________
Simon Butler,
Exchange MVP
Blog: http://www.sembee.co.uk/
Web: http://www.amset.info/
In the UK? Hire me: http://www.amset.co.uk/
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RE: Back pressure event id 15007 - 15.Aug.2008 1:11:41 PM
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dwynne
Posts: 52
Joined: 10.Apr.2008
Status: offline
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Oh you don't know how much I agree with you but I was hoping it wasn't that. Do you have an av product you recommend? I inherited Symantec. I've used Sophos in the past but never for Exchange.
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RE: Back pressure event id 15007 - 15.Aug.2008 8:28:20 PM
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Sembee
Posts: 3500
Joined: 17.Jan.2008
From: Somewhere near London, UK
Status: offline
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For Exchange it is mainly Forefront (formally Sybari Antigen) or GFI Mail Security.
Basically something different to what is on the clients.
Simon.
_____________________________
Simon Butler,
Exchange MVP
Blog: http://www.sembee.co.uk/
Web: http://www.amset.info/
In the UK? Hire me: http://www.amset.co.uk/
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