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  • Status: Solved
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SBS 2008 Exchange 2007 going down intermittant

Our Exchange 2007 goes down intermittantly. Sometimes a  reboot does not resolve.  Services are still running. Mail does not go in or out (internal and external). It seems that Exchange fixes itself at some point.  It has happened over the last 2 weeks about 4 times that we realized.  I see these messages in event log.

Log Name:      Application
Source:        MSExchangeMailSubmission
Date:          8/20/2010 12:55:48 PM
Event ID:      1009
Task Category: MSExchangeMailSubmission
Level:         Warning
Keywords:      Classic
User:          N/A
Computer:      SMCCRCSERVER.smccrc.org
Description:
The Microsoft Exchange Mail Submission Service is currently unable to contact any Hub Transport servers in the local Active Directory site. The servers may be too busy to accept new connections at this time.

Log Name:      Application
Source:        MSExchange Assistants
Date:          8/20/2010 1:10:48 PM
Event ID:      9039
Task Category: Assistants
Level:         Warning
Keywords:      Classic
User:          N/A
Computer:      SMCCRCSERVER.smccrc.org
Description:
Service MSExchangeMailSubmission.  Unable to process anything for over 30 minutes.  Diagnostic info: Governor: Governor for DatabaseManagerEvent, Last run time: 8/20/2010 12:39:33 PM, Next retry interval: 00:05:00.  Current exception: Microsoft.Exchange.Assistants.TransientServerException
   at Microsoft.Exchange.Assistants.Util.CatchMeIfYouCan(CatchMe function)
   at Microsoft.Exchange.Assistants.Base.CatchMeIfYouCan(CatchMe function)
   at Microsoft.Exchange.Assistants.EventDispatcherPrivate.DangerousProcessItem(EmergencyKit kit, InterestingEvent interestingEvent)

Log Name:      Application
Source:        MSExchange Search Indexer
Date:          8/20/2010 12:38:24 PM
Event ID:      107
Task Category: General
Level:         Warning
Keywords:      Classic
User:          N/A
Computer:      SMCCRCSERVER.smccrc.org
Description:
Exchange Search Indexer has temporarily disabled indexing of the Mailbox Database First Storage Group\Mailbox Database (GUID = 64c31e61-a1b1-40ac-8683-f9afbeb7cb10) due to an error (Microsoft.Mapi.MapiExceptionNetworkError: MapiExceptionNetworkError: Unable to read events. (hr=0x80040115, ec=-2147221227)
Diagnostic context:
    ......
    Lid: 12696   dwParam: 0x6D9      Msg: EEInfo: Generation Time: 2010-08-20 16:38:24:368
    Lid: 10648   dwParam: 0x6D9      Msg: EEInfo: Generating component: 2
    Lid: 14744   dwParam: 0x6D9      Msg: EEInfo: Status: 1753
    Lid: 9624    dwParam: 0x6D9      Msg: EEInfo: Detection location: 501
    Lid: 13720   dwParam: 0x6D9      Msg: EEInfo: Flags: 0
    Lid: 11672   dwParam: 0x6D9      Msg: EEInfo: NumberOfParameters: 4
    Lid: 8856    dwParam: 0x6D9      Msg: EEInfo: prm[0]: Unicode string: ncacn_ip_tcp
    Lid: 8856    dwParam: 0x6D9      Msg: EEInfo: prm[1]: Unicode string: SMCCRCSERVER
    Lid: 12952   dwParam: 0x6D9      Msg: EEInfo: prm[2]: Long val: -636453887
    Lid: 12952   dwParam: 0x6D9      Msg: EEInfo: prm[3]: Long val: 382312662
    Lid: 55369  
    Lid: 28777   StoreEc: 0x80040115
    Lid: 20098  
    Lid: 20585   StoreEc: 0x80040115
   at Microsoft.Mapi.MapiExceptionHelper.ThrowIfError(String message, Int32 hresult, Object objLastErrorInfo)
   at Microsoft.Mapi.MapiEventManager.ReadEvents(Int64 startCounter, Int32 eventCountWanted, Int32 eventCountToCheck, Restriction filter, ReadEventsFlags flags, Int64& endCounter)
   at Microsoft.Mapi.MapiEventManager.ReadEvents(Int64 startCounter, Int32 eventCountWanted)
   at Microsoft.Exchange.Search.RetriableOperations.ReadEvents(ThreadLocalCrawlData unused1, Guid unused2, MapiEventManager eventManager, Int64 watermark, Int32 eventCount)
   at Microsoft.Exchange.Search.RetriableOperations.DoRetriableMapiOperation[SourceType,ReturnType,Parameter1Type,Parameter2Type](ThreadLocalCrawlData crawlData, Guid mailboxGuid, SourceType source, Parameter1Type parameter1, Parameter2Type parameter2, MapiOperationDelegate`4 operationDelegate)
   at Microsoft.Exchange.Search.NotificationWatcher.GetMapiEvents(Int32 maxEvents, NotificationQueue notificationQueue)
   at Microsoft.Exchange.Search.NotificationWatcher.NotificationWatcherThread()).
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sraley
Asked:
sraley
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1 Solution
 
Alan HardistyCommented:
Add the IP Addresses of your ISP's DNS servers to the Forwarders tab of the Small Business Server DNS settings and then you should be fine.
I have seen this time and time again and this is what worked for me on my customers servers.
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sraleyAuthor Commented:
your talking about the NS entry in my forward zone in dns ?
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sraleyAuthor Commented:
I added the router address in my ns records in dns forward zone because the router has the 2 isp static entries.  2008 says I can't add them directly since they are not validating as secure.
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Alan HardistyCommented:
I am not talking about NS zones.

Open up DNS on your server (Start, Administrative Tools, DNS) then right-click on your server and choose properties.  Click on the Forwarders tab and add either ISP's DNS IP addresses to the Forwarders tab.
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sraleyAuthor Commented:
I forgot to put since DHCP only hands out the server as the dns server, we never loose internet just exchange.
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sraleyAuthor Commented:
in properties all I have is Host and Security tabs.
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sraleyAuthor Commented:
never mind found what you were talking about. The two comcast dns servers are already in the forwarders tab.
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Alan HardistyCommented:
Okay - are you running low on disk space on any volumes (less than 4gb)?  You may be suffering from Backpressure!

http://technet.microsoft.com/en-us/library/bb201658(EXCHG.80).aspx
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sraleyAuthor Commented:
Nope only 1 volume with 26 gigs free on server.  The only other volume is the USB drive that 2008 backs up too.
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Alan HardistyCommented:
26gb free out of how much space in total?
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sraleyAuthor Commented:
148gig
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Alan HardistyCommented:
You are less than 25% free space, which is usually when backpressure kicks in.

The Back Pressure settings are found in a single file called EdgeTransport.exe.config

This file is located in the "bin" subdirectory  of the Exchange Server 2007 installation directory.

Open the file with notepad and check the settings.  If you set the "enableresourcemonitoring" value to false, then save the file, restart the Edge Transport service, does mail-flow return?
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sraleyAuthor Commented:
made change and I'm rebooting. I had to shut down exchange to get it to save.
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Alan HardistyCommented:
Oh.  Sorry.  You should have been able to just stop the Edge Transport service, but not to worry.

Waiting for the restart and your next feedback.
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sraleyAuthor Commented:
everything came back up fine but email was working before I made that config change. Will have to wait until tomorrow when the office returns and starts to abuse exchange more.
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Alan HardistyCommented:
Sure - I was kind of expecting it all to be working after a reboot.
Give it some time - monitor it and see if the problems re-surface.  If not then you know you are having backpressure issues.  The question is - what to do?
You either need to clear up some space, add some more disk space, add another set of disks and move the exchange store to the new disks, get tidying up on the server or change the threshholds.
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