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 SQLServer 2008 stops responding regurlarly

Author  Topic 

Guile
Starting Member

3 Posts

Posted - 2012-08-29 : 04:48:22
Dear all,

I am experiencing severe problems with SQL Server 2008.
I have googled on the web to find any solutions with no success.

Here is the version of SQLserver I use (SP3 + cumulative patch 5)
10.0.5785.0 SP3 Web Edition (64-bit)

Regularly, SQL server stops responding. I cannot connect to it from whatever machine on the network nor on the local machine running it.

When this problem happen, when using SQL Server Management studio on the machine running the server, I cannot connect to it, I cannot run any sql command.

The only way to make it work again is to restart the service (MSSQLSERVER).

SQL Server is running on a core i7 with SSD and 16GB Ram. The database I am using is not very big (11 GB).

Thanks for your help.

jackv
Master Smack Fu Yak Hacker

2179 Posts

Posted - 2012-08-29 : 05:03:20
Can you post any error messages from Windows System Logs and SQL Server Logs relevant to the time frame?
Are there any application related details - such as BACKUPs are slow?


Jack Vamvas
--------------------
http://www.sqlserver-dba.com
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Guile
Starting Member

3 Posts

Posted - 2012-08-29 : 05:20:48
Hello Jack,

Thx for replying.
When looking into the evenement observeur, I can read

The client was unable to reuse a session with SPID XXX, which had been reset for connection pooling. The failure ID is 29. This error may have been caused by an earlier operation failing. Check the error logs for failed operations immediately before this error message.

(in fact what I read is in french but by googling the failure ID 29 I found people having the same pb: http://connect.microsoft.com/SQL/feedback/ViewFeedback.aspx?FeedbackID=468478).

I have found this info
http://blogs.msdn.com/b/sqlsakthi/archive/2011/07/06/error-18056-state-29-the-client-was-unable-to-reuse-a-session-the-failure-id-is-29-after-upgrading-sql-2000-to-sql-2008-sp2.aspx

I have set the max_workers_count to 2047 and restart the service to check any good. (http://msdn.microsoft.com/fr-fr/library/ms187024(v=sql.100).aspx says a max of 2048 for 64 bits sql server).

I will keep you informed if the problem has disapeared.

Cheers

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jackv
Master Smack Fu Yak Hacker

2179 Posts

Posted - 2012-08-29 : 11:02:47
That would be interestining to know the feedback

Jack Vamvas
--------------------
http://www.sqlserver-dba.com
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Guile
Starting Member

3 Posts

Posted - 2012-08-31 : 04:50:48
Since I have changed max_workers_count (3 days), I haven't experienced any pb anymore. If during the next week, it is still ok, there are good chances that this fix solved the pb.

Thx Jack again for pointing me where to look for!
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jackv
Master Smack Fu Yak Hacker

2179 Posts

Posted - 2012-08-31 : 09:52:51
OK , I read through the link you sent above -
http://blogs.msdn.com/b/sqlsakthi/archive/2011/07/06/error-18056-state-29-the-client-was-unable-to-reuse-a-session-the-failure-id-is-29-after-upgrading-sql-2000-to-sql-2008-sp2.aspx

Did you do an in place upgrade onto sql server 2008 . What was the run value before the upgrade?

Jack Vamvas
--------------------
http://www.sqlserver-dba.com
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