SQL Server Forums
Profile | Register | Active Topics | Members | Search | Forum FAQ
 
Register Now and get your question answered!
Username:
Password:
Save Password
Forgot your Password?

 All Forums
 General SQL Server Forums
 New to SQL Server Administration
 Slowness
 New Topic  Reply to Topic
 Printer Friendly
Author Previous Topic Topic Next Topic  

shiyam198
Yak Posting Veteran

94 Posts

Posted - 01/24/2013 :  17:08:49  Show Profile  Reply with Quote
Hi,

I am trying to investigate a performance issue that happened couple of weeks ago. For 20 mins, many users could not log in to a system. The application in question uses a database that has the user details, controls access based on the information on that database tables, etc.

Users reported the outage lasted from 2.42 to 2:54.

I looked at SQL logs and I can't find any thing until 2.54. I get the a stream of these at 2:54


The client was unable to reuse a session with SPID 82, 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.



Error: 18056, Severity: 20, State: 29.


The only log I see before is:

FILESTREAM: effective level = 0, configured level = 0, file system access share name = 'MSSQLSERVER'.

No major activity happened during this time.

Is there any way to figure out what happened during this time?

Thanks so much for your time.

Shiyam



jackv
Flowing Fount of Yak Knowledge

United Kingdom
2067 Posts

Posted - 01/26/2013 :  06:15:04  Show Profile  Visit jackv's Homepage  Reply with Quote
Had you hit some worker thread maximum ? It's difficult to know unless you were monitoring.
Failure ID 29 is the RedoLoginException - consider analysing memory pressure
Is there anything in the Application Log?

As it's been a few weeks - even finding something in the default trace is unlikely - as the logs will have rolled over

Jack Vamvas
--------------------
http://www.sqlserver-dba.com
Go to Top of Page

ovc
Starting Member

Romania
35 Posts

Posted - 01/26/2013 :  12:38:36  Show Profile  Reply with Quote
I agree with jacky.
Possible memory pressure or you hit the max worker threads.

If you have more than 4 CPUs check that you have also set the max degree of parallelism to a value which is ok
Go to Top of Page
  Previous Topic Topic Next Topic  
 New Topic  Reply to Topic
 Printer Friendly
Jump To:
SQL Server Forums © 2000-2009 SQLTeam Publishing, LLC Go To Top Of Page
This page was generated in 0.05 seconds. Powered By: Snitz Forums 2000