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 Connection Pool max out

Author  Topic 

amsqlguy
Yak Posting Veteran

89 Posts

Posted - 2010-03-19 : 09:08:07
Guys,

I am trying to troubleshoot connection pool max out issue. Below is the error
we are getting

"The timeout period elapsed prior to obtaining a connection from the pool.
This may have occurred because all pooled connections were in use and max
pool size was reached."

Towards troubleshooting this error is it safe to assume that each SPID from
the activity monitor is a unique connection from the application and that each
of these SPIDs contribute towards the connection pool.

Any suggestions/inputs would help.

Thanks

tkizer
Almighty SQL Goddess

38200 Posts

Posted - 2010-03-19 : 16:03:02
Yes.

What do you have the max pool size set to?

Tara Kizer
Microsoft MVP for Windows Server System - SQL Server
http://weblogs.sqlteam.com/tarad/

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Bustaz Kool
Master Smack Fu Yak Hacker

1834 Posts

Posted - 2010-03-19 : 19:40:21
If you aren't specifically setting the connection pool size, it defaults to 100. This is usually more than enough. If you are exhausting the pool, the most likely suspect, to me, is that you have a coonection leak or some process is holding a connection open longer than is reasonable. you could run exec sp_who2 to see if the LastBatch date indicates anything funky.

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