MySql max pool size reached / To many connections

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Hello all,
I am using .net 3.5 & mysql database 5.0 for development & mysql .net connector 5.2.5 for accessing database.The maximum connections to server is set to 500.In coding I have taken care of closing & disposing the connection after executing the query.But after working for sufficient time (say 1 or 2 hr) I get the exception as "Too many connections" or "Maximum pool size reached". When I opened the mysql administrator I saw that all the 500 connections are in sleep state.

I searched on net & came to know that this was the bug in the version of MySql I am using so I installed the latest database & driver but scenario remains same.

May I know the fix for this problem?
Any help will be appreciated. Thanks.

Posted 6-Sep-11 20:47pm

bsaurabh

Updated 6-Sep-11 20:52pm

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3 solutions

Solution 3

yes Mika, you were right.There was a function call for closing & disposing the connection. I checked the definition of it & found a call to <pre lang="c#">conn = new MySqlConnection(constr)</pre> which was creating the new connection again leaving the previous connection unclosed.
I commented the above line of code & now its working very fine.... :)

Thanks a lot to both of you for replying.

Posted 6-Sep-11 23:41pm

bsaurabh

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[no name] 17-Jan-13 7:48am

Hey i am facing the same problem can you please help me.

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Wendelius · Accepted Answer · 2011-09-06T21:39:00

What happens when you close your app after using it for awhile, does the amount of sleeping database processes immediately decrease to reasonable amount. If that happens then I think somewhere in you're code you don't close the connection.

One other place to search for this is the connection pool. For starters you can try disabling pooling and see what happens with the connections at the server side.

pooja 08 · Accepted Answer · 2011-09-06T21:30:00

Solution 1

check whether Are you disposing your connection in finally of try catch block?

Posted 6-Sep-11 21:30pm

pooja 08

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bsaurabh 7-Sep-11 5:41am

yes,connection is being disposed in finally block...