C＃SQL最大池大小已达到

Question

I have a simple while loop that checks the database for inserts. If its in the loop too long my try catch gets "max pool size was reached" error. So at the bottom of loop I have a connection clearallpools() ; But that still doesn't solve it.

while (!quit)
{
connection to database strings timeout=400

read from database


connection.clearallpools();
}

Answer 1

Probably you are not closing your connections...you may want to use

while(!quit){
    //do something here
    using(var connection = GetMyConnection()){
        //do your db reads here
    }
    //do validations and something more here
}

This would ensure your connections are disposed / closed properly.

Also, you do not need to clear your pools.

SQLConnection / DBConnection objects implements IDisposable. You may want to go thru these

• Digging into IDisposable
• C# Using Statement with SQL Connection

Answer 2

You most probably keep opening new connections in the loop .

Above the loop open the connection is a using statement and then use it in the loop. Also note the removal of the clearallpools :

using(create new connection)
{
    while (!quit)
    {
    connection to database strings timeout=400

    read from database


    // connection.clearallpools(); REMOVE THIS!!!!
    }
}

Answer 3

You're exhausting the connection pool. Following each read you should close the connection which will release it back to the pool.