Reduce the p.createdConns when failed to create new connection #9
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The number of created connections was not being decreased when
p.newConn()returned an error. As a result,p.createdConnscould reach the maximum allowed connections, causing new connections not to be created. This issue resulted inborrowConn()always returningtimed out waiting for free conn in poolbecause there were no available connections in the pool and no new connections could be created sincep.createdConnswas already at the maximum.