Tomcat JDBC Conencton Pool + MySQL gives “Broken pipe” problems, even with connection validation

Question

I\'m fighting with configuring Tomcat JDBC Connection Pool to achieve reliability. Current issue is that in test environment I have such scanerio in webapp:

• da

Answer 1

We had some similar problems with one of our applications and after a lot of digging we added the following properties that solved all our connection problems:

maxAge="180000" 
testOnBorrow="true" 
testWhileIdle="true"
validationInterval="0" //forces the connection pool to validate each time a connection is given to the application

Answer 2

You need to set 'testOnBorrow' to 'true', and probably 'maxAge' to less than the server's configured 'wait_timeout', as hinted in the message.