SQL Error: 0, SQLState: 08S01 Communications link failure

Question

I am getting this error (not so frequently):

2013-05-08 16:44:35,786  WARN (JDBCExceptionReporter.java:100) [org.hibernate.util.JDBCExceptionReporter, logExc         


        

Answer 1

I'm answering on specific to this error code(08s01).

usually, MySql close socket connections are some interval of time that is wait_timeout defined on MySQL server-side which by default is 8hours. so if a connection will timeout after this time and the socket will throw an exception which SQLState is "08s01".

1.use connection pool to execute Query, make sure the pool class has a function to make an inspection of the connection members before it goes time_out.

2.give a value of greater than the default, but the largest value is 24 days

3.use another parameter in your connection URL, but this method is not recommended, and maybe deprecated.