org.springframework.dao.RecoverableDataAccessException: PreparedStatementCallback; SQL []; The last packet successfully received from the server was 56,799,849 milliseconds ago. The last packet sent successfully to the server was 56,799,850 milliseconds ago. is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem.; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 56,799,849 milliseconds ago. The last packet sent successfully to the server was 56,799,850 milliseconds ago. is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem.

at org.springframework.jdbc.support.SQLExceptionSubclassTranslator.doTranslate(SQLExceptionSubclassTranslator.java:99) ~[spring-jdbc-3.2.9.RELEASE.jar:3.2.9.RELEASE]

at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:72) ~[spring-jdbc-3.2.9.RELEASE.jar:3.2.9.RELEASE]

at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:80) ~[spring-jdbc-3.2.9.RELEASE.jar:3.2.9.RELEASE]

at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:605) ~[spring-jdbc-3.2.9.RELEASE.jar:3.2.9.RELEASE]

at org.springframework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:849) ~[spring-jdbc-3.2.9.RELEASE.jar:3.2.9.RELEASE]

at com.pyw.email.provider.dao.EmailDao.insert(EmailDao.java:39) ~[email-provider-1.1.0.jar:na]

at com.pyw.email.provider.thread.EmailSendThread.run(EmailSendThread.java:63) ~[email-provider-1.1.0.jar:na]

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_79]

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_79]

at java.lang.Thread.run(Thread.java:745) [na:1.7.0_79]

Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 56,799,849 milliseconds ago. The last packet sent successfully to the server was 56,799,850 milliseconds ago. is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem.

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.7.0_79]

at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) ~[na:1.7.0_79]

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.7.0_79]

at java.lang.reflect.Constructor.newInstance(Constructor.java:526) ~[na:1.7.0_79]

at com.mysql.jdbc.Util.handleNewInstance(Util.java:425) ~[mysql-connector-java-5.1.40.jar:5.1.40]

at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:989) ~[mysql-connector-java-5.1.40.jar:5.1.40]

at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:3743) ~[mysql-connector-java-5.1.40.jar:5.1.40]

at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2506) ~[mysql-connector-java-5.1.40.jar:5.1.40]

at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2677) ~[mysql-connector-java-5.1.40.jar:5.1.40]

at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2549) ~[mysql-connector-java-5.1.40.jar:5.1.40]

at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1861) ~[mysql-connector-java-5.1.40.jar:5.1.40]

at com.mysql.jdbc.PreparedStatement.executeUpdateInternal(PreparedStatement.java:2073) ~[mysql-connector-java-5.1.40.jar:5.1.40]

at com.mysql.jdbc.PreparedStatement.executeUpdateInternal(PreparedStatement.java:2009) ~[mysql-connector-java-5.1.40.jar:5.1.40]

at com.mysql.jdbc.PreparedStatement.executeLargeUpdate(PreparedStatement.java:5098) ~[mysql-connector-java-5.1.40.jar:5.1.40]

at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1994) ~[mysql-connector-java-5.1.40.jar:5.1.40]

at org.apache.commons.dbcp.DelegatingPreparedStatement.executeUpdate(DelegatingPreparedStatement.java:105) ~[commons-dbcp-1.4.jar:1.4]

at org.apache.commons.dbcp.DelegatingPreparedStatement.executeUpdate(DelegatingPreparedStatement.java:105) ~[commons-dbcp-1.4.jar:1.4]

at org.springframework.jdbc.core.JdbcTemplate$3.doInPreparedStatement(JdbcTemplate.java:851) ~[spring-jdbc-3.2.9.RELEASE.jar:3.2.9.RELEASE]

at org.springframework.jdbc.core.JdbcTemplate$3.doInPreparedStatement(JdbcTemplate.java:849) ~[spring-jdbc-3.2.9.RELEASE.jar:3.2.9.RELEASE]

at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:589) ~[spring-jdbc-3.2.9.RELEASE.jar:3.2.9.RELEASE]

... 6 common frames omitted

Caused by: java.net.SocketException: Broken pipe

at java.net.SocketOutputStream.socketWrite0(Native Method) ~[na:1.7.0_79]

at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:113) ~[na:1.7.0_79]

at java.net.SocketOutputStream.write(SocketOutputStream.java:159) ~[na:1.7.0_79]

at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82) ~[na:1.7.0_79]

at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140) ~[na:1.7.0_79]

at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:3725) ~[mysql-connector-java-5.1.40.jar:5.1.40]

... 19 common frames omitted