用DruidDataSource连接drds连接报错问题
你好，我们产品用了你们rds，同时用了DruidDataSource做为数据库的连接池，最近频繁报以下的错误：
com.alibaba.druid.pool.DruidDataSource.handleConnectionException(DruidDataSource.java:1190) - discard connection
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: [db305139a400001-1][10.117.14.229:3306][esign]ERR-CODE: [TDDL-4614][ERR_EXECUTE_ON_MYSQL] Error occurs when execute on GROUP ESIGN_1502870666961VNNWESIGN_ZYEG_0022_RDS ATOM rm-bp14u76p79kc5f2hw_esign_zyeg_0022_etnd: Communications link failure
The last packet successfully received from the server was 115,524 milliseconds ago. The last packet sent successfully to the server was 115,527 milliseconds ago. More: [http://middleware.alibaba-inc.com/faq/faqByFaqCode.html?faqCode=TDDL-4614]
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_151]
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:1.8.0_151]
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.8.0_151]
at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[?:1.8.0_151]
at com.mysql.jdbc.Util.handleNewInstance(Util.java:404) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.Util.getInstance(Util.java:387) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:917) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3878) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3814) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2478) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2625) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2551) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1861) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.PreparedStatement.executeUpdateInternal(PreparedStatement.java:2073) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.PreparedStatement.executeUpdateInternal(PreparedStatement.java:2009) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.PreparedStatement.executeLargeUpdate(PreparedStatement.java:5094) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1994) ~[mysql-connector-java-5.1.38.jar:5.1.38]
at com.alibaba.druid.filter.FilterChainImpl.preparedStatement_executeUpdate(FilterChainImpl.java:2723) ~[druid-1.0.13.jar:1.0.13]
at com.alibaba.druid.filter.FilterAdapter.preparedStatement_executeUpdate(FilterAdapter.java:1069) ~[druid-1.0.13.jar:1.0.13]
at com.alibaba.druid.filter.FilterEventAdapter.preparedStatement_executeUpdate(FilterEventAdapter.java:491) ~[druid-1.0.13.jar:1.0.13]
at com.alibaba.druid.filter.FilterChainImpl.preparedStatement_executeUpdate(FilterChainImpl.java:2721) ~[druid-1.0.13.jar:1.0.13]
at com.alibaba.druid.proxy.jdbc.PreparedStatementProxyImpl.executeUpdate(PreparedStatementProxyImpl.java:145) ~[druid-1.0.13.jar:1.0.13]
at com.alibaba.druid.pool.DruidPooledPreparedStatement.executeUpdate(DruidPooledPreparedStatement.java:253) [druid-1.0.13.jar:1.0.13]
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:186) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
at org.hibernate.id.IdentityGenerator$GetGeneratedKeysDelegate.executeAndExtract(IdentityGenerator.java:96) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:58) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2987) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3499) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
at org.hibernate.action.internal.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:81) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:393) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
at org.hibernate.engine.spi.ActionQueue.addResolvedEntityInsertAction(ActionQueue.java:227) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
at org.hibernate.engine.spi.ActionQueue.addInsertAction(ActionQueue.java:207) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
at org.hibernate.engine.spi.ActionQueue.addAction(ActionQueue.java:191) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
at org.hibernate.event.internal.AbstractSaveEventListener.addInsertAction(AbstractSaveEventListener.java:321) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
at org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:286) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
at org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:192) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:125) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:206) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
at org.hibernate.event.internal.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:55) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:191) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
at org.hibernate.event.internal.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:49) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:90) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
at org.hibernate.internal.SessionImpl.fireSave(SessionImpl.java:683) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
at org.hibernate.internal.SessionImpl.save(SessionImpl.java:675) [hibernate-core-4.2.8.Final.jar:4.2.8.Final]
，我们是用springmvc+hibernate+spring框架开发的，请问这个问题是什么 怎么解决。
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