com.mysql.jdbc.exceptions.jdbc4.CommunicationsException：通信链接失败软件导致连接中止：recv失败

所有。 我有几天遇到这个问题，这是详细的堆栈信息：

org.springframework.dao.RecoverableDataAccessException: ### Error updating database. Cause: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet successfully received from the server was 18,940 milliseconds ago. The last packet sent successfully to the server was 18,918 milliseconds ago. ### The error may involve com.tuan800.searchtask.model.dao.mybatis.RelationDao.updateSuggest-Inline ### The error occurred while setting parameters ### Cause: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet successfully received from the server was 18,940 milliseconds ago. The last packet sent successfully to the server was 18,918 milliseconds ago. ; SQL []; Communications link failure The last packet successfully received from the server was 18,940 milliseconds ago. The last packet sent successfully to the server was 18,918 milliseconds ago.; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet successfully received from the server was 18,940 milliseconds ago. The last packet sent successfully to the server was 18,918 milliseconds ago. at org.springframework.jdbc.support.SQLExceptionSubclassTranslator.doTranslate(SQLExceptionSubclassTranslator.java:98) at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:72) at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:80) at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:71) at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:346) at $Proxy10.update(Unknown Source) at org.mybatis.spring.SqlSessionTemplate.update(SqlSessionTemplate.java:245) at com.tuan800.searchtask.model.dao.mybatis.impl.RelationDaoImpl.updateSuggest(RelationDaoImpl.java:24) at com.tuan800.searchtask.service.impl.RelationServiceImpl.modifyRelationCount(RelationServiceImpl.java:64) at com.tuan800.searchtask.RelationIndexTask.main(RelationIndexTask.java:33) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.intellij.rt.execution.application.AppMain.main(AppMain.java:115) Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet successfully received from the server was 18,940 milliseconds ago. The last packet sent successfully to the server was 18,918 milliseconds ago. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at com.mysql.jdbc.Util.handleNewInstance(Util.java:409) at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1118) at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3055) at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2941) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3489) at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1959) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2113) at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2568) at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2113) at com.mysql.jdbc.PreparedStatement.execute(PreparedStatement.java:1364) at com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.execute(NewProxyPreparedStatement.java:989) at sun.reflect.GeneratedMethodAccessor163.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.ibatis.logging.jdbc.PreparedStatementLogger.invoke(PreparedStatementLogger.java:45) at $Proxy20.execute(Unknown Source) at org.apache.ibatis.executor.statement.PreparedStatementHandler.update(PreparedStatementHandler.java:22) at org.apache.ibatis.executor.statement.RoutingStatementHandler.update(RoutingStatementHandler.java:51) at org.apache.ibatis.executor.SimpleExecutor.doUpdate(SimpleExecutor.java:29) at org.apache.ibatis.executor.BaseExecutor.update(BaseExecutor.java:88) at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:121) at sun.reflect.GeneratedMethodAccessor165.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:338) ... 10 more Caused by: java.net.SocketException: Software caused connection abort: recv failed at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.read(SocketInputStream.java:129) at com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:114) at com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:161) at com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:189) at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2499) at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2952) ... 32 more 

我想通过mybatis和spring来更新mysql中的logging，并且我逐一更新它，下面是mybatis config：更新build议set count =＃{count}，version =＃{version}，freq =＃{freq} where id =＃{id}

和服务代码：

 for(RelationBvo relation : list){ Long totalCount = solrDealService.queryResult(relation.getWord(),null,null,0); relation.setCount(totalCount.intValue()); if(relation.getFreq() == 0){ relation.setFreq(1); } ***relationDao.updateSuggest(relation);//update record*** executedCount++; logger.info("Program have executed "+executedCount+" records."); } 

任何人都可以帮助我吗？非常感谢。

Answer 1

您的mySQL连接在您的连接池识别它们之前超时。 有多种方法可以解决这个问题：

1. 在mysqlconfiguration文件（my.ini）中增加超时值
2. 减less连接池中的空闲时间，以便在mysqlclosures之前放弃连接
3. 在池configuration中添加一个validation连接查询，以便池在testing每个连接之前对其进行testing，但是这可能会使系统变得非常糟糕。