Jdbcexceptionreporter - Sql Error 0 Sqlstate S1000
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Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up WARN SqlExceptionHelper:143 - SQL Error: 0, SQLState: sql state = 08s01 error code = 0 08S01- SqlExceptionHelper:144 - Communications link failure up vote 5 down vote favorite 2 I have problem with Hibernate (hibernate-core-4.1.9.Final.jar) When i testing hibernate in for loop all working fine: for(int i=0;i<1500;i++){ UserDAO.getInstance.getById(1); } When i add Thread.sleep() in for loop for(int i=0;i<1500;i++){ UserDAO.getInstance.getById(1); Thread.sleep(60000); } After 1 minute i get exception : 00:20:06,447 WARN SqlExceptionHelper:143 - SQL Error: 0, SQLState: 08S01 00:20:06,448 ERROR SqlExceptionHelper:144 - Communications link failure The last packet successfully received from the server was 120,017 milliseconds ago. The last packet sent successfully to the server was 9 milliseconds ago. Exception in thread "main" org.hibernate.exception.JDBCConnectionException: Communications link failure The last packet successfully received from the server was 120,017 milliseconds ago. The last packet sent successfully to the server was 9 milliseconds ago. at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:131) at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:49) at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:125) at org.hibernate.engine.jdbc.
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta sql error 0 sqlstate null jboss Discuss the workings and policies of this site About Us Learn sql state 08s01 native error 0 more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us dsra0010e: sql state = 08s01, error code = 0 Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like http://stackoverflow.com/questions/15752667/warn-sqlexceptionhelper143-sql-error-0-sqlstate-08s01-sqlexceptionhelper you, helping each other. Join them; it only takes a minute: Sign up Spring, MySQL and Hibernate: Database error if the system is not used within 8 hours up vote 4 down vote favorite 1 I am working on a Spring, MySQL and Hibernate project and If the project is not used within 8 hours I get http://stackoverflow.com/questions/12299751/spring-mysql-and-hibernate-database-error-if-the-system-is-not-used-within-8-h the following error. Can someone please tell me why. It looks like if I reboot the server everything works great until night time or if no one is using the system mid day for a few hours. can someone please help me out I just found this issue in a few of my projects so I must be making the same mistake in a number of projects.. please help Here is a example of my java code am I missing something: public void saveVisit(VisitModel visit) throws Exception { LOGGER.debug("[" + visit.toString() + "]"); sessionFactory.getCurrentSession().saveOrUpdate(visit); } @SuppressWarnings("unchecked") public School_lookupModel getSchoolInformation(String schoolCode) { return (School_lookupModel) sessionFactory.getCurrentSession() .createCriteria(School_lookupModel.class) .add( Restrictions.like("school", schoolCode)) .uniqueResult(); } Here is the console output of the errors: 2012-09-06 08:00:07,088 [http-8080-2] WARN org.hibernate.util.JDBCExceptionReporter - SQL Error: 0, SQLState: 08S01 2012-09-06 08:00:07,088 [http-8080-2] ERROR org.hibernate.util.JDBCExceptionReporter - Communications link failure due to underlying exception: ** BEGIN NESTED EXCEPTION ** java.io.EOFException STACKTRACE: java.io.EOFException at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:1963) at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2375) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2874) at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1623) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1715) at com.mysql.jdbc.Connection.execSQL(Connection.java:3249) at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1268) at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1403) at org.apache.
of 1 [ 6 posts ] Previous topic | Next topic Author Message sabyasachi.roy https://forum.hibernate.org/viewtopic.php?t=991039 Post subject: ERROR org.hibernate.util.JDBCExceptionReporterPosted: Mon Sep 29, 2008 1:28 am Newbie Joined: Sun Sep 28, 2008 5:28 amPosts: 4 HI guys, I'm new in hibernate. For last one month i was getting exception when i'm trying to call a scheduler from a servlet.I was getting this exception every 2nd or 3rd day error 0 from the server restart..Then when i again restarted my apps server(RESIN 3.1) the scheduler worked fine for two days and in third day i got this exception. Code:com.mchange.v2.c3p0.stmt.GooGooStatementCache - Problem with checked-in Statement, discarding.com.mysql.jdbc.exceptions.MySQLNonTransientConnectionException: No operations allowed after statement closed.Then i resolved this exception by1.writing session.close() in finally block in the DAO.2.Using the sql error 0 latest mysql connector3.setting this