MySQL Forums
Forum List  »  Connector/JDBC and Java

com.mysql.jdbc.CommunicationsException: Communications link failure due to underlying exception:
Posted by: muthu arasu
Date: July 09, 2010 03:15AM

Hi I have web application using mysql database connection. its working fine but after 8 hours or 10 later i will get below errors. please me someone


09 Jul 2010 03:31:44:924 :[ERROR] : [C]:DAOLayer [M]:getExportSystemAttribute [L]:9782
com.mysql.jdbc.CommunicationsException: 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:1903)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2349)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2860)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1571)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1666)
at com.mysql.jdbc.Connection.execSQL(Connection.java:2972)
at com.mysql.jdbc.Connection.execSQL(Connection.java:2902)
at com.mysql.jdbc.Statement.executeQuery(Statement.java:822)
at com.mysql.jdbc.DatabaseMetaData.getCallStmtParameterTypes(DatabaseMetaData.java:1235)
at com.mysql.jdbc.DatabaseMetaData.getProcedureColumns(DatabaseMetaData.java:3640)
at com.mysql.jdbc.CallableStatement.determineParameterTypes(CallableStatement.java:479)
at com.mysql.jdbc.CallableStatement.<init>(CallableStatement.java:374)
at com.mysql.jdbc.Connection.parseCallableStatement(Connection.java:4056)
at com.mysql.jdbc.Connection.prepareCall(Connection.java:4130)
at com.mysql.jdbc.Connection.prepareCall(Connection.java:4104)
at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.mchange.v2.c3p0.stmt.GooGooStatementCache$1StmtAcquireTask.run(GooGooStatementCache.java:525)
at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:547)


** END NESTED EXCEPTION **



Last packet sent to the server was 4 ms ago.
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2561)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2860)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1571)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1666)
at com.mysql.jdbc.Connection.execSQL(Connection.java:2972)
at com.mysql.jdbc.Connection.execSQL(Connection.java:2902)
at com.mysql.jdbc.Statement.executeQuery(Statement.java:822)
at com.mysql.jdbc.DatabaseMetaData.getCallStmtParameterTypes(DatabaseMetaData.java:1235)
at com.mysql.jdbc.DatabaseMetaData.getProcedureColumns(DatabaseMetaData.java:3640)

Options: ReplyQuote




Sorry, you can't reply to this topic. It has been closed.

Content reproduced on this site is the property of the respective copyright holders. It is not reviewed in advance by Oracle and does not necessarily represent the opinion of Oracle or any other party.