| [CDO / Net4j] DB connection keep-alive failed Exceptions [message #626190] |
Wed, 22 September 2010 08:40 |
Eclipse User |
|
|
|
Since some days I get inside the log from my CDO server, that it lost
the connection to the database.
Both are installed on the same PC, and he get back his connection, but
it is interessed why he get this exceptions.
Im run with the latest stable release CDO 3.0 with DBStore an MySQL Backend.
It is a known bug or problem?
!ENTRY org.eclipse.emf.cdo.server.db 4 0 2010-09-22 13:21:31.803
!MESSAGE DB connection keep-alive failed
!STACK 0
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionE xception: No
operations allowed after connection closed.Connection was implicitly
closed due to underlying exception/error:
** BEGIN NESTED EXCEPTION **
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException
MESSAGE: Communications link failure
Last packet sent to the server was 0 ms ago.
STACKTRACE:
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications
link failure
Last packet sent to the server was 0 ms ago.
at sun.reflect.GeneratedConstructorAccessor20.newInstance(Unkno wn Source)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(De legatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:5 13)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
at
com.mysql.jdbc.SQLError.createCommunicationsException(SQLErr or.java:1074)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3009)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2895)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3438)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1951)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2101)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:25 48)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:24 77)
at com.mysql.jdbc.StatementImpl.executeQuery(StatementImpl.java :1422)
at
org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor$Conne ctionKeepAliveTask.run(DBStoreAccessor.java:912)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
Caused by: java.io.EOFException: Can not read response from server.
Expected to read 4 bytes, read 0 bytes before connection was
unexpectedly lost.
at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2455)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2906)
... 10 more
** END NESTED EXCEPTION **
at sun.reflect.GeneratedConstructorAccessor26.newInstance(Unkno wn Source)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(De legatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:5 13)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
at com.mysql.jdbc.Util.getInstance(Util.java:381)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:984 )
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956 )
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:926 )
at com.mysql.jdbc.ConnectionImpl.checkClosed(ConnectionImpl.jav a:1115)
at com.mysql.jdbc.ConnectionImpl.createStatement(ConnectionImpl .java:2392)
at com.mysql.jdbc.ConnectionImpl.createStatement(ConnectionImpl .java:2374)
at
org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor$Conne ctionKeepAliveTask.run(DBStoreAccessor.java:911)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
!ENTRY org.eclipse.emf.cdo.server.db 4 0 2010-09-22 13:23:22.571
!MESSAGE DB connection keep-alive failed
!STACK 0
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionE xception: No
operations allowed after connection closed.Connection was implicitly
closed due to underlying exception/error:
** BEGIN NESTED EXCEPTION **
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException
MESSAGE: Communications link failure
Last packet sent to the server was 1 ms ago.
STACKTRACE:
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications
link failure
Last packet sent to the server was 1 ms ago.
at sun.reflect.GeneratedConstructorAccessor20.newInstance(Unkno wn Source)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(De legatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:5 13)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
at
com.mysql.jdbc.SQLError.createCommunicationsException(SQLErr or.java:1074)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3009)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2895)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3438)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1951)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2101)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:25 48)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:24 77)
at com.mysql.jdbc.StatementImpl.executeQuery(StatementImpl.java :1422)
at
org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor$Conne ctionKeepAliveTask.run(DBStoreAccessor.java:912)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
Caused by: java.io.EOFException: Can not read response from server.
Expected to read 4 bytes, read 0 bytes before connection was
unexpectedly lost.
at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2455)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2906)
... 10 more
** END NESTED EXCEPTION **
at sun.reflect.GeneratedConstructorAccessor26.newInstance(Unkno wn Source)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(De legatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:5 13)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
at com.mysql.jdbc.Util.getInstance(Util.java:381)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:984 )
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956 )
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:926 )
at com.mysql.jdbc.ConnectionImpl.checkClosed(ConnectionImpl.jav a:1115)
at com.mysql.jdbc.ConnectionImpl.createStatement(ConnectionImpl .java:2392)
at com.mysql.jdbc.ConnectionImpl.createStatement(ConnectionImpl .java:2374)
at
org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor$Conne ctionKeepAliveTask.run(DBStoreAccessor.java:911)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
!ENTRY org.eclipse.emf.cdo.server.db 4 0 2010-09-22 13:29:42.254
!MESSAGE DB connection keep-alive failed
!STACK 0
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionE xception: No
operations allowed after connection closed.Connection was implicitly
closed due to underlying exception/error:
** BEGIN NESTED EXCEPTION **
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException
MESSAGE: Communications link failure
Last packet sent to the server was 0 ms ago.
STACKTRACE:
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications
link failure
Last packet sent to the server was 0 ms ago.
at sun.reflect.GeneratedConstructorAccessor20.newInstance(Unkno wn Source)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(De legatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:5 13)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
at
com.mysql.jdbc.SQLError.createCommunicationsException(SQLErr or.java:1074)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3009)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2895)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3438)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1951)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2101)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:25 48)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:24 77)
at com.mysql.jdbc.StatementImpl.executeQuery(StatementImpl.java :1422)
at
org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor$Conne ctionKeepAliveTask.run(DBStoreAccessor.java:912)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
Caused by: java.io.EOFException: Can not read response from server.
Expected to read 4 bytes, read 0 bytes before connection was
unexpectedly lost.
at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2455)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2906)
... 10 more
** END NESTED EXCEPTION **
at sun.reflect.GeneratedConstructorAccessor26.newInstance(Unkno wn Source)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(De legatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:5 13)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
at com.mysql.jdbc.Util.getInstance(Util.java:381)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:984 )
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956 )
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:926 )
at com.mysql.jdbc.ConnectionImpl.checkClosed(ConnectionImpl.jav a:1115)
at com.mysql.jdbc.ConnectionImpl.createStatement(ConnectionImpl .java:2392)
at com.mysql.jdbc.ConnectionImpl.createStatement(ConnectionImpl .java:2374)
at
org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor$Conne ctionKeepAliveTask.run(DBStoreAccessor.java:911)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
!ENTRY org.eclipse.emf.cdo.server.db 4 0 2010-09-22 13:31:00.893
!MESSAGE DB connection keep-alive failed
!STACK 0
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionE xception: No
operations allowed after connection closed.Connection was implicitly
closed due to underlying exception/error:
** BEGIN NESTED EXCEPTION **
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException
MESSAGE: Communications link failure
Last packet sent to the server was 0 ms ago.
STACKTRACE:
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications
link failure
Last packet sent to the server was 0 ms ago.
at sun.reflect.GeneratedConstructorAccessor20.newInstance(Unkno wn Source)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(De legatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:5 13)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
at
com.mysql.jdbc.SQLError.createCommunicationsException(SQLErr or.java:1074)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3009)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2895)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3438)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1951)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2101)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:25 48)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:24 77)
at com.mysql.jdbc.StatementImpl.executeQuery(StatementImpl.java :1422)
at
org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor$Conne ctionKeepAliveTask.run(DBStoreAccessor.java:912)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
Caused by: java.io.EOFException: Can not read response from server.
Expected to read 4 bytes, read 0 bytes before connection was
unexpectedly lost.
at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2455)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2906)
... 10 more
** END NESTED EXCEPTION **
at sun.reflect.GeneratedConstructorAccessor26.newInstance(Unkno wn Source)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(De legatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:5 13)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
at com.mysql.jdbc.Util.getInstance(Util.java:381)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:984 )
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956 )
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:926 )
at com.mysql.jdbc.ConnectionImpl.checkClosed(ConnectionImpl.jav a:1115)
at com.mysql.jdbc.ConnectionImpl.createStatement(ConnectionImpl .java:2392)
at com.mysql.jdbc.ConnectionImpl.createStatement(ConnectionImpl .java:2374)
at
org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor$Conne ctionKeepAliveTask.run(DBStoreAccessor.java:911)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
!ENTRY org.eclipse.emf.cdo.server.db 4 0 2010-09-22 13:31:30.953
!MESSAGE DB connection keep-alive failed
!STACK 0
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionE xception: No
operations allowed after connection closed.Connection was implicitly
closed due to underlying exception/error:
** BEGIN NESTED EXCEPTION **
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException
MESSAGE: Communications link failure
Last packet sent to the server was 1 ms ago.
STACKTRACE:
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications
link failure
Last packet sent to the server was 1 ms ago.
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Nativ e Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(Native ConstructorAccessorImpl.java:39)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(De legatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:5 13)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
at
com.mysql.jdbc.SQLError.createCommunicationsException(SQLErr or.java:1074)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3009)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2895)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3438)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1951)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2101)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:25 48)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:24 77)
at com.mysql.jdbc.StatementImpl.executeQuery(StatementImpl.java :1422)
at
org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor$Conne ctionKeepAliveTask.run(DBStoreAccessor.java:912)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
Caused by: java.io.EOFException: Can not read response from server.
Expected to read 4 bytes, read 0 bytes before connection was
unexpectedly lost.
at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2455)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2906)
... 10 more
** END NESTED EXCEPTION **
at sun.reflect.GeneratedConstructorAccessor26.newInstance(Unkno wn Source)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(De legatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:5 13)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
at com.mysql.jdbc.Util.getInstance(Util.java:381)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:984 )
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956 )
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:926 )
at com.mysql.jdbc.ConnectionImpl.checkClosed(ConnectionImpl.jav a:1115)
at com.mysql.jdbc.ConnectionImpl.createStatement(ConnectionImpl .java:2392)
at com.mysql.jdbc.ConnectionImpl.createStatement(ConnectionImpl .java:2374)
at
org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor$Conne ctionKeepAliveTask.run(DBStoreAccessor.java:911)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
!ENTRY org.eclipse.emf.cdo.server.db 4 0 2010-09-22 13:37:51.186
!MESSAGE DB connection keep-alive failed
!STACK 0
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionE xception: No
operations allowed after connection closed.Connection was implicitly
closed due to underlying exception/error:
** BEGIN NESTED EXCEPTION **
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException
MESSAGE: Communications link failure
Last packet sent to the server was 0 ms ago.
STACKTRACE:
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications
link failure
Last packet sent to the server was 0 ms ago.
at sun.reflect.GeneratedConstructorAccessor20.newInstance(Unkno wn Source)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(De legatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:5 13)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
at
com.mysql.jdbc.SQLError.createCommunicationsException(SQLErr or.java:1074)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3009)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2895)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3438)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1951)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2101)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:25 48)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:24 77)
at com.mysql.jdbc.StatementImpl.executeQuery(StatementImpl.java :1422)
at
org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor$Conne ctionKeepAliveTask.run(DBStoreAccessor.java:912)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
Caused by: java.io.EOFException: Can not read response from server.
Expected to read 4 bytes, read 0 bytes before connection was
unexpectedly lost.
at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2455)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2906)
... 10 more
** END NESTED EXCEPTION **
at sun.reflect.GeneratedConstructorAccessor26.newInstance(Unkno wn Source)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(De legatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:5 13)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
at com.mysql.jdbc.Util.getInstance(Util.java:381)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:984 )
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956 )
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:926 )
at com.mysql.jdbc.ConnectionImpl.checkClosed(ConnectionImpl.jav a:1115)
at com.mysql.jdbc.ConnectionImpl.createStatement(ConnectionImpl .java:2392)
at com.mysql.jdbc.ConnectionImpl.createStatement(ConnectionImpl .java:2374)
at
org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor$Conne ctionKeepAliveTask.run(DBStoreAccessor.java:911)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
!ENTRY org.eclipse.emf.cdo.server.db 4 0 2010-09-22 13:45:47.367
!MESSAGE DB connection keep-alive failed
!STACK 0
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionE xception: No
operations allowed after connection closed.Connection was implicitly
closed due to underlying exception/error:
** BEGIN NESTED EXCEPTION **
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException
MESSAGE: Communications link failure
Last packet sent to the server was 0 ms ago.
STACKTRACE:
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications
link failure
Last packet sent to the server was 0 ms ago.
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Nativ e Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(Native ConstructorAccessorImpl.java:39)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(De legatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:5 13)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
at
com.mysql.jdbc.SQLError.createCommunicationsException(SQLErr or.java:1074)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3009)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2895)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3438)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1951)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2101)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:25 48)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:24 77)
at com.mysql.jdbc.StatementImpl.executeQuery(StatementImpl.java :1422)
at
org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor$Conne ctionKeepAliveTask.run(DBStoreAccessor.java:912)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
Caused by: java.io.EOFException: Can not read response from server.
Expected to read 4 bytes, read 0 bytes before connection was
unexpectedly lost.
at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2455)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2906)
... 10 more
** END NESTED EXCEPTION **
at sun.reflect.GeneratedConstructorAccessor26.newInstance(Unkno wn Source)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(De legatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:5 13)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
at com.mysql.jdbc.Util.getInstance(Util.java:381)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:984 )
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956 )
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:926 )
at com.mysql.jdbc.ConnectionImpl.checkClosed(ConnectionImpl.jav a:1115)
at com.mysql.jdbc.ConnectionImpl.createStatement(ConnectionImpl .java:2392)
at com.mysql.jdbc.ConnectionImpl.createStatement(ConnectionImpl .java:2374)
at
org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor$Conne ctionKeepAliveTask.run(DBStoreAccessor.java:911)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
!ENTRY org.eclipse.emf.cdo.server.db 4 0 2010-09-22 13:53:34.599
!MESSAGE DB connection keep-alive failed
!STACK 0
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionE xception: No
operations allowed after connection closed.Connection was implicitly
closed due to underlying exception/error:
** BEGIN NESTED EXCEPTION **
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException
MESSAGE: Communications link failure
Last packet sent to the server was 0 ms ago.
STACKTRACE:
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications
link failure
Last packet sent to the server was 0 ms ago.
at sun.reflect.GeneratedConstructorAccessor20.newInstance(Unkno wn Source)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(De legatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:5 13)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
at
com.mysql.jdbc.SQLError.createCommunicationsException(SQLErr or.java:1074)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3009)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2895)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3438)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1951)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2101)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:25 48)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:24 77)
at com.mysql.jdbc.StatementImpl.executeQuery(StatementImpl.java :1422)
at
org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor$Conne ctionKeepAliveTask.run(DBStoreAccessor.java:912)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
Caused by: java.io.EOFException: Can not read response from server.
Expected to read 4 bytes, read 0 bytes before connection was
unexpectedly lost.
at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2455)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2906)
... 10 more
** END NESTED EXCEPTION **
at sun.reflect.GeneratedConstructorAccessor26.newInstance(Unkno wn Source)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(De legatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:5 13)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
at com.mysql.jdbc.Util.getInstance(Util.java:381)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:984 )
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956 )
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:926 )
at com.mysql.jdbc.ConnectionImpl.checkClosed(ConnectionImpl.jav a:1115)
at com.mysql.jdbc.ConnectionImpl.createStatement(ConnectionImpl .java:2392)
at com.mysql.jdbc.ConnectionImpl.createStatement(ConnectionImpl .java:2374)
at
org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor$Conne ctionKeepAliveTask.run(DBStoreAccessor.java:911)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
!ENTRY org.eclipse.emf.cdo.server.db 4 0 2010-09-22 13:55:29.587
!MESSAGE DB connection keep-alive failed
!STACK 0
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionE xception: No
operations allowed after connection closed.Connection was implicitly
closed due to underlying exception/error:
** BEGIN NESTED EXCEPTION **
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException
MESSAGE: Communications link failure
Last packet sent to the server was 0 ms ago.
STACKTRACE:
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications
link failure
Last packet sent to the server was 0 ms ago.
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Nativ e Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(Native ConstructorAccessorImpl.java:39)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(De legatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:5 13)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
at
com.mysql.jdbc.SQLError.createCommunicationsException(SQLErr or.java:1074)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3009)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2895)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3438)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1951)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2101)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:25 48)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:24 77)
at com.mysql.jdbc.StatementImpl.executeQuery(StatementImpl.java :1422)
at
org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor$Conne ctionKeepAliveTask.run(DBStoreAccessor.java:912)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
Caused by: java.io.EOFException: Can not read response from server.
Expected to read 4 bytes, read 0 bytes before connection was
unexpectedly lost.
at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2455)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2906)
... 10 more
** END NESTED EXCEPTION **
at sun.reflect.GeneratedConstructorAccessor26.newInstance(Unkno wn Source)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(De legatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:5 13)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
at com.mysql.jdbc.Util.getInstance(Util.java:381)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:984 )
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956 )
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:926 )
at com.mysql.jdbc.ConnectionImpl.checkClosed(ConnectionImpl.jav a:1115)
at com.mysql.jdbc.ConnectionImpl.createStatement(ConnectionImpl .java:2392)
at com.mysql.jdbc.ConnectionImpl.createStatement(ConnectionImpl .java:2374)
at
org.eclipse.emf.cdo.server.internal.db.DBStoreAccessor$Conne ctionKeepAliveTask.run(DBStoreAccessor.java:911)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
|
|
|
Powered by
FUDForum. Page generated in 0.03567 seconds
Home