Hi,
I am currently working on an application where I am sensing two sensors,
one periodically and one based on an event. I am using CTP and
dissemination. The network TESTBED consisting of about 40 nodes has been
running successfully for about 4 months now.
All the incoming data is fed from the ROOT node into a Server over
serial link and then logged into a MySQL database from the Java
application. I am having a constant error every now and then and it's
the same error and I think it happens when too many packets come at the
same time. This is the error....
Exception in door msg No operations allowed after connection closed.
com.mysql.jdbc.exceptions.MySQLNonTransientConnectionException: No
operations al
lowed after connection closed.
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:980)
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.java:1098)
at
com.mysql.jdbc.ConnectionImpl.createStatement(ConnectionImpl.java:238
0)
at
com.mysql.jdbc.ConnectionImpl.createStatement(ConnectionImpl.java:236
2)
at ApplicationGui.messageReceived(KingsCourtGui.java:498)
at net.tinyos.message.Receiver.packetReceived(Receiver.java:210)
at
net.tinyos.packet.PhoenixSource.dispatch(PhoenixSource.java:160)
at
net.tinyos.packet.PhoenixSource.packetDipatchLoop(PhoenixSource.java:
152)
at net.tinyos.packet.PhoenixSource.run(PhoenixSource.java:169)
The Java application seems to be stuck after this error and Pressing
Ctrl-C brings it back to normal operation, can anyone suggest what i can
do to overcome this problem???
Regards,
Varun Jain
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