Thread: RE: JDBC for 7.0 - Tuple received before MetaData ex ception

Not sure, but the only way this could happen is what it states: It's
getting tuples before it's expecting to get them.

Are you running multiple threads on the same connection?

Anyhow, the query looks innocent.

Peter

-- 
Peter Mount
Enterprise Support
Maidstone Borough Council
Any views stated are my own, and not those of Maidstone Borough Council.



-----Original Message-----
From: Gunnar R|nning [mailto:gunnar@candleweb.no]
Sent: Thursday, May 25, 2000 1:35 PM
To: pgsql-interfaces@postgresql.org
Subject: [INTERFACES] JDBC for 7.0 - Tuple received before MetaData
exception


Hello, 

I'm currently going over my log files to search for suspect error
messages. I found one suspicous error message(I only have one instance
of
this exception in my log files). Does anybody know what the reason for
this
error could be ? e.g. something on the database server side, concurrency
problems etc. 

Regards, 
Gunnar

[abJDBCServer] doQuery(LocationDS) "SELECT LOC_ID , LOC_TYPE , LOC_NAME
, LOC_PARENT FROM LOCATION  WHERE LOC_PARENT IS NULL AND NOT LOC_TYPE=0
ORDER BY LOC_NAME"
abJDBCServer: handle open link exception = Tuple received before
MetaData.
Tuple received before MetaData.at java.lang.Throwable.fillInStackTrace(Native Method)at
java.lang.Throwable.fillInStackTrace(CompiledCode)at java.lang.Throwable.<init>(Compiled Code)at
java.lang.Exception.<init>(CompiledCode)at java.sql.SQLException.<init>(Compiled Code)at
 
org.postgresql.util.PSQLException.<init>(PSQLException.java:22)at org.postgresql.Connection.ExecSQL(Compiled Code)at
org.postgresql.jdbc2.Statement.execute(CompiledCode)at org.postgresql.jdbc2.Statement.executeQuery(Compiled Code)at
 
progress.apptivity.agent.server.abJDBCServer.doQueryImpl(Compiled Code)at
progress.apptivity.agent.server.abJDBCServer.doQueryImpl(Compiled Code)at
progress.apptivity.agent.server.abJDBCServer.doQuery(Compiled
Code)at
progress.apptivity.agent.server.abJDBCServer.serverRequest(Compiled
Code)at SearchFasterServerEvents.serverRequest(Compiled Code)at
progress.apptivity.server.abServer.serverRequest(Compiled
Code)at
progress.apptivity.server.abQuerySetImpl.serverRequest(Compiled Code)at
progress.apptivity.client.iiop._abQuerySetImplBase.invoke(Compiled Code)at
IE.Iona.OrbixWeb.CORBA.ServerDispatcher.dispatch(Compiled
Code)at
IE.Iona.OrbixWeb.CORBA.ServerDispatcher.system_dispatch(Compiled Code)at
IE.Iona.OrbixWeb.CORBA.BOAImpl.continueThreadDispatch(Compiled Code)at
IE.Iona.OrbixWeb.CORBA.ORB.continueThreadDispatch(Compiled
Code)at progress.apptivity.server.iiop.ow.a25.run(Compiled Code)at java.lang.Thread.run(Compiled Code)

Peter Mount <petermount@it.maidstone.gov.uk> writes:

> Not sure, but the only way this could happen is what it states: It's
> getting tuples before it's expecting to get them.
> 
> Are you running multiple threads on the same connection?

Hopefully not, but we've had concurrency issues with the application at
earlier stages, so I guess this still could be an issue. Guess, I'll have
to back into code review mode to resolve this one...

regards, Gunnar