> I have tried to switcing to using a normal jdbc driver with jaybird
> 1.5 (<local-tx-datasource> in jboss) as advised ealier in this
> thread. This really is not an option for me, I need the JCA support,
> but I wanted to see if this configuration would result in other
> isssues... and it has :-(
>
> now im getting a lot of the following exceptions:
>
> org.firebirdsql.jdbc.FBSQLException: GDS Exception. 335544794.
> operation was cancelled

When does it happen? Can you post your statement in which this happens?

> org.firebirdsql.jdbc.FBSQLException: GDS Exception. 335544726. Error
> reading data from the connection.

It seems that engine closes the socket. Can it be that engine has
crashed? Can you post a stack trace here?

> I must admit that im not sure these are due to driver errors, im
> currently investigating that.

First one might be driver problem. For some reasons engine sometimes
returns "operation was cancelled" when we send incorrect packet over
the socket. I need some test case.


One more suggestion: try to contact David Jencks, he wrote a big part
of the driver and all JCA stuff, as well as JCA support in JBoss.
Currently he's not participating actively in both projects, but I
think you can reach him through Core Developers Network.

Best regards,
Roman Rokytskyy