Zhivko Mitrev wrote:
hi!
> I am using MaxDB with JBoss 3.2.6. I have a problem; suddenly my
> PreparedStatements are being closed. (SAP DBTech JDBC: Object is
> closed.). Here is detailed information.
i cannot say anything about the specific code you pasted but i would
suspect an abnormality only if your error happens reproducably.
if it happens sporadically only, I can say from my experience that
long-running applications on long-running maxdb instances get a hickup
from time to time and lose a connection in the way you described.
one reason may be a session timeout on the maxdb side (parameter
SESSION_TIMEOUT or something) - the db closes a connection after
minutes/hours of inactivity. in my installations i usually disable this
timeout completely since inactivity is handled by the connection pool.
good luck solving this,
Raimund
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