RE: SQL*Net - Connection Timeout
Date: Fri, 29 Feb 2008 14:49:00 -0500
If that client is connecting using ODBC connection then you might enable query time out setting on that client ODBCconnection. Check the box under Application tab.
Subject: SQL*Net - Connection TimeoutDate: Fri, 29 Feb 2008 16:16:20 +0000From: Paul.Moore_at_atosorigin.comTo: oracle-l_at_freelists.org
I have a problem with a remote database, where any attempt to connect to that database from one particular client hangs indefinitely (more precisely, for longer than I have been willing to wait to see if it's actually "hours" rather than "forever" :-)) The inability to connect from this particular client isn't a major problem, but having jobs which attempt to connect hang indefinitely rather than fail with a TNS timeout error is.
I have looked through the SQL*Net reference, and asked colleagues, but I cannot find any way of setting a parameter to say that the client (OCI, actually Python with cx_Oracle) connection should timeout after XXX seconds, regardless. Is there such a setting anywhere?
The connection attempt is part of a long-running process, so I cannot simply kill the hung process. Running the connection in a thread and giving up waiting after a timeout sort of works, but the thread stays there, hung, and as time goes on the process accumulates hung threads. I'd really, really like to avoid having to re-engineer my process to spawn subprocesses for each connection (especially as this is on Windows where spawning subprocesses is a bit of a pain compared to using threads).
Has anyone got any suggestions?
Paul Moore Oracle DBA Support Atos Origin UK Ltd Daresbury Court Runcorn Tel: +44 (0)1928 598537
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