RE: 9i shared servers (dispatcher) hung

Maybe related to a bug that is fixed in 9.2.0.7  

http://metalink.oracle.com/metalink/plsql/showdoc?db=NOT&id=4168407.8

From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Jeffrey Beckstrom Sent: Wednesday, August 31, 2005 11:44 AM To: oracle-l_at_freelists.org; oracle-db-l_at_Groups.ITtoolbox.com; ORACLE-L_at_IC.SUNYSB.EDU; oracledba_at_LazyDBA.com; oracle-rdbms_at_yahoogroups.com
Subject: 9i shared servers (dispatcher) hung

People could not connect via shared server - hung. So tried stopping the dispatchers and restarting them. I did:
alter system shutdown immediate 'D000' ; alter system shutdown immediate 'D001' ;

In alert log I see the following.
idle dispatcher 'D000' terminated, pid = (13, 1)

I do not see d001 stopping. If do a lsnrctl services it still shows d001.

If do:
ALTER SYSTEM SET DISPATCHERS=''(address=(host=10.20.7.11)(proto =tcp))(dispatchers=2)'';

Then lsnrctl services shows d000, d001 and d002.

I ended up bouncing the database. I had to do a shutdown abort since shutdown immediate hung - probably due to dispatcher d001 getting stuck. Any ideas on why a dispatcher would get stuck?      

Jeffrey Beckstrom
Database Administrator
Greater Cleveland Regional Transit Authority 1240 W. 6th Street
Cleveland, Ohio 44113

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