RE: 9i shared servers (dispatcher) hung

Internal deadlock, possibly? Sounds like a situation for hanganalyze
utility. There is a little article mentioning

hanganalyze at http://www.mgogala.com

 

--

Mladen Gogala

Ext. 121

  _____  

From: Jeffrey Beckstrom [mailto:JBECKSTROM@xxxxxxxxx] 
Sent: Wednesday, August 31, 2005 1:44 PM
To: oracle-l@xxxxxxxxxxxxx; oracle-db-l@xxxxxxxxxxxxxxxxxxxx;
ORACLE-L@xxxxxxxxxxxxx; oracledba@xxxxxxxxxxx; oracle-rdbms@xxxxxxxxxxxxxxx
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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