RE: Slow Export

Understood Ron. The point that Tanel and I are trying to make is, if the process is slow, there is a bottleneck somewhere. You can use Oracle features and O/S tools to determine where it is. Once you've done that, you're one step closer to solving the problem. Until you understand the behavior, you're nowhere.  

-- 
Mark J. Bobak 
Senior Oracle Architect 
ProQuest Information & Learning 

"There are 10 types of people in the world:  Those who understand binary, and those who don't." 

 

________________________________

From: oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Smith, Ron
Sent: Tuesday, January 31, 2006 3:36 PM
To: tanel.poder.003_at_mail.ee; ORACLE-L
Subject: RE: Slow Export


There are several exports in different databases, exporting various size objects.  The thing is, this started about the middle of December.
Before that, everything was fine.
 
Ron

	-----Original Message-----
	From: oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Tanel Põder
	Sent: Tuesday, January 31, 2006 2:26 PM
	To: ORACLE-L
	Subject: Re: Slow Export
	
	
	And when you should see from v$session_event and v$session_wait that database itself is not the bottleneck, you could run truss -c on the exp process for a while and see the breakdown whether any system calls (like write()) take lots of time.
	 
	Are you exporting lots of small objects or few large objects?
	 
	Tanel.
	 

		----- Original Message ----- 
		From: Bobak, Mark <mailto:Mark.Bobak_at_il.proquest.com>  
		To: rlsmith_at_kmg.com ; oracle-l_at_freelists.org ; oracle-db-l_at_Groups.ITtoolbox.com ; oracle-rdbms_at_yahoogroups.com 
		Sent: Tuesday, January 31, 2006 2:07 PM
		Subject: RE: Slow Export

		What does V$SESSION_WAIT tell you about the session executing the export?
		 

		-- 
		Mark J. Bobak 
		Senior Oracle Architect 
		ProQuest Information & Learning 

		"There are 10 types of people in the world:  Those who understand binary, and those who don't." 

		 



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