Re: Lob chunk updates
- From: "Jonathan Lewis" <jonathan@xxxxxxxxxxxxxxxxxx>
- To: <oracle-l@xxxxxxxxxxxxx>
- Date: Fri, 5 Mar 2004 08:12:55 -0000
Which version of Oracle ?
Is the HW enqueue for the table, the lob segment,
the lobindex, or the tablespace enqueue; does
it rotate around all four ?
What's your setting of pctversion - it may
need to be reviewed for 50 concurrent
updates - or if you're on version 9, perhaps
the FREE_POOLS parameter for the LOB
definition may be more relevant.
How do you update a lob if you've truncated
the table ? (or is there an option to truncate a
specific lob -- I must read the manuals again).
Regards
Jonathan Lewis
http://www.jlcomp.demon.co.uk
The Co-operative Oracle Users' FAQ
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----- Original Message -----
From: "Don Cohoon" <Mail@xxxxxxxxxxxxx>
To: <oracle-l@xxxxxxxxxxxxx>
Sent: Friday, March 05, 2004 6:13 AM
Subject: Lob chunk updates
: Anyone notice this? 50 concurrent updaters for a table's LOB stored
: out-of-line are serialized on the HW enqueue, unless truncated.
:
: Makes a person wonder if a filesystem is not so bad after all..
: --Don
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