suggestion, narrow record causing enqueue lock on table

  • From: "Leonard, George" <GLeonard@xxxxxxxxxxxxx>
  • To: "Oracle-L (E-mail)" <Oracle-L@xxxxxxxxxxxxx>
  • Date: Fri, 25 Feb 2005 11:44:45 +0200

Hi all
 
Got a record that got a average row length of 46 Bytes.
 
This is basically a record of which records the user is currently
editing/accessing in table called user_events.
 
Ever user that enters a form either inserts into user_events or deletes
from it,
 
Record being very narrow and average record count being <500 ends up in
the situation that all records are within a single block,
 
Now getting 1000 users coming and going all inserting and deleting from
this table ends up with a pretty hot block,
 
Suggestions,
 
One idea was to change block size from 8K to 2K but still going to leave
a lot of records in a single block
 
George
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George Leonard
Oracle Database Administrator
New Dawn Technologies @ Wesbank
E-mail:gleonard@xxxxxxxxxxxxx
 
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