We are experiencing very slow interMedia Text resyncs ( CTX_DDL.Sync_Index ) under 8.1.7.2.5 on Win2k Server.
We upgraded from 8.1.6.0.0 to 8.1.7.2.5 earlier this month (both under Win2k Server) on essentially the same hardware. We used to see about 700-2000 CLOB documents per second indexed under 8.1.6, but now see only about 400-800. The low-high numbers relate to the size of the index being sync'd - low just before we roll out a monthly partition (total 2 million CLOBs), high just after (total 1 million CLOBs). Query performance is better under 8.1.7 - partly because I spread the DR$<>$I table across 3 drives. By the looks of the I/O pattern, I should spread DR$<>$X (the index on DR$<>$I table) across 2 or 3 drives as well. Anybody have any words of wisdom as to what I can do to speed things up? BTW, I'm curious at how 8.1.7 balances I/O. While it's writing to the DR$<>$X segment, it doesn't write to the online redo logs - it waits until it's reading from DR$<>$X segment before it writes to the redo logs. I wonder why it doesn't do the writes to redo in parallel with the writes to DR$<>$X. Thanks. Jack -------------------------------- Jack C. Applewhite Database Administrator/Developer OCP Oracle8 DBA iNetProfit, Inc. Austin, Texas www.iNetProfit.com [EMAIL PROTECTED] (512)327-9068 -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Jack C. Applewhite INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
