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Home -> Community -> Mailing Lists -> Oracle-L -> Re: Intermedia Text & Oracle 8.1.7.3
Jim,
There were almost 3 million docs per month, with 6 months of docs online. Each month would grow to about 3 or 4 GB. The 6 months of docs were divided into 4 tables - one month per table, except the latest two months were in a partitioned table (two partitions). This was done because 8i doesn't support partitioned domain indexes and rebuilding an index on 6 months of docs was too time-consuming every time a new month was added and the oldest month rolled off.
BTW, the 4 tables were queried as one via a Union view. It worked very well. The optimizer pushed the Contains operator right on down to the base tables and performance for iMT queries was great.
So, the largest single iMT index was on the partitioned table - max size of about 5GB of docs. I don't know what the cumulative size of all the iMT index segments was - probably pretty close to 5GB, since it's a full text index, plus all the RowIDs and such.
LongRaw! EEK! Don't do it! Use BLOBs! You'll have much more flexibility with LOBs than LongRaws.
Jack
"James
Howerton" To: Multiple recipients of list ORACLE-L
<jhowerton_at_uab <ORACLE-L_at_fatcity.com>
mc.edu> cc:
Sent by: Subject: Re: Intermedia Text & Oracle 8.1.7.3
root_at_fatcity.c
om
05/08/2002
03:18 PM
Please respond
to ORACLE-L
Jack,
How big were you're intermedia indexes on this DB. We have a DB with 50GB's (and growing 1Gb per week) of Word docs stored as long raw that we are planning to use Intermedia with.
...JIM...
>>> JApplewhite_at_austin.isd.tenet.edu 5/8/02 1:24:01 PM >>>
Daniel,
At the company I recently left, we had a 340GB 8.1.7 DB under Win2k
that
made heavy use of interMedia Text.
There are about 15 million CLOB documnets in several partitioned and
unpartitioned tables, all indexed using iMT.
We migrated from 8.1.6.0.0, where we'd been for almost two years, to 8.1.7.2.5 and ran for about 3 months with no significant problems. We upgraded to 8.1.7.3.0 about a month ago and had no problems with that version either.
All tablespaces are LMTs - except System, of course. No problems.
In
fact the iMT indexing and re-sync'ing seems to be faster now than
ever.
Oh, and we maintained a Standby DB in Managed Recovery mode as well.
Maybe we were just lucky.
Jack
-- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: JApplewhite_at_austin.isd.tenet.edu 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: ListGuru_at_fatcity.com (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).Received on Wed May 08 2002 - 16:03:22 CDT
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