Oracle-L: Re: Nologging index tablespaces?

From: <Cherie_Machler_at_gelco.com>
Date: Mon, 10 Jun 2002 11:28:23 -0800
Message-ID: <F001.0047941C.20020610112823@fatcity.com>

Dennis,

We have set particular indexes to nologging when building them. These are indexes that we drop every night for our warehouse load.

It is a hassle because whenever we clone this database to our QA box, those nologged indexes get corrupt and we have to rebuild them. Takes us three hours to do. We have recovered the database too and did have to rebuild the indexes after. I guess you have to balance the regular time-savings in building/rebuilding indexes with the time cost in mean-time-to-recover.

I've never changed an entire index tablespace to nologging.

Cherie Machler
Oracle DBA
Gelco Information Network

                                                                                                                  
                    DENNIS WILLIAMS                                                                               
                    <DWILLIAMS_at_LIFE       To:     Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>     
                    TOUCH.COM>            cc:                                                                     
                    Sent by:              Subject:     Nologging index tablespaces?                               
                    root_at_fatcity.co                                                                               
                    m                                                                                             
                                                                                                                  
                                                                                                                  
                    06/10/02 01:33                                                                                
                    PM                                                                                            
                    Please respond                                                                                
                    to ORACLE-L

Have any of you changed your index tablespaces to NOLOGGING? Offhand it seems like a possible performance increase and less redo, but at the expense
of having to remember to rebuild the indexes in a recovery. And I don't like
to have special things to remember in a crisis. Dennis Williams 20% OCP
DBA
Lifetouch, Inc.

--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: DENNIS WILLIAMS
  INET: DWILLIAMS_at_LIFETOUCH.COM

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).




-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: 
  INET: Cherie_Machler_at_gelco.com

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 Mon Jun 10 2002 - 14:28:23 CDT