Reminds me of the day when a third-party developed app (main batch program) ran *very* slowly - the user department went out and bought this app and server on their own without IT's blessing or support (a different story). Dialogue below:
Third-party Developer (TPD): This same batch program which runs 1hr 30 min on your box completes under 30 min at our Office with *your* data. We suggest obtaining an IBM S80 because it is 3 times faster than your current box (IBM On-site person: Yes! Yes!!!) User Department Manager (UDM): Ok - we have a $100,000 budget for this - lets go out and buy this h/w (We need to go through IT for this purchase) My Manager, when approached with this issue (MM): I know your TPD has this view, but can my Sr. DBA look at this problem? UDM: Ok, but I doubt anything can be done since my TPD says so... TPD: Hey, your DBA can't mess with our code! Sr.DBA (Me!): Ok - let's take a look at V$SYSTEM_EVENT, V$SESSION_EVENT and V$SESSION_WAIT when your program runs... Me: Hey - what's this session doing with 'SQL*Net Message from dblink'? This is the top wait (more than 99% of TIME_WAITED in V$SESSION_EVENT) TPD: Yeah - we have a view that makes a call to your employee table sitting on your prod box to fetch the Emp name, once for every row in the loop (1000s of rows, 3300 rows a pop) Me: Haven't you guys heard of Replicated Tables? TPD: What's that? Me: (after creating a local copy and replacing the view with an indexed table) Run your program now... TPD: Hey - it finished in 5 minutes!!! We don't need to buy any other box! UDM: I like that!!! Thanks!! MM: Well done - I knew my DBA could do it! (IBM On-site person: [EMAIL PROTECTED]@#&*()+__@) Me: (Hitting myself on the head, and thinking to myself: I should have asked for just 1% of the $$ that would have otherwise been unnecessarily spent on that great big H/w box :( Moral of the story: (a) Never ass*u*me anything - ask for stats to prove any 'assumption' (b) Get the right tools to determine the problem area (and use it correctly) Afterthought (c) - Follow Gary Goodman's principle: Ask for 10% of the $$ allocated for the h/w that would have otherwise been spent on *trying* to solve the problem by throwing h/w at it! (Cary - correct me if I erred here!) John Kanagaraj DB Soft Inc Phone: 408-970-7002 (W) Grace - Getting something we do NOT deserve Mercy - NOT getting something we DO deserve Click on 'http://www.needhim.org' for Grace and Mercy that is freely available! ** The opinions and facts contained in this message are entirely mine and do not reflect those of my employer or customers ** >-----Original Message----- >From: [EMAIL PROTECTED] >[mailto:[EMAIL PROTECTED] >Sent: Thursday, December 11, 2003 11:29 AM >To: Multiple recipients of list ORACLE-L >Subject: RE: Performance tuning in complex environment > > >Not really sure what happened and why we decided to that. I >was involved in the beginning of project and remembered that >PM was mentioning about talking to another Logician client who >were facing same issues. > >-----Original Message----- >Jamadagni, Rajendra >Sent: Thursday, December 11, 2003 10:55 AM >To: Multiple recipients of list ORACLE-L > > >Ummm ... what was the problem that prompted you guys to >replace citrix servers? > >Raj >--------------------------------------------------------------- >----------------- >Rajendra dot Jamadagni at nospamespn dot com >All Views expressed in this email are strictly personal. >QOTD: Any clod can have facts, having an opinion is an art ! > > >-----Original Message----- >[mailto:[EMAIL PROTECTED] >Sent: Thursday, December 11, 2003 1:35 PM >To: Multiple recipients of list ORACLE-L > > >Hello Everyone, I am trying to get some help/suggestions reg. >how to troubleshoot performance issues. > >Little back ground about our environment. Its third party >application (Logician) from GE. There are total 11 databases, >all on oracle 8174 H-UX 11i in cluster environment. All the >databases are on EMC Symmetrix using 6 disks. All the clients >are connecting to database thru Citrix terminal servers. >In last one year we spend lots of time/money in tuning >databases, replacing Citrix servers but end result is same. I >was wondering if anybody out there has ran into same kind of >situation. Our (DBAs) guess is the disk layout is not optimal >but we also dont have any data to prove that disks are the >bottleneck. Is there any way to collect these kinds of stats >in Oracle. We aren't getting much help from our SAN administrator. > > > >DISCLAIMER: >This message is intended for the sole use of the individual to >whom it is addressed, and may contain information that is >privileged, confidential and exempt from disclosure under >applicable law. If you are not the addressee you are hereby >notified that you may not use, copy, disclose, or distribute >to anyone the message or any information contained in the >message. If you have received this message in error, please >immediately advise the sender by reply email and delete this message. >-- >Please see the official ORACLE-L FAQ: http://www.orafaq.net >-- >Author: <[EMAIL PROTECTED] > INET: [EMAIL PROTECTED] > >Fat City Network Services -- 858-538-5051 http://www.fatcity.com >San Diego, California -- Mailing list and web hosting services >--------------------------------------------------------------------- >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). > > >*************************************************************** >*********************** >This e-mail message is confidential, intended only for the >named recipient(s) above and may contain information that is >privileged, attorney work product or exempt from disclosure >under applicable law. If you have received this message in >error, or are not the named recipient(s), please immediately >notify corporate MIS at (860) 766-2000 and delete this e-mail >message from your computer, Thank you. >*************************************************************** >***********************5 >-- >Please see the official ORACLE-L FAQ: http://www.orafaq.net >-- >Author: Jamadagni, Rajendra > INET: [EMAIL PROTECTED] > >Fat City Network Services -- 858-538-5051 http://www.fatcity.com >San Diego, California -- Mailing list and web hosting services >--------------------------------------------------------------------- >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). > > >DISCLAIMER: >This message is intended for the sole use of the individual to >whom it is addressed, and may contain information that is >privileged, confidential and exempt from disclosure under >applicable law. If you are not the addressee you are hereby >notified that you may not use, copy, disclose, or distribute >to anyone the message or any information contained in the >message. If you have received this message in error, please >immediately advise the sender by reply email and delete this message. >-- >Please see the official ORACLE-L FAQ: http://www.orafaq.net >-- >Author: <[EMAIL PROTECTED] > INET: [EMAIL PROTECTED] > >Fat City Network Services -- 858-538-5051 http://www.fatcity.com >San Diego, California -- Mailing list and web hosting services >--------------------------------------------------------------------- >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). > -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: John Kanagaraj INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- 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).
