Oracle-L: RE: Direct SGA Access

From: Jamadagni, Rajendra <Rajendra.Jamadagni_at_espn.com>
Date: Fri, 11 Apr 2003 06:37:26 -0800
Message-ID: <F001.0057F822.20030411063726@fatcity.com>

Dick,

Kyle Hailey demo'd this at Hotsos Symposium ... it is a really lightweight (No session, no connection, no overhead) interface to get only the crucial things. As Anjo pointed out, READONLY mode is the keyword, anything other than that, you need a good DR plan.

This is especially useful when you have a frozen DB (which has been happening a lot to our development instances recently). When you can't connect using SQLPLUS, this may be your only choice to get any information out of Oracle.

Plus the data access to things like locks etc, is supposed to be real fast.

Besides I think you have done a lot of C stuff yourself haven't you? Because I remember you always answer to anyone coming up with a PRO*C question ...
<g>

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-----
Sent: Thursday, April 10, 2003 7:25 PM
To: Multiple recipients of list ORACLE-L

Fiddling with the SGA doesn't cause a database crash, you just have to make sure that you attach the SGA in readonly mode.

Anjo.

Original Message ----- To: Multiple recipients of list ORACLE-L <mailto:ORACLE-L_at_fatcity.com> Sent: Thursday, April 10, 2003 11:58 PM

Raj,

Why are you trying to access the SGA? There are plenty of dynamic performance views to extract data from & messing with the SGA may cause your DB to crash.

Dick Goulet
Senior Oracle DBA
Oracle Certified 8i DBA

-----Original Message-----
Sent: Thursday, April 10, 2003 5:39 PM
To: Multiple recipients of list ORACLE-L

Has anyone been able to make direct SGA access work for 64 bit databases? My C knowledge is as good as my lisp knowledge, i.e. just about zero.

I tried playing with the xksuse.c, but all it does is dumps core ...

If anyone has done this successfully, could you please let me know what needs to be changed in the code?

Thanks in advance
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 !

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Author: Jamadagni, Rajendra
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Received on Fri Apr 11 2003 - 09:37:26 CDT