4.28.2009

Oracle 11g Scheduler book by Packt Publishing

Mr. Ronald Rood wrote a book on Oracle Scheduler, titled 'Mastering Oracle Scheduler in 11g Oracle Databases' and the book will be out somtime in May. 


When publishers were seeking for technical reviewrs on this book,  I have shown my interest to be part of the reviewers team.  My inital impression on this book was not satisfactory one, I ask myself, a book on Scheduler?.  Beleive me, after reviewing the book, I realized the real strngths of Oracle Scheduler and how it can be utilized flly in complex scenarios.  Now, I am really happy to be part of the reviewers team for this book and I did learn few new Oracle 11g Scheduler enhancements and planning to implement few some of the features that suits to our requirements.

The book is due this May and for more details and pre-order details, you can use the following link:

4.20.2009

Oracle to acquire SUN?

I have seen couple of mails today on freelist group stating about the news, 'Oracle going to acquire SUN'. Umm.. quite interesting deal, one has to wait and see what would be the reaction of HPUX, specially after their (Oracle and HPUX) recent exadata innovation and IBM reaction on this deal.



Happy reading

Jaffar

4.19.2009

Node slave process (pz99) on 10g RAC

We have observed a strange slave process, 'pz99' on our RAC databases for every connection to the database and we were wondering what type of processes are they. Thank god our doubt was cleared without much hassles. According to ML Doc :734139.1 'From Oracle 10g onwards you will find on every node slave processes like pz99. This are the processes that query the gv$ views'


Happy reading

Jaffar

3.17.2009

Oracle DB & RAC 10gR2 on IBM AIX : Tips and Considerations by Erik Salander

While browsing this afternoon, I have come across of 'Oracle DB & RAC 10gR2 on IBM AIX: Tips and Considerations'
paper by Erik Salander. Well, if you have any planns to setup RAC on AIX, I recommend you to have a look at this paper.

If you wanna need the abstract of this paper before you want to download, here it is:

This paper consolidates the information that needs to be considered when implementing and Oracle Database 10gR2 or Oracle RAC (Real Application Clusters) 10gR2 on AIX 

This paper is written to a level of detail that assumes readers have an in-depth knowledge of AIX , Oracle Database 10g, Oracle RAC 10g and the related products.


Happy Reading,

Jaffar

3.16.2009

How to startup RAC database services automatically

As of Oracle 10gR2 (10.2.0.4 patch set) when RAC database is started with 'srvctl start database -d DBNAME', unfortunately, the associated database services do not startup automatially. Therefore,   services must be started manually after the database startup. It could be painfull in some situations, like, when you have many databases running on RAC with daily or weekly cold backup schedule. When services are not up, clients unable to connect to the respective databsases, in case they use the service name to connect to the database.


A possible workaround is to write  FAN server side callouts. You may download perl scripts, 'Start Services on Instance Up' from http://www.oracle.com/technology/sample_code/products/rac/index.html. Its a smaple perl script which can be used to as a FAN Server Side callout to start services when an instanes up event is received on the node. You need to put the scripts under $CRS_HOME/racg/usrco. The PDF contains the procedure how to deploy the scripts, setting permission and other stuff.

In 11g,  When services are already started on some remote nodes, then the startup of the instance on the local node will autostart the services on it.

References:

ML 416178.1: After Srvctl Start Database, Database Services Will Not Start Up Automatically
http://www.oracle.com/technology/sample_code/products/rac/index.html
http://www.oracle.com/technology/products/database/clustering/pdf/twpracwkldmgmt.pdf
http://download-west.oracle.com/docs/cd/B19306_01/rac.102/b14197/hafeats.htm#sthref374

Happy reading,

Jaffar