Large Oracle RAC Databases Performance on MPP Machines

How performance issues are occurring in massively parallel processing systems for Oracle RAC database. For understanding root cause, we need to understand MPP architecture.
By: Database Support
 
Feb. 12, 2012 - PRLog -- In contrast to the group, with only a few nodes are connected to large parallel processing (MPP) systems to be connected with all nodes. There are thousands of nodes, MPP systems. Each of these nodes is an independent system has its own processor, hard drive, memory controller and an internal bus system "in general terms," shared nothing architecture. All these nodes are by using a rapid means for the band. Each node has its own copy of the operating system. MMP is installed in the architecture of Oracle RAC mode.

http://www.dbametrix.com/remote-dba.html

Each Oracle instance for each node is responsible for all means, read the entire database and find out which node is the lock on the database. If this is something that is locked by another node is needed, i.e., between the anti-dumping cases are to be saved on disc one, after the changes. Request a typical database would violate a node, the data from memory or hard disk to be loaded, while the corresponding node, and returns through a data connection to the requesting node. Each node maintains its own set of wheels and can be controlled in another, when a node fails. Therefore, all nodes are configured in a combination of primary or primary and secondary school. The database files are located in priority areas, taking the central node and redundancy necessary to take the place of the primary tumor on the left.

http://www.dbametrix.com

The main drawback of the MPP architecture is not architecture per se, but a typical application is to design defects. Application developers also have experience in implementing programs on the machine skimmed milk. However, the MPP architecture requires a paradigm shift in the nodes exchange data and data analysis, such as reducing ping nodes. Because each node has a share nothing architecture independent, each situation, the node acts as a source of information exchange with heavy traffic on the link to work. This creates serious problems for Oracle RAC. Running Oracle RAC is bad depends on your hardware architecture. You must answer the hardware architecture and operating system deployment, pretreatment of Oracle Application Cluster configuration really considered. Otherwise, there will be plenty of problems and use materials from their database stops high.

Sometimes large systems are working wonderfully while using massively parallel processing MPP. But under some circumstances it doesn’t provide any kind of performance boost due to system architecture is different and not supported for OLTP database server. Of course, in some scenarios, like decision support system or data warehousing it provides best results.

About Dbametrix Solutions:
A leading database support provider company and offering non-stop database dba services to global client as per requirement and cost effective solutions with response based support. For more detail of Oracle support, kindly check web site. http://www.dbametrix.com

# # #

Expert remote Oracle DBA team offers remote dba support,remote dba services,remote dba work,remote database monitoring,database services,outsourcing with very low cost plan using SLA.
End
Source:Database Support
Email:***@dbametrix.com
Posted By:***@dbametrix.com Email Verified
Tags:Oracle Rac, Oracle Dba, Database Dba, Database, Oracle Rac Installation, Dbametrix, Database Support
Industry:Technology, Services, Software
Location:Skokie - Illinois - United States
Account Email Address Verified     Account Phone Number Verified     Disclaimer     Report Abuse
Dbametrix Solutions PRs
Trending News
Most Viewed
Top Daily News



Like PRLog?
9K2K1K
Click to Share