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SYSADMIN login performance issue in Oracle EBS R12

In our EBS system, we found that SYSADMIN login was slow. It was taking around 4-5 minutes to login and when inside the EBS application it was taking 2-3 minutes every time we were navigating in the self-service pages. This issue was not occurring for normal EBS users. We thought of applying the trace to SYSADMIN user to find the root cause of it.

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Oracle EBS R12 and TDE Tablespace Encryption

Keeping data secure is one of the primary job of DBA. Oracle’s Transparent Data Encryption Tablespace Encryption option of Oracle Database 11g Enterprise Edition provides an excellent method to encrypt data at rest. This option works perfectly with Oracle EBS R12.

The TDE Tablespace Encryption option can be used to encrypt the tablespaces that store the content of your E-Business Suite application so you can encrypt the database files and any backups of these files. Good thing about TDE is you do not have to change any of your existing code as TDE is transparent to application.

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EBS Database Parameter Settings Analyzer

All Oracle Apps DBA must have referred below Note id at least once in their career. Most of us refer it  during installation and upgrade of Oracle EBS
application to verify if we have right set if database parameters defined for the optimum performance of EBS application.

Database Initialization Parameters for Oracle E-Business Suite Release 12 (Doc ID 396009.1)

This document has all the required database parameters which are common to all the database release and which are required by EBS application. It also contains release specific database initialization parameters for different releases like 10g, 11g, 12c etc.

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The Applications File Server could not open the file for read in Oracle EBS

One of our EBS R12 instance was giving below kind of errors when users were trying to open the log and out files of Concurrent requests from EBS front end.

“The Applications File Server could not open the file /fs01/logs/appl/conc/log/l106163221.req for read”

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Reorg tables and indexes in Oracle EBS Applications – Best Practices

Usually in OLTP environment like EBS Applications, tables are often get fragmented due to multiple DML activities that happens.Fragmented tables cause queries on those tables to slow down. It is very important to de-fragment this table and to reclaim the fragmented space from these objects.

For EBS we have also seen  that usually gathered statistics, indexing and proper SQL tuning is plenty to improve and maintain acceptable performance but sometime it is required to reorg the table.

One primary cause of fragmentation is that when you run delete command on the tables it delete the rows but doesn’t frees up the memory and also do not changes the high water mark.

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Oracle EBS on Oracle Cloud – The changing role of Oracle DBA

Oracle E-Business Suite is one of the most comprehensive suite of integrated, global business applications used by many organization around the globe. Clients usually host E-Business Suite environment In-house which requires upfront investment and ongoing maintenance costs. This approach is proven to be non-scalable and non-flexible for the rapidly changing business needs. Cloud solutions are the way to go for these applications. Oracle Cloud Solutions with all their features and integrated security can handle the robust and complex architectures of the E-Business suite seamlessly. Oracle EBS on cloud can help organizations with its scalability, elasticity and performance at much lower costs.

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Output Post Processor (OPP) related issues in 11i/R12

Concurrent processing uses the Output Post Processor (OPP) to enforce post-processing actions for concurrent requests. Post-processing actions are actions taken on concurrent request output. An example of a post-processing action is that used in publishing concurrent requests with XML Publisher.

Apps DBAs have to sometimes troubleshoot issues related to OPP. Many a times issues are related to java memory with error messages like below:

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