About Us

 Welcome to Davis Apps DBA!

About the Author My name is Davis Kavin, and I am an experienced Oracle Apps DBA, WebLogic administrator, and Infrastructure specialist. I created this platform to share hands-on technical solutions, real-world troubleshooting guides, and best practices for enterprise database management and server optimization.

What You Will Find Here On this site, I write detailed, step-by-step technical guides covering:

  • Oracle Database Administration & OEM 13c Configuration

  • Oracle E-Business Suite (Apps DBA) Maintenance & Patching

  • Oracle WebLogic Server Optimization & Cache Initialization

  • Oracle Cloud Infrastructure (OCI) & Enterprise Linux Troubleshooting

Our Mission As enterprise environments become more complex, resolving critical server logs and database errors quickly is essential. The objective of Davis Apps DBA is to provide clear, actionable, and thoroughly tested terminal commands and scripts to help system administrators and DBAs resolve complex infrastructure issues with confidence.

Thank you for visiting, and feel free to reach out via our Contact Us page if you have any questions or feedback!

Comments

Post a Comment

Popular posts from this blog

Common R12.2 adcfgclone Issues

ERROR: Failed to configure the target system – Failed to enable EBS_LOGON trigger The clone procedure for EBS R12.2 is quite different when compared with EBS R12.1. This post covers very generic   issues we may encounter while configuring the target server as a part of clone Process. ERROR : 1 Checking the port pool 6 done: Port Pool 6 is free Report file located at /u01/appl_PROD/PROD/fs2/inst/apps/PRODERP_erpnode3/admin/out/portpool.lst The new APPL_TOP context file has been created : /u01/appl_PROD/PROD/fs2/inst/apps/PRODERP_erpnode3/appl/admin/PRODERP_erpnode3.xml Check Clone Context logfile /u01/appl_PROD/PROD/fs1/EBSapps/comn/clone/bin/CloneContextPatch_0811105848.log for details. FMW Pre-requisite check log file location : /u01/appl_PROD/PROD/fs1/EBSapps/comn/clone/FMW/logs/prereqcheck.log Running: FMW pre-req check... ERROR: Run file system configuration has failed Check the logfile /u01/appl_PROD/PROD/fs1/inst/apps/PRODERP_erpnode3/admin/l...
Read more

REP-3000: Internal error starting Oracle Toolkit

Image
REP-3000 Issue is very common in Oracle Apps environments. If this issue persists, concurrent programs will complete with error code(Whose output is in PDF format). Generally this affects the OPP operations. I've faced this issue in both Linux and Unix platforms. The reason for this issue is common on both the platforms. Improper setting of the DISPLAY variable is the reason for this issue. In my environment, I recently faced this issue in EBS 11i Instance which runs on RHEL-5.11. Below are the detailed step by step process I followed to overcome this issue. When submitted 'Active Users' report it completed with error. When checked the log file found the below issue. Here it is understood, the issue is due to improper DISPLAY variable setting. So I start to work on setting the DISPLAY variable properly. In my server, display variable is set to value "localhost:10.0". Now I need to check whether this value is proper and can open xclock and windows using this Displa...
Read more

Error 404 -- Not Found From RFC 2068 hypertext Transfer Protocol -- HTTP/1.1

Image
In my environment we are having EBS(12.2.5) running with 12.1.0.2 database. One day in our DEV Instance  Front-End is not opening and faced the below error. So I followed the below steps as a solution and it worked. First, generate the JAR files Next, reload the generated jar files to the respective database  Now compile the APPS schema to reduce the count of Invalid objects. Once everything completed, you can clear your browser cache and try to login to the application., but normally the above steps will be accompanied by clearing the middle tier cache. So I gave the below steps to clear the middle tier cache from backend. To clear the cache, follow the below steps. Stop the application services Navigate to $OA_HTML/cabo/images/cache Take a backup of contents of the folder cache and then clear all the contents inside that cache folder Navigate to $OA_HTML/cabo/styles/cache Take a backup of contents of the folder ca...
Read more