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Erman Arslan's Oracle Blog: RDBMS -- a Case Study: Suggestions for Performance Improvements, quick actions, utilizing the features for performance and the approach
Following is based on a real life performance problem, which was encountered on a very critical Oracle Database 19C Production System. While...
Erman Arslan's Oracle Blog: RDBMS 19C -- Tablespace and File I/O Stats missing in AWR reports / real fix -> dbms_workload_repository.modify_table_settings , flush_level
You may be hitting this bug even if your Oracle database version is 19C (even if it is 19.14..) You have a workaround (setting statistics_le...
Erman Arslan's Oracle Blog: RDBMS -- Oracle 12.1 - Problem accessing Web Service due to SNI Extension (Web Services failing with ORA-29263, Ora-29259 errors due to SNI Extension)
Intro: Oracle databases have the ability to integrate with many applications and systems today. Web services are frequently used during thes...
Erman Arslan's Oracle Blog: OBIEE 12C / Weblogic -- Authentication for user weblogic denied , The specified user failed to log in. javax.security.auth.login.FailedLoginException
This is about an OBIEE 12C issue that was escalated to me today. OBIEE admin was trying to implement a custom auth method for OBIEE, and due...
Erman Arslan's Oracle Blog: EBS 12.2 -- CPU patch failing due to wrong value in AD_APPS_JDBC_URL / adop : IO Error: The Network Adapter could not establish the connection
We love working on the weekend.. Patching the systems heavily :) Here is an issue that we dealt with in the last weekend while patching an E...
Erman Arslan's Oracle Blog: EBS 12.2 -- Failed to load webapp: /OA_HTML , java.lang.NullPointerException , WebAppModule.java:397 & ClassFinderMetaDataEnumaration.java:32
Today, I want to share an interesting issue that I came across in an EBS 12.2 environment. The issue started after applying an EBS CPU... Wh...
Erman Arslan's Oracle Blog: Oracle Systems Event -- "Maximizing The Gains and Carrying Them Into The Future with Oracle Systems", Exadata, PCA, ODA, ZFS, PMEM, PMEM Commit and Data Accelerators, ROCE, KVM, OCI, ATP and more.
At yesterday's event, I shared my experience on positioning Oracle Systems on mission critical customer environments ((including Core Bankin...