Undo Tablespace Growing Fast in Oracle Database – Complete Oracle DBA Troubleshooting Guide A rapidly growing UNDO tablespace is one of the most common concerns for Oracle Database Administrators. In many production environments, DBAs notice that the undo tablespace suddenly consumes large amounts of storage or continues growing until it reaches its maximum size. Although this behavior often appears to indicate a problem with the undo tablespace itself, it is usually a symptom of increased database activity rather than a fault in Oracle. Large transactions, long-running queries, bulk data loads, batch processing, online application workloads, and flashback operations can all generate significant amounts of undo data. Since Oracle Database 9i, Oracle has used Automatic Undo Management (AUM) to manage undo information automatically. Modern Oracle releases, including Oracle Database 11g, 12c, 18c, 19c, 21c, and 23ai, rely on AUM to maintain transaction consistency, support...

/tmp Folder 100% Full in Linux – Complete Troubleshooting Guide for Linux & Oracle DBAs A 100% full /tmp directory is one of the most common Linux administration problems encountered by System Administrators, Oracle Database Administrators, Oracle E-Business Suite Application DBAs, and DevOps Engineers. Although it may initially appear to be a simple disk space issue, a full /tmp filesystem can prevent applications from creating temporary files, cause software installations to fail, interrupt Oracle patching activities, stop Oracle E-Business Suite services, and even prevent users from logging into the operating system. Oracle Database installations, Oracle Grid Infrastructure, Oracle E-Business Suite cloning, OPatch, AutoConfig, RMAN operations, Java applications, package managers, and numerous Linux utilities all rely on the /tmp directory for temporary storage. When this filesystem becomes full, administrators often delete files immediately to reclaim space...

adapcctl.sh Exiting with Status 1 in Oracle E-Business Suite R12 – Complete Oracle Apps DBA Troubleshooting Guide The adapcctl.sh exiting with status 1 error is one of the most frequently encountered Oracle E-Business Suite Application Tier issues. It indicates that the Oracle HTTP Server (Apache) failed to start successfully when executed through the adapcctl.sh utility. This error can occur in Oracle E-Business Suite 11i, R12.1, and R12.2 environments during routine administration, application cloning, patching, AutoConfig execution, operating system maintenance, SSL configuration, or after unexpected server shutdowns. Although the message itself appears simple, "Exiting with status 1" is only the final return code. The actual root cause is almost always recorded elsewhere within the Oracle EBS technology stack logs. In production environments, this error is commonly caused by stale Apache lock files, invalid Apache configuration files, AutoConfig inco...

All Receiving Transactions Fail with rvtptcontrol Error Description: All Receiving transactions fail with rvtptcontrol. After some research work I found that the error occurs when many transactions fail with same error it is usually because the receiving executables (RVCTP and RCVOLTM) are out of sync. Solution: 1.       Resolve INVALID Objects 1.1   Set environment 1.2   cd $ORACLE_HOME/rdbms/admin 1.3   sqlplus / as sysdba 1.4   SQL>@utlrp.sql 2.       Relink Receiving executables 2.1   cd $AD_TOP/bin 2.2   sh adrelink.sh force=y ranlib=y "PO RCVOLTM" 2.3   sh adrelink.sh force=y ranlib=y "PO RVCTP" 3         Bounce Receiving Transaction Manager: 3.1   (System Administrator > Concurrent > Manager > Administer) 3.2   Deactivate Receiving Transaction Manager 3.3   ps -ef | grep RCVOLTM (repeat until n...

ADCFGClone.pl DBTier Failed with RC-00110: ApplyDBTechStack Relinking Error The ADCFGClone.pl DBTier Failed with RC-00110 error can occur during Oracle E-Business Suite Rapid Clone configuration when the database technology stack cannot be successfully configured on the target system. In one real-world troubleshooting scenario, the failure occurred during the ApplyDBTechStack phase of the Oracle E-Business Suite database-tier clone. The high-level error was: RC-00110: Fatal: Error occurred while relinking of ApplyDBTechStack The underlying cause was identified in the detailed log as a file permission problem involving: AC-00444: Unable to write to file FileNotFoundException: $ORACLE_HOME/oui/bin/runInstaller.sh (Permission denied) The problem was resolved by correcting the permission on the affected file and then rerunning the database-tier configuration using the target context file. What You Will Learn What RC-00110 means during Oracle EBS Rapid Clone Wh...