The message "OGG Capture client successfully detached from GoldenGate capture" functions as the silent handshake of Oracle's Integrated Capture architecture. It is the final, peaceful goodbye between an Extract process and the database mining server when a stop is issued.
This message will be preceded or immediately followed by fatal error codes like OGG-00664 or OGG-02071 . Step-by-Step Troubleshooting
: If accompanied by an error (like OGG-01668 ), it indicates the process stopped unexpectedly due to a missing trail file or privilege issue. Troubleshooting Steps The message "OGG Capture client successfully detached from
Look for trailing errors, memory allocations, or specific ORA- errors right before the process terminated. Step 2: Cross-Reference the Database Alert Log
If you see this message in conjunction with a STOP command you initiated, it is a sign that GoldenGate is working exactly as intended. It confirms that the database has successfully reclaimed the memory and processes (Logminers) dedicated to that Extract. However, it is a red flag if: Step-by-Step Troubleshooting : If accompanied by an error
During the shutdown sequence, the Extract client flushes its buffers, checkpoints its current position, and tells the database engine it is disconnecting. This logs the successful detachment message. B. Extract Process Restart or Abort Recovery
Investigate further. Look at preceding errors like ORA-03113: end-of-file on communication channel or OGG-01028 . It confirms that the database has successfully reclaimed
In a healthy environment, this message appears during routine administrative operations. You will see a detachment occur whenever a running Extract process is stopped gracefully. The sequence is:
A common scenario that database administrators and data engineers encounter is finding that the OGG Extract process has stopped, with the alert log showing the message: .
Examine the master log file ( ggserr.log ) located in the GoldenGate installation directory to see the chronological events leading up to the detachment. GGSCI> view report EXTNAMES Use code with caution.