Ogg Capture Client Success!!install!! Fully Detached From Goldengate Capture Instant
The most common reason you see this message is a manual stop of the Extract process. When you issue the command STOP EXTRACT in GGSCI or Admin Client, the process finishes its current task and sends a detachment signal to the database to release resources. 2. Process Restart or Re-initialization
From the database's perspective, when a GoldenGate Extract client is up and running, the capture process is marked as . Conversely, if the Extract client stops normally (e.g., via STOP EXTRACT in GGSCI), the capture process remains active but enters a DETACHED state. This is an important and often-misunderstood nuance: the detachment itself is usually normal . The capture process continues to mine the logs and hold the position, waiting for the Extract client to reattach and resume reading.
2025-05-23 14:00:01 ERROR OGG-02717 Unable to allocate LogMiner session. 2025-05-23 14:00:01 INFO OGG-06408 OGG capture client successfully detached...
Sometimes the database side of the capture engine stalls or fails. You can check the health of the deployment's database components by running this SQL query as a DBA:
Check the Oracle Database alert log for corresponding Logminer or Streams pool events. Look for parallel execution messages, memory resizing operations, or ORA-errors occurring at the exact same timestamp. Resolution and Prevention Strategies The most common reason you see this message
Check GGSCI history or admin client logs.
This client-server relationship is key. The ogg capture client successfully detached message logs the moment the GoldenGate gracefully disconnects from the database’s capture process .
This is entirely normal. You will always see this message when you manually stop a running Integrated Extract.
Ensure that the source database is properly operating in ARCHIVELOG mode. If the capture process cannot access required logs, it may force a detachment. Conclusion The capture process continues to mine the logs
When you restart an Extract, it must first shut down the old session. You will see a "detached" message for the stopping process, followed shortly by a "bound" or "attached" message for the new process. 3. Network or Timeout Issues
A typical message looks like this, as seen in a database alert log:
Review the Oracle Database alert log around the exact timestamp of the detachment. Look for LogMiner or Streams errors, such as: ORA-04031 : Unable to allocate memory from the Streams pool. ORA-01291 : Missing logfile. Step 3: Verify Streams Pool Allocation
It is the equivalent of a fighter jet smoothly disengaging from an aerial refueling tanker. There is no spark, no clang, no crash. Just a clean, precise decoupling. The Capture Client, that tireless worker, sets down its tools. It writes its final checkpoint to disk, closes its handles to the log files, and bows out. The database, free from its observer, continues its processing unencumbered. free from its observer
Essentially, the database is acknowledging that the GoldenGate process has stopped requesting data and the session has been closed cleanly. Common Scenarios Where This Occurs
The message is a standard informational log entry in Oracle GoldenGate. It indicates that an Extract process (the "capture client") has cleanly disconnected from the database logmining server. Overview of the Message
This indicates that the communication link between the GoldenGate Extract process (the client) and the database logmining infrastructure has been cleanly and intentionally severed or terminated without causing corruption.