A: "Attached" occurs when you start an extract. It establishes the connection to the LogMining server. "Detached" is the inverse – the clean termination.
In the complex ecosystem of log mining, where redo logs spin, SCNs advance, and data never sleeps, a clean detach ensures that no data is lost and that the next start will be flawless. For the vigilant DBA, the real work begins not when you see this message, but when you see it after an expected stop. An absent "successfully detached" log line is a far bigger warning than the message itself. A: "Attached" occurs when you start an extract
A: Yes, absolutely. Filter on severity: Info level. Alert only on ERROR or WARNING . But log retention of these "detach" events helps when auditing change windows. Conclusion: A Sign of a Healthy System The message "OGG capture client successfully detached from GoldenGate capture" should not invoke fear. Instead, it should be viewed as a stamp of approval from the GoldenGate engine that a shutdown sequence was handled with integrity. In the complex ecosystem of log mining, where
A: Almost never. A "successful" detach requires a final checkpoint. However, if you force-killed the extract, you wouldn’t see this message – you’d see an OGG error instead. A: Yes, absolutely
In all these cases, you will see the line after the failure, acting as a confirmation that the client gave up and disconnected cleanly. Part 6: Best Practices for Managing Integrated Extracts To ensure that "detached" always remains a benign message and never a sign of a forced disconnect, follow these best practices: 1. Use Graceful Stop Commands Always use STOP EXTRACT <name> (without ! or ABORT ). Aborting an extract bypasses the graceful detach and can leave orphaned LogMining sessions on the database.
A: This indicates a mis-timestamped log or a zombie process. In normal cases, a detached client = stopped process. Use kill -3 on the process ID to verify.