cat $OGG_HOME/ggserr.log

: If this message is preceded by an "ERROR" or "PROCESS ABENDING" in the GoldenGate report file, it means the Extract encountered a critical failure (like a missing log file or permission issue) and detached as part of its failure sequence. Next Steps for Troubleshooting

If you are still experiencing this issue, please check the database alert log for the specific ORA-error code and ensure your GoldenGate version is patched to the latest recommended release. For further analysis, consider sharing: The output of VIEW REPORT The specific ORA- errors from the database alert log. OGG-02028 - Oracle GoldenGate Capture for Oracle

When you see the message "OGG capture client successfully detached from goldengate capture," it means the GoldenGate Extract process (the client) has cleanly terminated its connection to the database-side logmining server. Common Causes of Detachment

Review the database alert log around the exact timestamp of the detachment. Look for corresponding errors such as:

If your integrated capture has detached and stopped, follow these steps to diagnose and remediate the issue. Step 1: Check the Extract Report and Alert Log

In all these cases, you will see the line after the failure, acting as a confirmation that the client gave up and disconnected cleanly.

In the world of Oracle GoldenGate for Big Data and classic integrated capture, this message signifies a specific and critical event in the lifecycle of a Extract process. Misinterpreting it can lead to unnecessary troubleshooting, while understanding it can help you architect more resilient replication pipelines.

A: "Attached" occurs when you start an extract. It establishes the connection to the LogMining server. "Detached" is the inverse – the clean termination.

Bad: STOP EXTRACT * ABORT (if used on a single extract unnecessarily). Good: STOP EXTRACT ext_sales .

In any Oracle GoldenGate (OGG) environment, managing capture processes is a routine but critical task. One operation that often raises questions is from an existing GoldenGate capture. Recently, I performed this operation successfully, and in this post, I’ll walk through what detachment means, why you might need it, and how to do it cleanly.

Use grep or less on the Extract report file ( .rpt ). Look for:

The GoldenGate processes were stopped for patching, maintenance, or configuration changes. 2. GoldenGate Extract Failures (Abends)

GGSCI> DETACH EXTRACT <extract_name>

When monitoring Oracle GoldenGate (OGG) environments, seeing the message in your alert logs or database trace files can cause immediate concern. While it sounds like a critical failure, this message is a standard operational notification regarding the interaction between the Oracle Database LogMiner infrastructure and the GoldenGate Extract process. What Does This Message Mean?

: The database was shut down (e.g., for patching), forcing all attached capture clients to detach as their host server was terminating.

Once you've identified a potential root cause, follow the appropriate resolution path.