Ogg Capture Client Successfully Detached From Goldengate Capture !full! Jun 2026

Sometimes, a DDL (Data Definition Language) operation is captured, but due to a configuration setting or filter, the Extract needs to ignore it. To do this cleanly, it detaches from the capture session to reset the state.

If a shutdown was unintentional or you need to resume operations, reattach the client by starting the Extract:

Oracle GoldenGate uses a "Capture" process (also known as Extract) to pull changed data from source database transaction logs. To do this efficiently, especially in Integrated Capture mode, the OGG Extract process registers as a client with the database’s logmining server.

ERROR OGG-00446 Unable to read from capture client. INFO OGG-00999 OGG capture client successfully detached from GoldenGate capture. Sometimes, a DDL (Data Definition Language) operation is

The Extract ran out of Streams pool memory or system RAM.

In Oracle GoldenGate (OGG), the message "OGG capture client successfully detached from GoldenGate capture"

Check the OGG process status via GGSCI. If the detachment was due to a stop command, the status should be STOPPED . To do this efficiently, especially in Integrated Capture

To understand detachment, one must understand the connection mechanism:

By confirming the successful detachment of the OGG capture client, you can ensure that your data replication processes are properly managed and resumed if necessary.

The most common cause is an administrative command. Issuing in GGSCI will gracefully detach the client from the Log Mining Server before stopping it. A successful detach ensures that no data is lost and that the Extract's checkpoint is written cleanly. The Extract ran out of Streams pool memory or system RAM

Check the ggserr.log and the Extract report file ( dirrpt/ .rpt ) to find the root cause of the crash. Common culprits include ORA-01291: missing logfile or trail file write failures.

While this message sounds like an error, it is an informational notification indicating that the GoldenGate client process has disconnected from the underlying Oracle LogMiner database server engine. Depending on the context, this behavior can either be completely benign or a key symptom of a major system crash. Anatomy of Integrated Capture Mode

While a "successful detach" is usually positive, the following conditions require attention: