Ogg Capture Client Success|best| Fully Detached From Goldengate Capture -

Integrated Capture relies heavily on database dictionary queries. Ensure dictionary statistics are regularly gathered via DBMS_STATS.GATHER_DICTIONARY_STATS to prevent performance degradation that can trigger timeouts between the client and the capture engine.

This message indicates that the OGG capture client, which is responsible for capturing data changes from a source database, has been cleanly separated from the GoldenGate capture process. This detachment is a normal operation that can occur for various reasons, such as maintenance, troubleshooting, or configuration changes.

To minimize unexpected detachments and ensure stable replication, implement these configuration standards:

GoldenGate ensures all data currently in the memory queues are written to the trail files. Detachment Message:

Older versions of GoldenGate or the database may have bugs related to how the manager processes handle automatic restarts after an ABEND , causing the detachment to persist rather than immediately reconnect. 4. Premature LogMiner Termination This detachment is a normal operation that can

Oracle GoldenGate (OGG) is a popular data replication and integration tool used by organizations to ensure data consistency and availability across multiple systems. One of the critical components of OGG is the Capture process, which captures changes made to the source database and sends them to the target system for replication. However, sometimes the OGG Capture client may detach from the GoldenGate Capture process, causing issues with data replication. In this article, we will explore the concept of OGG Capture client detachment, its causes, and how to troubleshoot and resolve the issue.

: Review the Oracle Database Alert Log for related errors like ORA-03113 (end-of-file on communication channel) or ORA-00600 , which would indicate the Logmining server itself crashed.

If the source database or an instance (in RAC) goes down, the capture client is forced to detach. Archive Log Unavailability:

If the Extract process encounters a data error (e.g., fetching from an un-logged table, encountering an unsupported data type, or hitting a bug) it will "abend" (abnormally end). This sudden death forces the database to log the detachment message. Step-by-Step Troubleshooting Workflow due to a scheduled maintenance window

-- Check the status of the capture process SELECT capture_name, status, state, client_name FROM dba_capture; -- Monitor the internal GoldenGate inbound/outbound server attachments SELECT component_name, session_id, serial#, state FROM v$gg_coordinate_info; Use code with caution.

Errors like OGG-01044 occur if the Extract parameter file refers to a trail that hasn't been officially added via 3. Step-by-Step Troubleshooting Guide Follow these steps to diagnose and restart the process: Step 1: Identify the Primary Error The "detached" message is rarely the root cause. Review the ggserr.log

None (if intentional). The database will now hold onto the required redo logs until the client re-attaches, preventing data loss. Common Scenarios for this Message: Manual Stop: You issued a STOP EXTRACT command in GGSCI. Maintenance:

Unlike Classic Capture, which directly reads online redo logs at the OS level, Integrated Capture leverages the database logmining infrastructure. The architecture splits the workload into two primary components: Maintenance: Unlike Classic Capture

An administrator manually executes STOP EXTRACT in the GGSCI or Admin Client console.

Are there any (like an ORA- or OGGLOG- code) right before this message?

The status should read STOPPED .

When the Extract process stops—whether manually, due to a scheduled maintenance window, or because of a database shutdown—it "detaches" from the mining server. The message confirms that the handshake between GoldenGate and the database engine has ended cleanly. Common Scenarios : You issued a STOP EXTRACT command in GGSCI .