The logs will show that all available data has been processed before the detachment message. 3. Subsystem Failures and Crashes
Because Integrated Capture runs inside the database, check the database dictionary views to see the status of the GoldenGate capture processes from the database perspective. Run the following queries as a DBA user:
The database Streams Pool is too small to handle the volume of logical change records being mined.
If memory exhaustion is suspected, check the current allocation of the Streams Pool. You can query the database using: SELECT purpose, status, bytes FROM v$streams_pool_advice; Use code with caution. The logs will show that all available data
When you see the message "OGG capture client successfully detached," it indicates that the with the database’s capture engine.
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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. Run the following queries as a DBA user:
The link between the GoldenGate Extract and the database LogMiner has been severed.
If the extract cannot be restarted, you may need to drop and re-register it: GGSCI> STOP EXTRACT
If there is a brief network flicker between the GoldenGate hub and the database server, the client might detach. If GoldenGate is configured with AUTORESTART , it may reconnect so quickly that you only notice the detachment message in the logs. 4. Database Maintenance When you see the message "OGG capture client
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At first glance, this is a dry, technical epitaph for a process. It signals the end of a Change Data Capture (CDC) session. But for those who have stared into the abyss of data synchronization, this line is not an ending; it is a lullaby. It is the sound of a clean break, a controlled stop, and a rare triumph over the chaos of logistics.
in your database alert logs or GoldenGate report files can be alarming, but it is often a routine part of the process lifecycle. The Core Mechanism This message is generated by the