OGG-30598
The WalSender has unexpectedly closed the client connection and terminated the stream with error: {0} Committed LSN: {1}, Record LSN: {2}, TxID: {3}, TimeStamp: {4}, For Table: {5}, opType: {6}. This can be caused when an active publication is dropped midstream. Check whether the publication(s) being used in Extract has been suddenly deleted.
Cause
The WalSender has unexpectedly closed the client connection to the log reader because the publication containing metadata tied to the log reader, was dropped. When a publication is dropped, the references to articles/tables (such as last LSN value etc.) that it was using, are lost, and the log reader's internal state becomes invalid.
Action
Check whether the publication(s) being used in Extract has been suddenly deleted or not in the db. Check the Extract report file for additional errors to help diagnose and resolve issues. Contact Oracle support if you need further assistance.