Ogg-01184 Expected 4 Bytes But Got 0 Bytes In Trail ((exclusive)) < ESSENTIAL >

The Replicat may have processed all available data and is attempting to read the next trail file in the sequence. If the Extract process on the source has stopped or is lagging significantly, it might not have created the next trail file yet, or it has created a placeholder file that is currently empty.

The error in Oracle GoldenGate—typically phrased as "Expected 4 bytes, but got 0 bytes in trail" —is a critical failure indicating that a process (usually a Pump or Replicat) cannot find the expected record trailer token at a specific Relative Byte Address (RBA) in the trail file. Core Cause: Trail File Corruption ogg-01184 expected 4 bytes but got 0 bytes in trail

In remote trail scenarios, network interruptions can lead to mismatched record lengths between the source and target files. The Replicat may have processed all available data

The hydrophone had been listening to a trench no one had mapped. And something down there, she realized with a cold wash of certainty, did not want to be known. It had reached up through the file system — not corrupting, not deleting, just un-writing the last four bytes of every copy. Core Cause: Trail File Corruption In remote trail

; it should automatically fetch the missing data from the source trail files. Oracle Help Center Option 3: Manual Trail Regeneration (ETROLLOVER)