0 Bytes In Trail ((free)): Ogg-01184 Expected 4 Bytes But Got

: The process reached the end of the trail file earlier than expected, often because a previous write operation (by an Extract or Pump) was interrupted before the record trailer could be written. Checkpoint Mismatch

This guide delivers the root causes, immediate workarounds, and permanent fixes to resolve this error. Understanding the Error

A: If you cannot resolve the issue using the steps above, or if the problem recurs frequently after you've implemented preventative measures, it's time to contact Oracle Support. The official Oracle documentation itself states that the action for this error is to contact support for help. They have advanced diagnostic tools to analyze core dumps and deeply corrupted trail files. ogg-01184 expected 4 bytes but got 0 bytes in trail

If the source Data Pump failed, you can force it to recreate the trail file from the last known good position on the source. Stop the Data Pump: GGSCI> stop pump_name Use code with caution.

When the Extract process reads a trail, it acts like a strict parser. It reads the first 4 bytes to say, "Okay, the next block of data is X size." In this case, the process moved the file pointer to a specific offset, reached out to grab the 4-byte header, and grasped nothing. It hit the End of File (EOF) marker prematurely. : The process reached the end of the

Oracle GoldenGate relies on —highly structured binary files written by the primary Extract process—to pass transaction logs down the pipeline. Every logical record block inside a trail file includes structural metadata, notably a record header and a corresponding trailer token that verifies the boundary and validity of the recorded transaction block.

Action. Contact Oracle Support. The trail file may be corrupted. Oracle Help Center Extract & Pump Abends — oracle-mosc The official Oracle documentation itself states that the

Do not use unlimited file sizes. Force rollover to reduce blast radius:

Issue an ETROLLOVER command to create a brand-new trail sequence number, bypassing the broken record: ALTER EXTRACT extract_name, ETROLLOVER Use code with caution.

To help me tailor a more specific recovery strategy, could you tell me whether this error is occurring on your or Target Replicat process? Additionally, sharing your GoldenGate version or whether you have adequate disk space on the target server would be very helpful. Share public link