Ogg-01184 Expected 4 Bytes But Got 0 Bytes In Trail — Authentic

OGG-01184: Expected 4 bytes but got 0 bytes in trail

The error is a critical Oracle GoldenGate message indicating that a process (usually a Pump or Replicat) failed to read a mandatory 4-byte record trailer token from a trail file. This typically occurs when a record is incomplete or the file has been truncated prematurely. Understanding the Root Causes

If the file is non-zero bytes but is corrupted (Logdump shows errors), you have a data loss risk. ogg-01184 expected 4 bytes but got 0 bytes in trail

Observe the last good record before 4820192 . Is there a gigantic transaction? A LOB update? A BLOB ? Large transactions are often culprits because they span multiple trail blocks. OGG-01184: Expected 4 bytes but got 0 bytes

Checkpoint Mismatch:

Sometimes, the input checkpoint position for a Pump or Replicat is greater than the actual physical size of the trail file, leading the process to seek data that does not exist. Observe the last good record before 4820192