Ogg-01184 Expected 4 Bytes But Got 0 Bytes In Trail __hot__ ✪

Reposition it to the start of the next valid trail file using: ALTER REPLICAT , EXTSEQNO , EXTRBA 0 For Extract/Pump:

Action. Contact Oracle Support. The trail file may be corrupted. Oracle Help Center Extract & Pump Abends — oracle-mosc ogg-01184 expected 4 bytes but got 0 bytes in trail

The error is a critical Oracle GoldenGate failure that occurs when a process (typically a Replicat or Data Pump) attempts to read a record trailer at a specific Relative Byte Address (RBA) but finds an empty or truncated file section. This mismatch between the expected record length and the actual data available usually indicates trail file corruption . Core Causes of OGG-01184 Reposition it to the start of the next

To avoid OGG-01184 in production:

EOF encountered No more records

The most common cause is a corrupted trail file where the expected 4-byte record trailer is missing, often due to unexpected system shutdowns, disk space issues, or network interruptions during file transfer. Checkpoint Mismatch: Oracle Help Center Extract & Pump Abends —

the corrupted trail file (and any subsequent ones) from the target system's dirdat directory.