Ogg-01184 Expected 4 Bytes But Got 0 Bytes In Trail _verified_ Jun 2026

: The reading process calculates where the next 4-byte trailer token should be based on the record header.

Find the transaction ID (XID) of the corrupt record. In logdump :

If you are running a modern version of Oracle GoldenGate, you can add a temporary parameter to your Replicat parameter file ( .prm ) to handle unexpected EOF gracefully: Edit your Replicat parameter file: GGSCI > edit params REP1 Use code with caution.

If you are currently trying to fix this error on your system, let me know:

If the trail file is severely corrupted and data integrity is critical, you may need to delete and re-add the process or re-extract the data from the source. ogg-01184 expected 4 bytes but got 0 bytes in trail

: Unclean shutdowns of the source or target OS, storage failures, or virtual machine resets can disrupt buffered writes to disk.

: Ensure the filesystem is not full, as this often prevents GoldenGate from completing record writes. Oracle Communities Potential Resolutions Repositioning

Implementing proactive measures reduces the likelihood of encountering trail file corruption.

This error is not a simple configuration mismatch. It typically signals a serious structural problem in the trail file—the lifeblood of your GoldenGate replication. At its core, GoldenGate expected to read a 4-byte control field (usually a record length indicator or a checksum), but instead found an End-Of-File (EOF) marker or a null value (0 bytes). : The reading process calculates where the next

Before changing anything, use the GoldenGate logdump utility to inspect the exact location of the failure. Open Logdump from your GoldenGate home directory: ./logdump Use code with caution.

A typical error stack in the ggserr.log looks like:

If the corrupted file is in the middle of a sequence or contains critical data that cannot be skipped, you must regenerate it from the source system.

Check the actual size of the trail file on your operating system file system: ls -l ./dirdat/et000015 Use code with caution. If you are currently trying to fix this

Check the actual size of the trail file mentioned in the error log using OS commands (e.g.,

Review OS logs ( /var/log/messages or dmesg ). Look for "No space left on device" around the timestamp of the first OGG-01184 error.

Is the error occurring on the or the target (Replicat) ? Have you checked the available disk space on both servers? What Oracle GoldenGate version are you running?

Set up automated monitoring (e.g., Prometheus, Nagios, or OEM) to trigger alerts when disk space on GoldenGate directories exceeds 80%.

The Oracle GoldenGate Logdump Utility is the ultimate tool for evaluating file health. Open the corrupt trail file to inspect its exact end state:

If you need to skip just the broken bytes within the same file (rare for 0-byte errors), position it to the next valid RBA discovered via logdump : GGSCI> alter replicat rep_name, extrba Use code with caution. Restart the Replicat: GGSCI> start rep_name Use code with caution. Best Practices to Prevent OGG-01184