If the file is non-zero bytes but is corrupted (Logdump shows errors), you have a data loss risk.
Oracle GoldenGate (OGG) is a robust tool for real-time data integration and replication. However, administrators occasionally encounter errors that disrupt data pipelines. One such disruptive error is .
Set up automated monitoring (e.g., Prometheus, Nagios, or OEM) to trigger alerts when disk space on GoldenGate directories exceeds 80%. ogg-01184 expected 4 bytes but got 0 bytes in trail
The copy on her drive had a trail of zero bytes.
The error log was stark:
Monitor the process to ensure it passes the checkpoint smoothly.
What (e.g., EXT4, NFS, ACFS) hosts your trail files? If the file is non-zero bytes but is
+-------------------------------------------------------------+ | Record Header | Data Payload | Record Trailer | | (Metadata) | (Insert/Update/Delete) | (4 Bytes) | +-------------------------------------------------------------+ ^ OGG-01184 Fails Here (Expected 4 bytes, got 0)
Navigate to the dirdat directory and check the file size: ls -l ./dirdat/no000007 Use code with caution. One such disruptive error is
Use the TCPBUFSIZE and TCPFLUSHBYTES parameters within your Extract and Pump parameter files to ensure network packets are optimized for high-throughput data replication, minimizing network-induced file drops.
To verify the integrity of these records, GoldenGate appends a to the end of every individual record block. When a downstream process—such as a Data Pump or a Replicat—reads the file, it expects to find these 4 trailing bytes. If it reads a record header and the data but encounters a file size of 0 bytes immediately afterward, it triggers OGG-01184 and shuts down safely to prevent data misalignment. Root Causes of OGG-01184