Ogg-01184 Expected 4 Bytes But Got 0 Bytes In Trail • Proven

This assumes you have file-level backups. If not, implement them immediately after recovery. Solution 4: Abort and Full Resync (Nuclear Option, Zero Data Loss but High Downtime) When corruption is widespread and no clean RBA exists, or if your replicat was far behind:

TransInd: 1 (First record of transaction) XID: 3.27.12345 Add a FILTER or MAP exception in the Replicat parameter file:

| Field | Size | Description | |-------|------|-------------| | Record Length | 4 bytes | Indicates the total size of the following data | | Record Data | Variable | Actual change data in canonical format | | Checksum (optional) | 4 bytes | Integrity check | ogg-01184 expected 4 bytes but got 0 bytes in trail

You lose exactly one transaction. You must manually reconcile that row(s) later. Solution 2: Use LOGDUMP to Skip to Next Good Record (Medium Risk) If the corrupt RBA is mid-transaction (TransInd = 2, 3, or 4), you cannot skip just one transaction without breaking referential integrity for that transaction’s group of operations.

ggsci> START REPLICAT rep01 If it abends immediately with the same RBA, the corruption is real. From the error message: This assumes you have file-level backups

When this happens, your target database stops synchronizing. Data latency begins to grow. And if not handled correctly, you risk data divergence between source and target.

2025-01-15 10:23:45 ERROR OGG-01184 Oracle GoldenGate Delivery for Oracle, rep01.prm: Expected 4 bytes but got 0 bytes in trail file /u01/gg/dirdat/rt000012, at RBA 4820192. 2025-01-15 10:23:45 ERROR OGG-01668 PROCESS ABENDING. The 4820192 is critical—it tells you exactly where in the trail file the corruption begins. Part 2: Immediate Diagnosis (Do Not Panic) When you see this error, follow these diagnostic steps before attempting any fix. Step 1: Verify the Error is Consistent Restart the replicat once to confirm it’s not a transient I/O glitch: You must manually reconcile that row(s) later

REPLICAT rep01 -- existing parameters MAP schema.table, TARGET schema.table, FILTER (@GETENV('GGHEADER','XID') != '3.27.12345'); Start the replicat with NOHANDLECOLLISIONS (if appropriate) or ALLOWNOOPUPDATES .