TAGGED POSTS / parallel replicat

Oracle GoldenGate Parallel Internals – my presentation from POUG 2018

Oracle GoldenGate Parallel Integrated Replicat – DML rearrangement in transactions

While preparing my presentation for POUG 2018 conference I have found some different behavior in Parallel Intgrated Replicat. This is a new Replicat type available from version 12.3. According to Oracle internal tests Parallel Replicat can be up to 5 times faster than Integrated Replicat in the same test case. I have done a number of tests with various options but one thing struck me. Every time the Replicat rearranges the order of DML operations. And there is no way to turn it off.

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Oracle GoldenGate Replicat Checkpoint table

In one of my previous posts I have described the rationale for using a checkpoint table in the Replicat process. This is a summary of all possible combinations of Replicat process and which of them are able of (not) using checkpoint table.

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