SCN generation in RAC

MAX_COMMIT_PROPAGATION_DELAY In A Real Application Clusters Environment (Doc ID 259454.1)

Best Practice: Leave Max_commit_propagation_delay=700 (default value )

The Lamport (default) propagation scheme is very efficient, and sufficient for
the vast majority of applications. Only a small percentage of RAC production
customers have had to change the default value of this parameter. If one can
ensure that the logical work unit is done on a particular instance then there
should be no requirement to need to change this parameter from its default.

Duplicate SCN Identified In Different REDO LOG Threads (Doc ID 260304.1)
Ordering Events in Oracle


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