Determines whether redo log threads for all nodes in an RAC database are scanned in parallel or with a serial scan.
This parameter is available only for Oracle and is used
only for Real Application Cluster (RAC) environments.
false
true – Replication Agent starts a redo log scan thread for each redo log thread in the RAC database. All redo log threads are scanned in parallel.
false – The redo log threads are scanned serially.
Parallel scan threads can improve performance and reduce read and process latency because all the redo log threads are scanned simultaneously.
The actual degree of parallelization that can be achieved depends on the hardware resources available and the number of nodes in the Oracle RAC database. Some environments may not have the resources to benefit from this configuration parameter.
