Multiple Replication Agent instances allow transactions to be replicated in parallel along multiple independent paths, increasing replication throughput and performance, and reducing resource contention.
Using multiple Replication Agent instances with Replication Server
Multi-Path Replication™ enables the replication of data through different streams,
maintaining data consistency within a path but not adhering to the commit order across
different paths. Replication Agent for Oracle supports the use of multiple Replication
Agent instances to replicate Oracle tables and procedures.
Note: All Replication Agent instances in a common Replication Agent
group must be of the same version.
For a description of end-to-end Multi-Path
Replication scenarios, see the Replication Server Heterogeneous
Replication Guide.Configuration
In a Replication Server Multi-Path Replication scenario, multiple Replication Agent
for Oracle instances are grouped together and share common system resources to
coordinate in a Multi-Path Replication solution:
- Every Replication Agent for Oracle instance in a Replication Agent group must use the same value for the ra_admin_owner and ra_admin_prefix parameters.
- Each Replication Agent for Oracle instance in a Replication Agent group must use a unique value for the ra_admin_instance_prefix parameter. This parameter distinguishes Replication Agent for Oracle instances within a group.