In the clustered environment, FILE and FTP adapters should be used as HA (High-Availability) 

Inbound: It is controlled by Control Files and avoids the race between the MANAGES servers in reading the files where the reference of the files read by the managed servers will be maintained in the control directory. 

Outbound: It is controlled by DB Mutex table exist in the SOA dehydration STORE and this avoids DUPLICATED been written to the same file when all the managed servers in the clusters process the same messages.

In the clustered environment, File and FTP adapters should be used as HA (High-Availability) 

Inbound: It is controlled by Control Files and avoids the race between the manages servers in reading the files where the reference of the files read by the managed servers will be maintained in the control directory. 

Outbound: It is controlled by DB Mutex table exist in the SOA dehydration store and this avoids duplicated been written to the same file when all the managed servers in the clusters process the same messages.