We have EBS R12.1.3 and DB is 188.8.131.52
We have 2 node DB and 4 node Apps servers.
app1 - app
app2 - cm
app3 - cm
app4 - DMZ
a) To configure PCP, do I need to update the context file in all 4 nodes ?
b) Do I need to edit manually?
c) changing through autoconfig will change on all 4 node?
For detailed reference, please refer following Note
Using Oracle 12c Release 1 Real Application Clusters with Oracle E-Business Suite Release 12 (Doc ID 1490850.1)
Configuring and Managing Oracle E-Business Suite Release 12.1.x Application Tiers for Oracle RAC (Doc ID 1311528.1)
How To Activate Parallel Concurrent Processing In R12 (Doc ID 1525233.1)
Hope this helps