Comment 1 for bug 1354026

It looks like RABBITMQ_NODE_ONLY environment variable is the problem here.

RABBIT* environment vairables for the "beam" process started via init script (with working plugins):
RABBITMQ_PID_FILE=/var/run/rabbitmq/pid
RABBITMQ_NODE_PORT=5673

RABBIT* environment vairables for the "beam" process started via OCF (with not working plugins):
RABBITMQ_NODE_ONLY=1
RABBITMQ_NODENAME=rabbit@node-4
RABBITMQ_PID_FILE=/var/run/rabbitmq/pid
RABBITMQ_NODE_PORT=5673

For the experiment purpose I've remove RABBITMQ_NODE_ONLY=1 from OCF script and executed "crm resource restart p_rabbitmq-server" - rabbit has started with plugins:

/<email address hidden>: Server startup complete; 6 plugins started.