Custom OCF resource agent fails with "unimplemented feature" error

Issue

• Custom OCF resource agent fails with unimplemented feature error.

• Pacemaker does not read my OCF RA script properly.

  Apr  2 15:08:55 node-a crmd[2172]:  notice: Result of probe operation for my_resource on node-a: 3 (unimplemented feature)
  

• A pacemaker error occurred:

  May 12 14:17:57 node42 crmd[1272]:  notice: Initiating action 2: monitor Zimbra_Service_monitor_900000 on node42 (local)
  May 12 14:17:58 node42 lrmd[1269]:  notice: Zimbra_Service_Monitor_800000:17145:stderr [ Usage: /usr/lib/ocf/resource.d/heartbeat/Zimbra {start|stop|reload|status|monitor|validate-all|meta-data} ]
  May 12 14:17:58 node42 crmd[1272]:  notice: node42-Zimbra_Service_Monitor_800000:135 [ Usage: /usr/lib/ocf/resource.d/heartbeat/Zimbra {start|stop|reload|status|monitor|validate-all|meta-data}\n ]
  May 12 14:17:58 node42 crmd[1272]: warning: Action 3 (Zimbra_Service_Monitor_800000) on node42 failed (target: 0 vs. rc: 3): Error
  May 12 14:17:58 node42 crmd[1272]:  notice: Transition aborted by Zimbra_Service_Monitor_800000 'modify' on node42: Event failed (magic=0:3;3:7:0:3604853c-f0e3-426e-b77f-66a0c6cc1756, cib=0.1131.164, source=match_graph_event:381, 0)
  May 12 14:17:58 node42 crmd[1272]:  notice: Transition aborted by status-2-fail-count-Zimbra_Service, fail-count-Zimbra_Service=5: Transient attribute change (modify cib=0.1131.165, source=abort_unless_down:319, path=/cib/status/node_state[@id='2']/transient_attributes[@id='2']/instance_attributes[@id='status-2']/nvpair[@id='status-2-fail-count-Zimbra_Service'], 0)
  May 12 14:18:05 node42 crmd[1272]:  notice: Transition 7 (Complete=9, Pending=0, Fired=0, Skipped=2, Incomplete=4, Source=/var/lib/pacemaker/pengine/pe-input-2447.bz2): Stopped
  May 12 14:18:05 node42 pengine[1271]: warning: Processing failed op Monitor for Zimbra_Service on node42: unimplemented feature (3)