Bulk Statistics Support

The following are examples of the GTPC path failure:

nodemgr_gtpc_pathfail_reasons{app_name="smf",cluster="cn",
data_center="cn",instance_id="1",pathfail_reason="pathfail_no_echo_rcv",
service_name="nodemgr"} 2
nodemgr_gtpc_pathfail_reasons{app_name="smf",cluster="cn",data_center="cn",
instance_id="0",pathfail_reason="pathfail_echo_res_rc_change",
service_name="nodemgr"} 1