1. For intra-node traffic, both client session and server sessions does not have logged bytes/pkts in the logged session.
2018-01-12 Fri 12:12:29:596.542 IST nodec12 [Thread 140131204904704, Pid 24238]: [SYS_INFO]: SessionEndpointObject: session_data= [ [ [ vmi = default-domain:ctest-SecurityLogging-70593636:a99b0837-942d-4c91-872d-aa4598736749 vn = default-domain:ctest-SecurityLogging-70593636:ctest-vn-71975813 security_policy_rule = 00000000-0000-0000-0000-000000000001 remote_vn = default-domain:ctest-SecurityLogging-70593636:ctest-vn-40387821 is_client_session = 1 is_si = 0 vrouter_ip = 10.204.216.69 sess_agg_info= [ [ [ local_ip = 155.237.7.3 service_port = 0 protocol = 1 ] [ logged_forward_bytes = 0 logged_forward_pkts = 0 logged_reverse_bytes = 0 logged_reverse_pkts = 0 sessionMap= [ [ [ ip = 125.176.174.3 port = 8459 ] [ forward_flow_info= [ flow_uuid = 6904adbd-8951-4981-b943-9d91f853ddf2 setup_time = 1515739277734926 action = pass sg_rule_uuid = 0f351920-24c3-4343-b32a-67cccac6b325 nw_ace_uuid = 4e74bd94-4b5a-4177-8d72-8395d0cd0e39 ] reverse_flow_info= [ flow_uuid = c4be258d-e238-4704-b28d-4f2afb920243 setup_time = 1515739277734926 action = pass sg_rule_uuid = f775f3e4-13a1-4ee1-8bb8-469e594f761c nw_ace_uuid = 4e74bd94-4b5a-4177-8d72-8395d0cd0e39 ] vm = be78008c-163c-4491-be05-dcc42c44c4f6 other_vrouter_ip = 10.204.216.69 underlay_proto = 0 ], ] ] ], ] ] ], ] ]
2018-01-12 Fri 12:13:05:600.461 IST nodec12 [Thread 140131230095104, Pid 24238]: [SYS_INFO]: SessionEndpointObject: session_data= [ [ [ vmi = default-domain:ctest-SecurityLogging-70593636:5d2dcb20-eca8-4ba2-a39a-d02189d7d4bd vn = default-domain:ctest-SecurityLogging-70593636:ctest-vn-40387821 security_policy_rule = 00000000-0000-0000-0000-000000000001 remote_vn = default-domain:ctest-SecurityLogging-70593636:ctest-vn-71975813 is_client_session = 0 is_si = 0 vrouter_ip = 10.204.216.69 sess_agg_info= [ [ [ local_ip = 125.176.174.3 service_port = 8459 protocol = 1 ] [ logged_forward_bytes = 0 logged_forward_pkts = 0 logged_reverse_bytes = 0 logged_reverse_pkts = 0 sessionMap= [ [ [ ip = 155.237.7.3 port = 0 ] [ forward_flow_info= [ flow_uuid = c4be258d-e238-4704-b28d-4f2afb920243 setup_time = 1515739277734588 action = pass sg_rule_uuid = f775f3e4-13a1-4ee1-8bb8-469e594f761c nw_ace_uuid = 4e74bd94-4b5a-4177-8d72-8395d0cd0e39 ] reverse_flow_info= [ flow_uuid = 6904adbd-8951-4981-b943-9d91f853ddf2 setup_time = 1515739277734588 action = pass sg_rule_uuid = 0f351920-24c3-4343-b32a-67cccac6b325 nw_ace_uuid = 4e74bd94-4b5a-4177-8d72-8395d0cd0e39 ] vm = 520dd3e8-673f-4dc3-a864-e30c801c5289 other_vrouter_ip = 10.204.216.69 underlay_proto = 0 ], ] ] ], ] ] ], ] ]
2. For inter-node traffic, sometime client session is logged correctly with all logged bytes/pkts else mostly both client/server session does not have logged bytes/pkts info.
session logged with correct logged bytes/pkts:
2018-01-12 Fri 11:39:43:397.706 IST nodec12 [Thread 140131225896704, Pid 24238]: [SYS_INFO]: SessionEndpointObject: session_data= [ [ [ vmi = default-domain:ctest-SecurityLogging-70593636:a99b0837-942d-4c91-872d-aa4598736749 vn = default-domain:ctest-SecurityLogging-70593636:ctest-vn-71975813 security_policy_rule = 00000000-0000-0000-0000-000000000001 remote_vn = default-domain:ctest-SecurityLogging-70593636:ctest-vn-40387821 is_client_session = 1 is_si = 0 vrouter_ip = 10.204.216.69 sess_agg_info= [ [ [ local_ip = 155.237.7.3 service_port = 0 protocol = 1 ] [ logged_forward_bytes = 98 logged_forward_pkts = 1 logged_reverse_bytes = 84 logged_reverse_pkts = 1 sessionMap= [ [ [ ip = 125.176.174.4 port = 4274 ] [ forward_flow_info= [ logged_bytes = 98 logged_pkts = 1 flow_uuid = 34dc5bb7-bf7b-4a93-ac73-5745de35582a tcp_flags = 0 setup_time = 1515737382662454 action = pass sg_rule_uuid = 0f351920-24c3-4343-b32a-67cccac6b325 nw_ace_uuid = 4e74bd94-4b5a-4177-8d72-8395d0cd0e39 underlay_source_port = 61858 ] reverse_flow_info= [ logged_bytes = 84 logged_pkts = 1 flow_uuid = 82479935-62db-40f4-b080-4352b27decbb tcp_flags = 0 setup_time = 1515737382662454 action = pass sg_rule_uuid = 0f351920-24c3-4343-b32a-67cccac6b325 nw_ace_uuid = 4e74bd94-4b5a-4177-8d72-8395d0cd0e39 underlay_source_port = 60244 ] vm = be78008c-163c-4491-be05-dcc42c44c4f6 other_vrouter_ip = 10.204.217.102 underlay_proto = 2 ], ] ] ], ] ] ], ] ]
with SLO rate 1 this seems to be working fine.
closing the bug for now.