This article discusses the issue where counters with zero values are not displayed in UDP streaming telemetry data, even though the configuration for no-zero-suppression is applied.
When using UDP streaming for telemetry data, counters with zero values are not shown in the output. This occurs despite having the no-zero-suppression configuration enabled, which should ensure that counters with zero values are included in the telemetry data.
> show databases name: databases name ---- _internal test > use test Using database test > show measurements name: measurements name ---- ifl > select * from "ifl" where jkey =~ /ae1.1/and componentId =1 name: ifl time componentId jkey jvalue sensorName sequenceNumber subComponentId systemId timestamp versionMajor versionMinor ---- ----------- ---- ------ ---------- -------------- -------------- -------- --------- ------------ ------------ 2024-05-08T08:51:44Z 1 /interface_info[if_name='ae1.1']/init_time 1715158198 test-sensor-1_1_1:/junos/system/linecard/interface/logical/usage/:/junos/system/linecard/interface/logical/usage/:evo-aftmand-bt 7 0 jtac-ptx10004-scapa-r2001-re0:10.220.1.2 1715158304741 1 0 2024-05-08T08:51:44Z 1 /interface_info[if_name='ae1.1'][snmp_if_index='523']/op_state/operational_status UP test-sensor-1_1_1:/junos/system/linecard/interface/logical/usage/:/junos/system/linecard/interface/logical/usage/:evo-aftmand-bt 7 0 jtac-ptx10004-scapa-r2001-re0:10.220.1.2 1715158304741 1 0
The problem is caused by a bug identified in PR 1666484. The configuration to disable zero suppression was not properly handled by the UDP walker in the telemetry library. To resolve this issue, similar changes to those applied to gRPC/gNMI have been made to the UDP walker to correctly handle the no-zero-suppression configuration knob.After applying the fix, rerun the initial query:
> select * from "ifl" where jkey =~ /ae1.1/and componentId =1 name: ifl time componentId jkey jvalue sensorName sequenceNumber subComponentId systemId timestamp versionMajor versionMinor ---- ----------- ---- ------ ---------- -------------- -------------- -------- --------- ------------ ------------ 2024-05-08T09:01:08Z 1 /interface_info[if_name='ae1.1']/init_time 1715158198 test-sensor-1_1_1:/junos/system/linecard/interface/logical/usage/:/junos/system/linecard/interface/logical/usage/:evo-aftmand-bt 1 0 device:10.220.1.2 1715158868975 1 0 2024-05-08T09:01:08Z 1 /interface_info[if_name='ae1.1'][snmp_if_index='523' and parent_ae_name='']/ingress_stats/op_state/operational_status UP test-sensor-1_1_1:/junos/system/linecard/interface/logical/usage/:/junos/system/linecard/interface/logical/usage/:evo-aftmand-bt 1 0 device:10.220.1.2 1715158868975 1 0 2024-05-08T09:01:08Z 1 /interface_info[if_name='ae1.1'][snmp_if_index='523' and parent_ae_name='']/ingress_stats/administractive_status test-sensor-1_1_1:/junos/system/linecard/interface/logical/usage/:/junos/system/linecard/interface/logical/usage/:evo-aftmand-bt 1 0 device:10.220.1.2 1715158868975 1 0 2024-05-08T09:01:08Z 1 /interface_info[if_name='ae1.1'][snmp_if_index='523' and parent_ae_name='']/ingress_stats/egress_stats/if_mcast_packets 0 test-sensor-1_1_1:/junos/system/linecard/interface/logical/usage/:/junos/system/linecard/interface/logical/usage/:evo-aftmand-bt 1 0 device:10.220.1.2 1715158868975 1 0 2024-05-08T09:01:08Z 1 /interface_info[if_name='ae1.1'][snmp_if_index='523' and parent_ae_name='']/ingress_stats/high_speed 0 test-sensor-1_1_1:/junos/system/linecard/interface/logical/usage/:/junos/system/linecard/interface/logical/usage/:evo-aftmand-bt 1 0 device:10.220.1.2 1715158868975 1 0 2024-05-08T09:01:08Z 1 /interface_info[if_name='ae1.1'][snmp_if_index='523' and parent_ae_name='']/ingress_stats/if_mcast_packets 0 test-sensor-1_1_1:/junos/system/linecard/interface/logical/usage/:/junos/system/linecard/interface/logical/usage/:evo-aftmand-bt 1 0 device:10.220.1.2 1715158868975 1 0 2024-05-08T09:01:08Z 1 /interface_info[if_name='ae1.1'][snmp_if_index='523' and parent_ae_name='']/ingress_stats/egress_stats/if_octets 0 test-sensor-1_1_1:/junos/system/linecard/interface/logical/usage/:/junos/system/linecard/interface/logical/usage/:evo-aftmand-bt 1 0 device:10.220.1.2 1715158868975 1 0 2024-05-08T09:01:08Z 1 /interface_info[if_name='ae1.1'][snmp_if_index='523' and parent_ae_name='']/ingress_stats/if_octets 0 test-sensor-1_1_1:/junos/system/linecard/interface/logical/usage/:/junos/system/linecard/interface/logical/usage/:evo-aftmand-bt 1 0 device:10.220.1.2 1715158868975 1 0 2024-05-08T09:01:08Z 1 /interface_info[if_name='ae1.1'][snmp_if_index='523' and parent_ae_name='']/ingress_stats/if_packets 0 test-sensor-1_1_1:/junos/system/linecard/interface/logical/usage/:/junos/system/linecard/interface/logical/usage/:evo-aftmand-bt 1 0 device:10.220.1.2 1715158868975 1 0 2024-05-08T09:01:08Z 1 /interface_info[if_name='ae1.1'][snmp_if_index='523' and parent_ae_name='']/ingress_stats/description test-sensor-1_1_1:/junos/system/linecard/interface/logical/usage/:/junos/system/linecard/interface/logical/usage/:evo-aftmand-bt 1 0 device:10.220.1.2 1715158868975 1 0 2024-05-08T09:01:08Z 1 /interface_info[if_name='ae1.1'][snmp_if_index='523' and parent_ae_name='']/ingress_stats/egress_stats/if_packets 0 test-sensor-1_1_1:/junos/system/linecard/interface/logical/usage/:/junos/system/linecard/interface/logical/usage/:evo-aftmand-bt 1 0 device:10.220.1.2 1715158868975 1 0 2024-05-08T09:01:08Z 1 /interface_info[if_name='ae1.1'][snmp_if_index='523' and parent_ae_name='']/ingress_stats/if_ucast_packets 0 test-sensor-1_1_1:/junos/system/linecard/interface/logical/usage/:/junos/system/linecard/interface/logical/usage/:evo-aftmand-bt 1 0 device:10.220.1.2 1715158868975 1 0 2024-05-08T09:01:08Z 1 /interface_info[if_name='ae1.1'][snmp_if_index='523' and parent_ae_name='']/ingress_stats/last_change 0 test-sensor-1_1_1:/junos/system/linecard/interface/logical/usage/:/junos/system/linecard/interface/logical/usage/:evo-aftmand-bt 1 0 device:10.220.1.2 1715158868975 1 0 2024-05-08T09:01:08Z 1 /interface_info[if_name='ae1.1'][snmp_if_index='523' and parent_ae_name='']/ingress_stats/egress_stats/if_ucast_packets 0 test-sensor-1_1_1:/junos/system/linecard/interface/logical/usage/:/junos/system/linecard/interface/logical/usage/:evo-aftmand-bt 1 0 device:10.220.1.2 1715158868975 1 0 2024-05-08T09:01:23Z 1 /interface_info[if_name='ae1.1'][snmp_if_index='523' and parent_ae_name='']/ingress_stats/last_change 0 test-sensor-1_1_1:/junos/system/linecard/interface/logical/usage/:/junos/system/linecard/interface/logical/usage/:evo-aftmand-bt 2 0 device:10.220.1.2 1715158883975 1 0