Prometheus statistics

Felix can be configured to report a number of metrics through Prometheus. See the configuration reference for how to enable metrics reporting.

Metric reference

Felix specific

Felix exports a number of Prometheus metrics. The current set is as follows. Since some metrics are tied to particular implementation choices inside Felix we can't make any hard guarantees that metrics will persist across releases. However, we aim not to make any spurious changes to existing metrics.

Name	Description
felix_active_local_endpoints	Number of active endpoints on this host.
felix_active_local_policies	Number of active policies on this host.
felix_active_local_selectors	Number of active selectors on this host.
felix_active_local_tags	Number of active tags on this host.
felix_bpf_conntrack_cleaned	Number of entries cleaned during a conntrack table sweep.
felix_bpf_conntrack_cleaned_total	Total number of entries cleaned during conntrack table sweeps, incremented for each clean individualy.
felix_bpf_conntrack_expired	Number of entries cleaned during a conntrack table sweep due to expiration.
felix_bpf_conntrack_expired_total	Total number of entries cleaned during conntrack table sweep due to expiration - by reason.
felix_bpf_conntrack_inforeader_blocks	Conntrack InfoReader would-blocks.
felix_bpf_conntrack_stale_nat	Number of entries cleaned during a conntrack table sweep due to stale NAT.
felix_bpf_conntrack_stale_nat_total	Total number of entries cleaned during conntrack table sweeps due to stale NAT.
felix_bpf_conntrack_sweeps	Number of contrack table sweeps made so far.
felix_bpf_conntrack_used	Number of used entries visited during a conntrack table sweep.
felix_bpf_conntrack_sweep_duration	Conntrack sweep execution time (ns).
felix_bpf_num_ip_sets	Number of BPF IP sets managed in the dataplane.
felix_calc_graph_output_events	Number of events emitted by the calculation graph.
felix_calc_graph_update_time_seconds	Seconds to update calculation graph for each datastore OnUpdate call.
felix_calc_graph_updates_processed	Number of datastore updates processed by the calculation graph.
felix_cluster_num_host_endpoints	Total number of host endpoints cluster-wide.
felix_cluster_num_hosts	Total number of Calico Cloud hosts in the cluster.
felix_cluster_num_policies	Total number of policies in the cluster.
felix_cluster_num_profiles	Total number of profiles in the cluster.
felix_cluster_num_tiers	Total number of Calico Cloud tiers in the cluster.
felix_cluster_num_workload_endpoints	Total number of workload endpoints cluster-wide.
felix_egress_gateway_remote_polls{status="total"}	Total number of remote egress gateway pods that Felix is polling for health/connectivity. Only egress gateways with a named "health" port will be polled.
felix_egress_gateway_remote_polls{status="up"}	Total number of remote egress gateway pods that have successful probes.
felix_egress_gateway_remote_polls{status="probe-failed"}	Total number of remote egress gateway pods that have failed probes.
felix_exec_time_micros	Summary of time taken to fork/exec child processes
felix_int_dataplane_addr_msg_batch_size	Number of interface address messages processed in each batch. Higher values indicate we're doing more batching to try to keep up.
felix_int_dataplane_apply_time_seconds	Time in seconds that it took to apply a dataplane update.
felix_int_dataplane_failures	Number of times dataplane updates failed and will be retried.
felix_int_dataplane_iface_msg_batch_size	Number of interface state messages processed in each batch. Higher values indicate we're doing more batching to try to keep up.
felix_int_dataplane_messages	Number dataplane messages by type.
felix_int_dataplane_msg_batch_size	Number of messages processed in each batch. Higher values indicate we're doing more batching to try to keep up.
felix_ipsec_bindings_total	Total number of ipsec bindings.
felix_ipsec_errors	Number of ipsec command failures.
felix_ipset_calls	Number of ipset commands executed.
felix_ipset_errors	Number of ipset command failures.
felix_ipset_lines_executed	Number of ipset operations executed.
felix_ipsets_calico	Number of active Calico Cloud IP sets.
felix_ipsets_total	Total number of active IP sets.
felix_iptables_chains	Number of active iptables chains.
felix_iptables_lines_executed	Number of iptables rule updates executed.
felix_iptables_lock_acquire_secs	Time taken to acquire the iptables lock.
felix_iptables_lock_retries	Number of times the iptables lock was already held and felix had to retry to acquire it.
felix_iptables_restore_calls	Number of iptables-restore calls.
felix_iptables_restore_errors	Number of iptables-restore errors.
felix_iptables_rules	Number of active iptables rules.
felix_iptables_save_calls	Number of iptables-save calls.
felix_iptables_save_errors	Number of iptables-save errors.
felix_log_errors	Number of errors encountered while logging.
felix_logs_dropped	Number of logs dropped because the output stream was blocked.
felix_reporter_log_errors	Number of errors encountered while logging in the Syslog.
felix_reporter_logs_dropped	Number of logs dropped because the output was blocked in the the Syslog reporter.
felix_resync_state	Current datastore state.
felix_resyncs_started	Number of times Felix has started resyncing with the datastore.
felix_route_table_list_seconds	Time taken to list all the interfaces during a resync.
felix_route_table_per_iface_sync_seconds	Time taken to sync each interface

Prometheus metrics are self-documenting, with metrics turned on, curl can be used to list the metrics along with their help text and type information.

curl -s http://localhost:9091/metrics | head

Example response:

# HELP felix_active_local_endpoints Number of active endpoints on this host.
# TYPE felix_active_local_endpoints gauge
felix_active_local_endpoints 91
# HELP felix_active_local_policies Number of active policies on this host.
# TYPE felix_active_local_policies gauge
felix_active_local_policies 0
# HELP felix_active_local_selectors Number of active selectors on this host.
# TYPE felix_active_local_selectors gauge
felix_active_local_selectors 82
...

CPU / memory metrics

Felix also exports the default set of metrics that Prometheus makes available. Currently, those include:

Name	Description
go_gc_duration_seconds	A summary of the GC invocation durations.
go_goroutines	Number of goroutines that currently exist.
go_info	Go version.
go_memstats_alloc_bytes	Number of bytes allocated and still in use.
go_memstats_alloc_bytes_total	Total number of bytes allocated, even if freed.
go_memstats_buck_hash_sys_bytes	Number of bytes used by the profiling bucket hash table.
go_memstats_frees_total	Total number of frees.
go_memstats_gc_cpu_fraction	The fraction of this program’s available CPU time used by the GC since the program started.
go_memstats_gc_sys_bytes	Number of bytes used for garbage collection system metadata.
go_memstats_heap_alloc_bytes	Number of heap bytes allocated and still in use.
go_memstats_heap_idle_bytes	Number of heap bytes waiting to be used.
go_memstats_heap_inuse_bytes	Number of heap bytes that are in use.
go_memstats_heap_objects	Number of allocated objects.
go_memstats_heap_released_bytes	Number of heap bytes released to OS.
go_memstats_heap_sys_bytes	Number of heap bytes obtained from system.
go_memstats_last_gc_time_seconds	Number of seconds since 1970 of last garbage collection.
go_memstats_lookups_total	Total number of pointer lookups.
go_memstats_mallocs_total	Total number of mallocs.
go_memstats_mcache_inuse_bytes	Number of bytes in use by mcache structures.
go_memstats_mcache_sys_bytes	Number of bytes used for mcache structures obtained from system.
go_memstats_mspan_inuse_bytes	Number of bytes in use by mspan structures.
go_memstats_mspan_sys_bytes	Number of bytes used for mspan structures obtained from system.
go_memstats_next_gc_bytes	Number of heap bytes when next garbage collection will take place.
go_memstats_other_sys_bytes	Number of bytes used for other system allocations.
go_memstats_stack_inuse_bytes	Number of bytes in use by the stack allocator.
go_memstats_stack_sys_bytes	Number of bytes obtained from system for stack allocator.
go_memstats_sys_bytes	Number of bytes obtained by system. Sum of all system allocations.
go_threads	Number of OS threads created.
process_cpu_seconds_total	Total user and system CPU time spent in seconds.
process_max_fds	Maximum number of open file descriptors.
process_open_fds	Number of open file descriptors.
process_resident_memory_bytes	Resident memory size in bytes.
process_start_time_seconds	Start time of the process since unix epoch in seconds.
process_virtual_memory_bytes	Virtual memory size in bytes.
process_virtual_memory_max_bytes	Maximum amount of virtual memory available in bytes.

Wireguard Metrics

Felix also exports wireguard device stats if found/detected. Can be disabled via Felix configuration.

Name	Description
wireguard_meta	Gauge. Device / interface information for a felix/calico node, values are in this metric's labels
wireguard_bytes_rcvd	Counter. Current bytes received from a peer identified by a peer public key and endpoint
wireguard_bytes_sent	Counter. Current bytes sent to a peer identified by a peer public key and endpoint
wireguard_latest_handshake_seconds	Gauge. Last handshake with a peer, unix timestamp in seconds.