Envoy collector

Envoy is an L7 proxy and communication bus designed for large modern service oriented architectures.

This module will monitor one or more Envoy servers, depending on your configuration.

Metrics

All metrics have "envoy." prefix.

Metric	Scope	Dimensions	Units
server_state	global	live, draining, pre_initializing, initializing	state
server_connections_count	global	connections	connections
server_parent_connections_count	global	connections	connections
server_memory_allocated_size	global	allocated	bytes
server_memory_heap_size	global	heap	bytes
server_memory_physical_size	global	physical	bytes
server_uptime	global	uptime	seconds
cluster_manager_cluster_count	global	active, not_active	clusters
cluster_manager_cluster_changes_rate	global	added, modified, removed	clusters/s
cluster_manager_cluster_updates_rate	global	cluster	updates/s
cluster_manager_cluster_updated_via_merge_rate	global	via_merge	updates/s
cluster_manager_update_merge_cancelled_rate	global	merge_cancelled	updates/s
cluster_manager_update_out_of_merge_window_rate	global	out_of_merge_window	updates/s
cluster_membership_endpoints_count	global	healthy, degraded, excluded	endpoints
cluster_membership_changes_rate	global	membership	changes/s
cluster_membership_updates_rate	global	success, failure, empty, no_rebuild	updates/s
cluster_upstream_cx_active_count	global	active	connections
cluster_upstream_cx_rate	global	created	connections/s
cluster_upstream_cx_http_rate	global	http1, http2, http3	connections/s
cluster_upstream_cx_destroy_rate	global	local, remote	connections/s
cluster_upstream_cx_connect_fail_rate	global	failed	connections/s
cluster_upstream_cx_connect_timeout_rate	global	timeout	connections/s
cluster_upstream_cx_bytes_rate	global	received, sent	bytes/s
cluster_upstream_cx_bytes_buffered_size	global	received, send	bytes
cluster_upstream_rq_active_count	global	active	requests
cluster_upstream_rq_rate	global	requests	requests/s
cluster_upstream_rq_failed_rate	global	cancelled, maintenance_mode, timeout, max_duration_reached, per_try_timeout, reset_local, reset_remote	requests/s
cluster_upstream_rq_pending_active_count	global	active_pending	requests
cluster_upstream_rq_pending_rate	global	pending	requests/s
cluster_upstream_rq_pending_failed_rate	global	overflow, failure_eject	requests/s
cluster_upstream_rq_retry_rate	global	request	retries/s
cluster_upstream_rq_retry_success_rate	global	success	retries/s
cluster_upstream_rq_retry_backoff_rate	global	exponential, ratelimited	retries/s
listener_manager_listeners_count	global	active, warming, draining	listeners
listener_manager_listener_changes_rate	global	added, modified, removed, stopped	listeners/s
listener_manager_listener_object_events_rate	global	create_success, create_failure, in_place_updated	objects/s
listener_admin_downstream_cx_active_count	global	active	connections
listener_admin_downstream_cx_rate	global	created	connections/s
listener_admin_downstream_cx_destroy_rate	global	destroyed	connections/s
listener_admin_downstream_cx_transport_socket_connect_timeout_rate	global	timeout	connections/s
listener_admin_downstream_cx_rejected_rate	global	overflow, overload, global_overflow	connections/s
listener_admin_downstream_listener_filter_remote_close_rate	global	closed	connections/s
listener_admin_downstream_listener_filter_error_rate	global	read	errors/s
listener_admin_downstream_pre_cx_active_count	global	active	sockets
listener_admin_downstream_pre_cx_timeout_rate	global	timeout	sockets/s
listener_downstream_cx_active_count	global	active	connections
listener_downstream_cx_rate	global	created	connections/s
listener_downstream_cx_destroy_rate	global	destroyed	connections/s
listener_downstream_cx_transport_socket_connect_timeout_rate	global	timeout	connections/s
listener_downstream_cx_rejected_rate	global	overflow, overload, global_overflow	connections/s
listener_downstream_listener_filter_remote_close_rate	global	closed	connections/s
listener_downstream_listener_filter_error_rate	global	read	errors/s
listener_downstream_pre_cx_active_count	global	active	sockets
listener_downstream_pre_cx_timeout_rate	global	timeout	sockets/s

Configuration

Edit the go.d/envoy.conf configuration file using edit-config from the Netdata config directory, which is typically at /etc/netdata.

cd /etc/netdata # Replace this path with your Netdata config directory
sudo ./edit-config go.d/envoy.conf

Needs only url to server's /stats/prometheus endpoint. Here is an example for 2 servers:

jobs:
  - name: local
    url: http://127.0.0.1:9901/stats/prometheus

  - name: remote
    url: http://203.0.113.10:9901/stats/prometheus

For all available options please see module configuration file.

Troubleshooting

To troubleshoot issues with the envoy collector, run the go.d.plugin with the debug option enabled. The output should give you clues as to why the collector isn't working.

• Navigate to the plugins.d directory, usually at /usr/libexec/netdata/plugins.d/. If that's not the case on your system, open netdata.conf and look for the plugins setting under [directories].

  cd /usr/libexec/netdata/plugins.d/

• Switch to the netdata user.

  sudo -u netdata -s

• Run the go.d.plugin to debug the collector:

  ./go.d.plugin -d -m envoy