Load balancing metrics

Cloud Monitoring collects measurements to help you understand how your applications and system services are performing. A collection of these measurements is generically called a metric. The applications and system services being monitored are called monitored resources.

To use these metrics in charting or alerting, your Google Cloud project or AWS account must be associated with a Workspace. For more information, see Workspaces.

  • For a general explanation of the entries in the tables, see Metric types.

  • For information about the units used in the metric lists, see the unit field in the MetricDescriptor reference.

  • For information about statements of the form “Sampled every x seconds” and “After sampling, data is not visible for up to y seconds”, see Additional information: metadata.

  • For a set of complete, current lists of supported metric types, see Metrics list.

  • For pricing information, see Monitoring pricing.

The "metric type" strings in this table must be prefixed with loadbalancing.googleapis.com/. That prefix has been omitted from the entries in the table.

Metric type Launch stage
Display name
Kind, Type, Unit
Monitored resources
Description
Labels
https/backend_latencies GA
Backend latency
DELTADISTRIBUTIONms
https_lb_rule
A distribution of the latency calculated from when the request was sent by the proxy to the backend until the proxy received from the backend the last byte of response. Sampled every 60 seconds. After sampling, data is not visible for up to 210 seconds.
protocol: Protocol used by the client: 'HTTP/1.0', 'HTTP/1.1', 'HTTP/2.0', 'SPDY' or 'UNKNOWN'.
response_code: (INT64) HTTP response code.
response_code_class: (INT64) HTTP response code class: 200, 300, 400, 500 or 0 for none.
proxy_continent: Continent of the HTTP proxy which handled the hit: 'America', 'Europe' or 'Asia'.
cache_result: Cache result for serving HTTP request by proxy: 'HIT', 'MISS', 'DISABLED' or 'UNKNOWN'.
client_country: Country of the client that issued the HTTP request (e.g. 'United States', 'Germany').
https/backend_request_bytes_count GA
Backend Request Bytes
DELTAINT64By
https_lb_rule
The number of bytes sent as requests from HTTP/S load balancer to backends. Sampled every 60 seconds. After sampling, data is not visible for up to 210 seconds.
response_code: (INT64) HTTP backend response code.
response_code_class: (INT64) HTTP backend response code class: 200, 300, 400, 500 or 0 for none.
proxy_continent: Continent of the HTTP proxy which handled the request: 'America', 'Europe' or 'Asia'.
cache_result: Cache result for serving the HTTP request by backends (cache hits are abstracted as backend requests): 'HIT', 'MISS', 'DISABLED' or 'UNKNOWN'.
https/backend_request_count GA
Backend Request Count
DELTAINT641
https_lb_rule
The number of requests served by backends of HTTP/S load balancer. Sampled every 60 seconds. After sampling, data is not visible for up to 210 seconds.
response_code: (INT64) HTTP backend response code.
response_code_class: (INT64) HTTP backend response code class: 200, 300, 400, 500 or 0 for none.
proxy_continent: Continent of the HTTP proxy which handled the request: 'America', 'Europe' or 'Asia'.
cache_result: Cache result for serving the HTTP request by backends (cache hits are abstracted as backend requests): 'HIT', 'MISS', 'DISABLED' or 'UNKNOWN'.
https/backend_response_bytes_count GA
Backend Response Bytes
DELTAINT64By
https_lb_rule
The number of bytes sent as responses from backends (or cache) to HTTP/S load balancer. Sampled every 60 seconds. After sampling, data is not visible for up to 210 seconds.
response_code: (INT64) HTTP backend response code.
response_code_class: (INT64) HTTP backend response code class: 200, 300, 400, 500 or 0 for none.
proxy_continent: Continent of the HTTP proxy which handled the request: 'America', 'Europe' or 'Asia'.
cache_result: Cache result for serving the HTTP request by backends (cache hits are abstracted as backend requests): 'HIT', 'MISS', 'DISABLED' or 'UNKNOWN'.
https/frontend_tcp_rtt GA
Frontend RTT
DELTADISTRIBUTIONms
https_lb_rule
A distribution of the RTT measured for each connection between client and proxy. Sampled every 60 seconds. After sampling, data is not visible for up to 210 seconds.
proxy_continent: Continent of the HTTP proxy which handled the hit: 'America', 'Europe' or 'Asia'.
client_country: Country of the client that issued the HTTP request (e.g. 'United States', 'Germany').
https/internal/backend_latencies GA
Backend latencies
DELTADISTRIBUTIONms
internal_http_lb_rule
A distribution of the latency calculated from when the request was sent by the proxy to the backend until the proxy received from the backend the last byte of response. Sampled every 60 seconds. After sampling, data is not visible for up to 90 seconds.
protocol: Protocol used by the client: 'HTTP/1.0', 'HTTP/1.1', 'HTTP/2.0', 'SPDY' or 'UNKNOWN'.
response_code: (INT64) HTTP response code.
response_code_class: (INT64) HTTP response code class: 200, 300, 400, 500 or 0 for none.
cache_result: Cache result for serving HTTP request by proxy: 'HIT', 'MISS', 'DISABLED' or 'UNKNOWN'.
https/internal/request_bytes_count GA
Request bytes
DELTAINT64By
internal_http_lb_rule
The number of bytes sent as requests from clients to HTTP/S load balancer. Sampled every 60 seconds. After sampling, data is not visible for up to 90 seconds.
protocol: Protocol used by the client: 'HTTP/1.0', 'HTTP/1.1', 'HTTP/2.0', 'SPDY' or 'UNKNOWN'.
response_code: (INT64) HTTP response code.
response_code_class: (INT64) HTTP response code class: 200, 300, 400, 500 or 0 for none.
cache_result: Cache result for serving HTTP request by proxy: 'HIT', 'MISS', 'DISABLED' or 'UNKNOWN'.
https/internal/request_count GA
Request count
DELTAINT641
internal_http_lb_rule
The number of requests served by HTTP/S load balancer. Sampled every 60 seconds. After sampling, data is not visible for up to 90 seconds.
protocol: Protocol used by the client: 'HTTP/1.0', 'HTTP/1.1', 'HTTP/2.0', 'QUIC/HTTP/2.0' or 'UNKNOWN'.
response_code: (INT64) HTTP response code.
response_code_class: (INT64) HTTP response code class: 200, 300, 400, 500 or 0 for none.
cache_result: Cache result for serving HTTP request by proxy: 'HIT', 'MISS', 'DISABLED' or 'UNKNOWN'.
https/internal/response_bytes_count GA
Response bytes
DELTAINT64By
internal_http_lb_rule
The number of bytes sent as responses from HTTP/S load balancer to clients. Sampled every 60 seconds. After sampling, data is not visible for up to 90 seconds.
protocol: Protocol used by the client: 'HTTP/1.0', 'HTTP/1.1', 'HTTP/2.0', 'SPDY' or 'UNKNOWN'.
response_code: (INT64) HTTP response code.
response_code_class: (INT64) HTTP response code class: 200, 300, 400, 500 or 0 for none.
cache_result: Cache result for serving HTTP request by proxy: 'HIT', 'MISS', 'DISABLED' or 'UNKNOWN'.
https/internal/total_latencies GA
Total latencies
DELTADISTRIBUTIONms
internal_http_lb_rule
A distribution of the latency calculated from when the request was received by the proxy until the proxy got ACK from client on last response byte. Sampled every 60 seconds. After sampling, data is not visible for up to 90 seconds.
protocol: Protocol used by the client: 'HTTP/1.0', 'HTTP/1.1', 'HTTP/2.0', 'SPDY' or 'UNKNOWN'.
response_code: (INT64) HTTP response code.
response_code_class: (INT64) HTTP response code class: 200, 300, 400, 500 or 0 for none.
cache_result: Cache result for serving HTTP request by proxy: 'HIT', 'MISS', 'DISABLED' or 'UNKNOWN'.
https/request_bytes_count GA
Request bytes
DELTAINT64By
https_lb_rule
The number of bytes sent as requests from clients to HTTP/S load balancer. Sampled every 60 seconds. After sampling, data is not visible for up to 210 seconds.
protocol: Protocol used by the client: 'HTTP/1.0', 'HTTP/1.1', 'HTTP/2.0', 'SPDY' or 'UNKNOWN'.
response_code: (INT64) HTTP response code.
response_code_class: (INT64) HTTP response code class: 200, 300, 400, 500 or 0 for none.
proxy_continent: Continent of the HTTP proxy which handled the hit: 'America', 'Europe' or 'Asia'.
cache_result: Cache result for serving HTTP request by proxy: 'HIT', 'MISS', 'DISABLED', 'PARTIAL_HIT' (for a request served partially from cache and partially from backend) or 'UNKNOWN'.
client_country: Country of the client that issued the HTTP request (e.g. 'United States', 'Germany').
https/request_count GA
Request count
DELTAINT641
https_lb_rule
The number of requests served by HTTP/S load balancer. Sampled every 60 seconds. After sampling, data is not visible for up to 210 seconds.
protocol: Protocol used by the client: 'HTTP/1.0', 'HTTP/1.1', 'HTTP/2.0', 'QUIC/HTTP/2.0' or 'UNKNOWN'.
response_code: (INT64) HTTP response code.
response_code_class: (INT64) HTTP response code class: 200, 300, 400, 500 or 0 for none.
proxy_continent: Continent of the HTTP proxy which handled the hit: 'America', 'Europe' or 'Asia'.
cache_result: Cache result for serving HTTP request by proxy: 'HIT', 'MISS', 'DISABLED', 'PARTIAL_HIT' (for a request served partially from cache and partially from backend) or 'UNKNOWN'.
client_country: Country of the client that issued the HTTP request (e.g. 'United States', 'Germany').
https/response_bytes_count GA
Response bytes
DELTAINT64By
https_lb_rule
The number of bytes sent as responses from HTTP/S load balancer to clients. Sampled every 60 seconds. After sampling, data is not visible for up to 210 seconds.
protocol: Protocol used by the client: 'HTTP/1.0', 'HTTP/1.1', 'HTTP/2.0', 'SPDY' or 'UNKNOWN'.
response_code: (INT64) HTTP response code.
response_code_class: (INT64) HTTP response code class: 200, 300, 400, 500 or 0 for none.
proxy_continent: Continent of the HTTP proxy which handled the hit: 'America', 'Europe' or 'Asia'.
cache_result: Cache result for serving HTTP request by proxy: 'HIT', 'MISS', 'DISABLED', 'PARTIAL_HIT' (for a request served partially from cache and partially from backend) or 'UNKNOWN'.
client_country: Country of the client that issued the HTTP request (e.g. 'United States', 'Germany').
https/total_latencies GA
Total latency
DELTADISTRIBUTIONms
https_lb_rule
A distribution of the latency calculated from when the request was received by the proxy until the proxy got ACK from client on last response byte. Sampled every 60 seconds. After sampling, data is not visible for up to 210 seconds.
protocol: Protocol used by the client: 'HTTP/1.0', 'HTTP/1.1', 'HTTP/2.0', 'SPDY' or 'UNKNOWN'.
response_code: (INT64) HTTP response code.
response_code_class: (INT64) HTTP response code class: 200, 300, 400, 500 or 0 for none.
proxy_continent: Continent of the HTTP proxy which handled the hit: 'America', 'Europe' or 'Asia'.
cache_result: Cache result for serving HTTP request by proxy: 'HIT', 'MISS', 'DISABLED', 'PARTIAL_HIT' (for a request served partially from cache and partially from backend) or 'UNKNOWN'.
client_country: Country of the client that issued the HTTP request (e.g. 'United States', 'Germany').
l3/external/egress_bytes_count GA
Egress bytes
DELTAINT64By
tcp_lb_rule, udp_lb_rule
The number of bytes sent from NetLB backend to client of the flow. For TCP flows it's counting bytes on application stream only. Sampled every 60 seconds. After sampling, data is not visible for up to 150 seconds.
client_continent: Continent of the client which initiated flow to Network LB.
client_country: Country of the client which initiated flow to Network LB.
l3/external/egress_packets_count GA
Egress packets
DELTAINT641
tcp_lb_rule, udp_lb_rule
The number of packets sent from NetLB backend to client of the flow. Sampled every 60 seconds. After sampling, data is not visible for up to 150 seconds.
client_continent: Continent of the client which initiated flow to Network LB.
client_country: Country of the client which initiated flow to Network LB.
l3/external/ingress_bytes_count GA
Ingress bytes
DELTAINT64By
tcp_lb_rule, udp_lb_rule
The number of bytes sent from client to NetLB backend. For TCP flows it's counting bytes on application stream only. Sampled every 60 seconds. After sampling, data is not visible for up to 150 seconds.
client_continent: Continent of the client which initiated flow to Network LB.
client_country: Country of the client which initiated flow to Network LB.
l3/external/ingress_packets_count GA
Ingress packets
DELTAINT641
tcp_lb_rule, udp_lb_rule
The number of packets sent from client to NetLB backend. Sampled every 60 seconds. After sampling, data is not visible for up to 150 seconds.
client_continent: Continent of the client which initiated flow to Network LB.
client_country: Country of the client which initiated flow to Network LB.
l3/external/rtt_latencies GA
RTT latencies
DELTADISTRIBUTIONms
tcp_lb_rule
A distribution of RTT measured over TCP connections for NetLB flows. Sampled every 60 seconds. After sampling, data is not visible for up to 150 seconds.
client_continent: Continent of the client which initiated flow to Network LB.
client_country: Country of the client which initiated flow to Network LB.
l3/internal/egress_bytes_count GA
Egress bytes
DELTAINT64By
internal_tcp_lb_rule, internal_udp_lb_rule
The number of bytes sent from ILB backend to client (for TCP flows it's counting bytes on application stream only). Sampled every 60 seconds. After sampling, data is not visible for up to 150 seconds.
client_network: Network of the client instance in ILB flow.
client_subnetwork: Subnetwork of the client instance in ILB flow.
client_zone: Zone of the client instance in ILB flow.
l3/internal/egress_packets_count GA
Egress packets
DELTAINT641
internal_tcp_lb_rule, internal_udp_lb_rule
The number of packets sent from ILB backend to client of the flow. Sampled every 60 seconds. After sampling, data is not visible for up to 150 seconds.
client_network: Network of the client instance in ILB flow.
client_subnetwork: Subnetwork of the client instance in ILB flow.
client_zone: Zone of the client instance in ILB flow.
l3/internal/ingress_bytes_count GA
Ingress bytes
DELTAINT64By
internal_tcp_lb_rule, internal_udp_lb_rule
The number of bytes sent from client to ILB backend (for TCP flows it's counting bytes on application stream only). Sampled every 60 seconds. After sampling, data is not visible for up to 150 seconds.
client_network: Network of the client instance in ILB flow.
client_subnetwork: Subnetwork of the client instance in ILB flow.
client_zone: Zone of the client instance in ILB flow.
l3/internal/ingress_packets_count GA
Ingress packets
DELTAINT641
internal_tcp_lb_rule, internal_udp_lb_rule
The number of packets sent from client to ILB backend. Sampled every 60 seconds. After sampling, data is not visible for up to 150 seconds.
client_network: Network of the client instance in ILB flow.
client_subnetwork: Subnetwork of the client instance in ILB flow.
client_zone: Zone of the client instance in ILB flow.
l3/internal/rtt_latencies GA
RTT latencies
DELTADISTRIBUTIONms
internal_tcp_lb_rule
A distribution of RTT measured over TCP connections for ILB flows. Sampled every 60 seconds. After sampling, data is not visible for up to 150 seconds.
client_network: Network of the client instance in ILB flow.
client_subnetwork: Subnetwork of the client instance in ILB flow.
client_zone: Zone of the client instance in ILB flow.
tcp_ssl_proxy/closed_connections GA
Closed connections
DELTAINT641
tcp_ssl_proxy_rule
Number of connections that were terminated over TCP/SSL proxy. Sampled every 60 seconds. After sampling, data is not visible for up to 210 seconds.
proxy_continent: Continent of the SSL proxy which handles the connection: 'America', 'Europe' or 'Asia'.
client_country: Country of the client that opened the TCP/SSL connection (e.g. 'United States', 'Germany').
tcp_ssl_proxy/egress_bytes_count GA
Egress bytes
DELTAINT64By
tcp_ssl_proxy_rule
Number of bytes sent from VM to client using proxy. Sampled every 60 seconds. After sampling, data is not visible for up to 210 seconds.
proxy_continent: Continent of the proxy which handles the connection: 'America', 'Europe' or 'Asia'.
client_country: Country of the client that opened the TCP/SSL connection (e.g. 'United States', 'Germany').
tcp_ssl_proxy/frontend_tcp_rtt GA
Frontend RTT
DELTADISTRIBUTIONms
tcp_ssl_proxy_rule
A distribution of the smoothed RTT (in ms) measured by the proxy's TCP stack, each minute application layer bytes pass from proxy to client. Sampled every 60 seconds. After sampling, data is not visible for up to 210 seconds.
proxy_continent: Continent of the SSL proxy which handles the connection: 'America', 'Europe' or 'Asia'.
client_country: Country of the client that opened the TCP/SSL connection (e.g. 'United States', 'Germany').
tcp_ssl_proxy/ingress_bytes_count GA
Ingress bytes
DELTAINT64By
tcp_ssl_proxy_rule
Number of bytes sent from client to VM using proxy. Sampled every 60 seconds. After sampling, data is not visible for up to 210 seconds.
proxy_continent: Continent of the proxy which handles the connection: 'America', 'Europe' or 'Asia'.
client_country: Country of the client that opened the TCP/SSL connection (e.g. 'United States', 'Germany').
tcp_ssl_proxy/new_connections GA
New connections opened
DELTAINT641
tcp_ssl_proxy_rule
Number of connections that were created over TCP/SSL proxy. Sampled every 60 seconds. After sampling, data is not visible for up to 210 seconds.
proxy_continent: Continent of the SSL proxy which handles the connection: 'America', 'Europe' or 'Asia'.
client_country: Country of the client that opened the TCP/SSL connection (e.g. 'United States', 'Germany').
tcp_ssl_proxy/open_connections GA
Open Connections
GAUGEINT641
tcp_ssl_proxy_rule
Current number of outstanding connections through the TCP/SSL proxy. Sampled every 60 seconds. After sampling, data is not visible for up to 210 seconds.
proxy_continent: Continent of the SSL proxy which handles the connection: 'America', 'Europe' or 'Asia'.
client_country: Country of the client that opened the TCP/SSL connection (e.g. 'United States', 'Germany').

Table generated at 2021-05-06 13:46:31 UTC.