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.
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
unitfield in theMetricDescriptorreference.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 following table maps metric path prefixes to the load balancer types:
| Metric path | Load balancer |
|---|---|
https/ |
External HTTP(S) load balancer |
https/internal/ |
Internal HTTP(S) load balancer |
l3/external/ |
Network load balancer |
l3/internal/ |
Internal TCP/UDP load balancer |
tcp_ssl_proxy/ |
TCP proxy load balancer SSL proxy load balancer |
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 |
|
DELTA, DISTRIBUTION, mshttps_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, one of [HTTP/1.0, HTTP/1.1, HTTP/2.0, SPDY, 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 that 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 (for example, 'United States', 'Germany').
|
https/backend_request_bytes_count
GA
Backend Request Bytes |
|
DELTA, INT64, Byhttps_lb_rule |
The number of bytes sent as requests from external 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 that 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 |
|
DELTA, INT64, 1https_lb_rule |
The number of requests served by backends of external 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 that 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 |
|
DELTA, INT64, Byhttps_lb_rule |
The number of bytes sent as responses from backends (or cache) to external 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 that 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 |
|
DELTA, DISTRIBUTION, mshttps_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 that handled the hit: 'America', 'Europe' or 'Asia'.
client_country:
Country of the client that issued the HTTP request (for example, 'United States', 'Germany').
|
https/internal/backend_latencies
GA
Backend latencies |
|
DELTA, DISTRIBUTION, msinternal_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 |
|
DELTA, INT64, Byinternal_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 |
|
DELTA, INT64, 1internal_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 |
|
DELTA, INT64, Byinternal_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 |
|
DELTA, DISTRIBUTION, msinternal_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 |
|
DELTA, INT64, Byhttps_lb_rule |
The number of bytes sent as requests from clients to external 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, one of [HTTP/1.0, HTTP/1.1, HTTP/2.0, SPDY, 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 that 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 (for example, 'United States', 'Germany').
|
https/request_count
GA
Request count |
|
DELTA, INT64, 1https_lb_rule |
The number of requests served by external 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, one of [HTTP/1.0, HTTP/1.1, HTTP/2.0, QUIC/HTTP/2.0, 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 that 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 (for example, 'United States', 'Germany').
|
https/response_bytes_count
GA
Response bytes |
|
DELTA, INT64, Byhttps_lb_rule |
The number of bytes sent as responses from external 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, one of [HTTP/1.0, HTTP/1.1, HTTP/2.0, SPDY, 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 that 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 (for example, 'United States', 'Germany').
|
https/total_latencies
GA
Total latency |
|
DELTA, DISTRIBUTION, mshttps_lb_rule |
A distribution of the latency calculated from when the request was received by the external HTTP(S) load balancer 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, one of [HTTP/1.0, HTTP/1.1, HTTP/2.0, SPDY, 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 that 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 (for example, 'United States', 'Germany').
|
l3/external/egress_bytes_count
GA
Egress bytes |
|
DELTA, INT64, Bytcp_lb_rule, udp_lb_rule |
The number of bytes sent from external TCP/UDP network load balancer 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 that initiated flow to external TCP/UDP network load balancer.
client_country:
Country of the client that initiated flow to external TCP/UDP network load balancer.
|
l3/external/egress_packets_count
GA
Egress packets |
|
DELTA, INT64, 1tcp_lb_rule, udp_lb_rule |
The number of packets sent from external TCP/UDP network load balancer 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 that initiated flow to external TCP/UDP network load balancer.
client_country:
Country of the client that initiated flow to external TCP/UDP network load balancer.
|
l3/external/ingress_bytes_count
GA
Ingress bytes |
|
DELTA, INT64, Bytcp_lb_rule, udp_lb_rule |
The number of bytes sent from client to external TCP/UDP network load balancer 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 that initiated flow to external TCP/UDP network load balancer.
client_country:
Country of the client that initiated flow to external TCP/UDP network load balancer.
|
l3/external/ingress_packets_count
GA
Ingress packets |
|
DELTA, INT64, 1tcp_lb_rule, udp_lb_rule |
The number of packets sent from client to external TCP/UDP network load balancer backend. Sampled every 60 seconds. After sampling, data is not visible for up to 150 seconds.
client_continent:
Continent of the client that initiated flow to external TCP/UDP network load balancer.
client_country:
Country of the client that initiated flow to external TCP/UDP network load balancer.
|
l3/external/rtt_latencies
GA
RTT latencies |
|
DELTA, DISTRIBUTION, mstcp_lb_rule |
A distribution of RTT measured over TCP connections for external TCP/UDP network load balancer flows. Sampled every 60 seconds. After sampling, data is not visible for up to 150 seconds.
client_continent:
Continent of the client that initiated flow to external TCP/UDP network load balancer.
client_country:
Country of the client that initiated flow to external TCP/UDP network load balancer.
|
l3/internal/egress_bytes_count
GA
Egress bytes |
|
DELTA, INT64, Byinternal_tcp_lb_rule, internal_udp_lb_rule |
The number of bytes sent from internal TCP/UDP load balancer 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 internal TCP/UDP load balancer flow.
client_subnetwork:
Subnetwork of the client instance in internal TCP/UDP load balancer flow.
client_zone:
Zone of the client instance in internal TCP/UDP load balancer flow.
|
l3/internal/egress_packets_count
GA
Egress packets |
|
DELTA, INT64, 1internal_tcp_lb_rule, internal_udp_lb_rule |
The number of packets sent from internal TCP/UDP load balancer 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 internal TCP/UDP load balancer flow.
client_subnetwork:
Subnetwork of the client instance in internal TCP/UDP load balancer flow.
client_zone:
Zone of the client instance in internal TCP/UDP load balancer flow.
|
l3/internal/ingress_bytes_count
GA
Ingress bytes |
|
DELTA, INT64, Byinternal_tcp_lb_rule, internal_udp_lb_rule |
The number of bytes sent from client to internal TCP/UDP load balancer 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 internal TCP/UDP load balancer flow.
client_subnetwork:
Subnetwork of the client instance in internal TCP/UDP load balancer flow.
client_zone:
Zone of the client instance in internal TCP/UDP load balancer flow.
|
l3/internal/ingress_packets_count
GA
Ingress packets |
|
DELTA, INT64, 1internal_tcp_lb_rule, internal_udp_lb_rule |
The number of packets sent from client to internal TCP/UDP load balancer backend. Sampled every 60 seconds. After sampling, data is not visible for up to 150 seconds.
client_network:
Network of the client instance in internal TCP/UDP load balancer flow.
client_subnetwork:
Subnetwork of the client instance in internal TCP/UDP load balancer flow.
client_zone:
Zone of the client instance in internal TCP/UDP load balancer flow.
|
l3/internal/rtt_latencies
GA
RTT latencies |
|
DELTA, DISTRIBUTION, msinternal_tcp_lb_rule |
A distribution of RTT measured over TCP connections for internal TCP/UDP load balancer flows. Sampled every 60 seconds. After sampling, data is not visible for up to 150 seconds.
client_network:
Network of the client instance in internal TCP/UDP load balancer flow.
client_subnetwork:
Subnetwork of the client instance in internal TCP/UDP load balancer flow.
client_zone:
Zone of the client instance in internal TCP/UDP load balancer flow.
|
tcp_ssl_proxy/closed_connections
GA
Closed connections |
|
DELTA, INT64, 1tcp_ssl_proxy_rule |
Number of connections that were terminated over TCP proxy or SSL proxy load balancer. Sampled every 60 seconds. After sampling, data is not visible for up to 210 seconds.
proxy_continent:
Continent of the SSL proxy that handles the connection: 'America', 'Europe' or 'Asia'.
client_country:
Country of the client that opened the TCP/SSL connection (for example, 'United States', 'Germany').
|
tcp_ssl_proxy/egress_bytes_count
GA
Egress bytes |
|
DELTA, INT64, Bytcp_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 that handles the connection: 'America', 'Europe' or 'Asia'.
client_country:
Country of the client that opened the TCP/SSL connection (for example, 'United States', 'Germany').
|
tcp_ssl_proxy/frontend_tcp_rtt
GA
Frontend RTT |
|
DELTA, DISTRIBUTION, mstcp_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 that handles the connection: 'America', 'Europe' or 'Asia'.
client_country:
Country of the client that opened the TCP/SSL connection (for example, 'United States', 'Germany').
|
tcp_ssl_proxy/ingress_bytes_count
GA
Ingress bytes |
|
DELTA, INT64, Bytcp_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 that handles the connection: 'America', 'Europe' or 'Asia'.
client_country:
Country of the client that opened the TCP/SSL connection (for example, 'United States', 'Germany').
|
tcp_ssl_proxy/new_connections
GA
New connections opened |
|
DELTA, INT64, 1tcp_ssl_proxy_rule |
Number of connections that were created over TCP proxy or SSL proxy load balancer. Sampled every 60 seconds. After sampling, data is not visible for up to 210 seconds.
proxy_continent:
Continent of the SSL proxy that handles the connection: 'America', 'Europe' or 'Asia'.
client_country:
Country of the client that opened the TCP/SSL connection (for example, 'United States', 'Germany').
|
tcp_ssl_proxy/open_connections
GA
Open Connections |
|
GAUGE, INT64, 1tcp_ssl_proxy_rule |
Current number of outstanding connections through the TCP proxy or SSL proxy load balancer. Sampled every 60 seconds. After sampling, data is not visible for up to 210 seconds.
proxy_continent:
Continent of the SSL proxy that handles the connection: 'America', 'Europe' or 'Asia'.
client_country:
Country of the client that opened the TCP/SSL connection (for example, 'United States', 'Germany').
|
Table generated at 2021-09-17 01:55:39 UTC.