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Yandex Application Load Balancer metrics

Written by
Updated at April 28, 2025

This section describes Application Load Balancer metrics delivered to Monitoring.

The name label contains the metric name.

All Application Load Balancer metrics share the service=application-load-balancer label.

HTTP metrics

Labels shared by all HTTP metrics:

Label Value
backend Backend name
backend_group Backend group name
http_router HTTP router name
load_balancer L7 load balancer name
route Route name
virtual_host Virtual host name
zone Availability zone
Metric name
Type, units		 Description
Labels
load_balancer.request_bytes_per_second
DGAUGE, bytes per second		 Total size of load balancer requests per second.
With the zone label added, the system will only count requests from the specified availability zone.
load_balancer.requests_count_per_second
DGAUGE, requests per second		 Number of load balancer requests per second.
With the zone label added, the system will only count requests from the specified availability zone.
This metric features the code special label containing the response code, e.g., 200 or grpc:CANCELLED.
load_balancer.requests_latency_milliseconds
IGUAGE, milliseconds		 Response latency distribution histogram, 50th to 99th percentiles, in milliseconds. (Load balancer response latency is the time span between it receiving the request's first byte and sending the response's last byte.)
With the zone label added, the system will only count responses in the specified availability zone.
This metric features the bin special label containing histogram buckets.
load_balancer.response_bytes_per_second
DGAUGE, bytes per second		 Total size of load balancer responses per second.
With the zone label added, the system will only count responses in the specified availability zone.

Scaling metrics

Metric name
Type, units		 Description
Labels
load_balancer.scaling.active_connections
DGAUGE, count		 Number of active connections
load_balancer.scaling.bytes_per_second
DGAUGE, bytes per second		 Amount of data processed per second
load_balancer.scaling.connections_per_second
DGAUGE, connections per second		 Number of connections per second
load_balancer.scaling.http_received_bytes_per_second
DGAUGE, bytes per second		 Amount of data received per second
load_balancer.scaling.http_transmitted_bytes_per_second
DGAUGE, bytes per second		 Amount of data transmitted per second
load_balancer.scaling.requests_per_second
DGAUGE, requests per second		 Number of requests per second

Smart Web Security metrics

Labels shared by all Smart Web Security metrics:

Label Value
Common labels
load_balancer L7 load balancer name
http_router HTTP router name
virtual_host Virtual host name
Special labels
security_profile Security profile ID
rule_name Security rule name
Name
Type, units		 Description
load_balancer.smart_web_security.
requests_per_second
DGAUGE, requests per second		 Number of requests sent to the protected resource per second.
Common labels:
This metric features the antirobot_verdict special label containing the action to take on the request based on validation results. The possible values are:
  • allow: Request sent to a virtual host.
  • captcha: Request sent to Yandex SmartCaptcha for additional verification.
  • deny: Request blocked.
load_balancer.smart_web_security.
arl_requests_per_second
DGAUGE, requests per second		 Number of requests sent to the protected resource through Advanced Rate Limiter per second.
This metric features the folderId common label containing the folder ID.

Special labels:
  • arl_profile: Advanced Rate Limiter profile ID.
  • arl_verdict: Action to take on the request based on validation results. The possible values are:
    • allow: Request sent to a virtual host.
    • deny: Request blocked.
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