The type of error, warning, or notice returned. Current set of possible
values:
- ALL_INSTANCES_UNHEALTHY (WARNING):
All instances in the instance group are unhealthy (not in RUNNING
state).
- BACKEND_SERVICE_DOES_NOT_EXIST (ERROR):
There is no backend service attached to the instance group.
- CAPPED_AT_MAX_NUM_REPLICAS (WARNING):
Autoscaler recommends a size greater than maxNumReplicas.
- CUSTOM_METRIC_DATA_POINTS_TOO_SPARSE (WARNING):
The custom metric samples are not exported often enough to be
a credible base for autoscaling.
- CUSTOM_METRIC_INVALID (ERROR):
The custom metric that was specified does not exist or does not have
the necessary labels.
- MIN_EQUALS_MAX (WARNING):
The minNumReplicas is equal to maxNumReplicas. This means the
autoscaler cannot add or remove instances from the instance group.
- MISSING_CUSTOM_METRIC_DATA_POINTS (WARNING):
The autoscaler did not receive any data from the custom metric
configured for autoscaling.
- MISSING_LOAD_BALANCING_DATA_POINTS (WARNING):
The autoscaler is configured to scale based on a load balancing signal
but the instance group has not received any requests from the load
balancer.
- MODE_OFF (WARNING):
Autoscaling is turned off. The number of instances in the group won't
change automatically. The autoscaling configuration is preserved.
- MODE_ONLY_UP (WARNING):
Autoscaling is in the "Autoscale only out" mode. The autoscaler can add
instances but not remove any.
- MORE_THAN_ONE_BACKEND_SERVICE (ERROR):
The instance group cannot be autoscaled because it has more than one
backend service attached to it.
- NOT_ENOUGH_QUOTA_AVAILABLE (ERROR):
There is insufficient quota for the necessary resources, such as CPU or
number of instances.
- REGION_RESOURCE_STOCKOUT (ERROR):
Shown only for regional autoscalers: there is a resource stockout in
the chosen region.
- SCALING_TARGET_DOES_NOT_EXIST (ERROR):
The target to be scaled does not exist.
- UNSUPPORTED_MAX_RATE_LOAD_BALANCING_CONFIGURATION
(ERROR): Autoscaling does not work with an HTTP/S load balancer that
has been configured for maxRate.
- ZONE_RESOURCE_STOCKOUT (ERROR):
For zonal autoscalers: there is a resource stockout in the chosen zone.
For regional autoscalers: in at least one of the zones you're using
there is a resource stockout.
New values might be added in the future. Some of the values might not be
available in all API versions.
Check the Type enum for the list of possible values.
The type of error, warning, or notice returned. Current set of possible
values:
- ALL_INSTANCES_UNHEALTHY (WARNING):
All instances in the instance group are unhealthy (not in RUNNING
state).
- BACKEND_SERVICE_DOES_NOT_EXIST (ERROR):
There is no backend service attached to the instance group.
- CAPPED_AT_MAX_NUM_REPLICAS (WARNING):
Autoscaler recommends a size greater than maxNumReplicas.
- CUSTOM_METRIC_DATA_POINTS_TOO_SPARSE (WARNING):
The custom metric samples are not exported often enough to be
a credible base for autoscaling.
- CUSTOM_METRIC_INVALID (ERROR):
The custom metric that was specified does not exist or does not have
the necessary labels.
- MIN_EQUALS_MAX (WARNING):
The minNumReplicas is equal to maxNumReplicas. This means the
autoscaler cannot add or remove instances from the instance group.
- MISSING_CUSTOM_METRIC_DATA_POINTS (WARNING):
The autoscaler did not receive any data from the custom metric
configured for autoscaling.
- MISSING_LOAD_BALANCING_DATA_POINTS (WARNING):
The autoscaler is configured to scale based on a load balancing signal
but the instance group has not received any requests from the load
balancer.
- MODE_OFF (WARNING):
Autoscaling is turned off. The number of instances in the group won't
change automatically. The autoscaling configuration is preserved.
- MODE_ONLY_UP (WARNING):
Autoscaling is in the "Autoscale only out" mode. The autoscaler can add
instances but not remove any.
- MORE_THAN_ONE_BACKEND_SERVICE (ERROR):
The instance group cannot be autoscaled because it has more than one
backend service attached to it.
- NOT_ENOUGH_QUOTA_AVAILABLE (ERROR):
There is insufficient quota for the necessary resources, such as CPU or
number of instances.
- REGION_RESOURCE_STOCKOUT (ERROR):
Shown only for regional autoscalers: there is a resource stockout in
the chosen region.
- SCALING_TARGET_DOES_NOT_EXIST (ERROR):
The target to be scaled does not exist.
- UNSUPPORTED_MAX_RATE_LOAD_BALANCING_CONFIGURATION
(ERROR): Autoscaling does not work with an HTTP/S load balancer that
has been configured for maxRate.
- ZONE_RESOURCE_STOCKOUT (ERROR):
For zonal autoscalers: there is a resource stockout in the chosen zone.
For regional autoscalers: in at least one of the zones you're using
there is a resource stockout.
New values might be added in the future. Some of the values might not be
available in all API versions.
Check the Type enum for the list of possible values.
The type of error, warning, or notice returned. Current set of possible
values:
- ALL_INSTANCES_UNHEALTHY (WARNING):
All instances in the instance group are unhealthy (not in RUNNING
state).
- BACKEND_SERVICE_DOES_NOT_EXIST (ERROR):
There is no backend service attached to the instance group.
- CAPPED_AT_MAX_NUM_REPLICAS (WARNING):
Autoscaler recommends a size greater than maxNumReplicas.
- CUSTOM_METRIC_DATA_POINTS_TOO_SPARSE (WARNING):
The custom metric samples are not exported often enough to be
a credible base for autoscaling.
- CUSTOM_METRIC_INVALID (ERROR):
The custom metric that was specified does not exist or does not have
the necessary labels.
- MIN_EQUALS_MAX (WARNING):
The minNumReplicas is equal to maxNumReplicas. This means the
autoscaler cannot add or remove instances from the instance group.
- MISSING_CUSTOM_METRIC_DATA_POINTS (WARNING):
The autoscaler did not receive any data from the custom metric
configured for autoscaling.
- MISSING_LOAD_BALANCING_DATA_POINTS (WARNING):
The autoscaler is configured to scale based on a load balancing signal
but the instance group has not received any requests from the load
balancer.
- MODE_OFF (WARNING):
Autoscaling is turned off. The number of instances in the group won't
change automatically. The autoscaling configuration is preserved.
- MODE_ONLY_UP (WARNING):
Autoscaling is in the "Autoscale only out" mode. The autoscaler can add
instances but not remove any.
- MORE_THAN_ONE_BACKEND_SERVICE (ERROR):
The instance group cannot be autoscaled because it has more than one
backend service attached to it.
- NOT_ENOUGH_QUOTA_AVAILABLE (ERROR):
There is insufficient quota for the necessary resources, such as CPU or
number of instances.
- REGION_RESOURCE_STOCKOUT (ERROR):
Shown only for regional autoscalers: there is a resource stockout in
the chosen region.
- SCALING_TARGET_DOES_NOT_EXIST (ERROR):
The target to be scaled does not exist.
- UNSUPPORTED_MAX_RATE_LOAD_BALANCING_CONFIGURATION
(ERROR): Autoscaling does not work with an HTTP/S load balancer that
has been configured for maxRate.
- ZONE_RESOURCE_STOCKOUT (ERROR):
For zonal autoscalers: there is a resource stockout in the chosen zone.
For regional autoscalers: in at least one of the zones you're using
there is a resource stockout.
New values might be added in the future. Some of the values might not be
available in all API versions.
Check the Type enum for the list of possible values.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2026-01-09 UTC."],[],[]]