Compute V1 Client - Class OutlierDetection (1.18.0)

Reference documentation and code samples for the Compute V1 Client class OutlierDetection.

Settings controlling the eviction of unhealthy hosts from the load balancing pool for the backend service.

Generated from protobuf message google.cloud.compute.v1.OutlierDetection

Namespace

Google \ Cloud \ Compute \ V1

Methods

__construct

Constructor.

Parameters
Name Description
data array

Optional. Data for populating the Message object.

↳ base_ejection_time Google\Cloud\Compute\V1\Duration

The base time that a backend endpoint is ejected for. Defaults to 30000ms or 30s. After a backend endpoint is returned back to the load balancing pool, it can be ejected again in another ejection analysis. Thus, the total ejection time is equal to the base ejection time multiplied by the number of times the backend endpoint has been ejected. Defaults to 30000ms or 30s.

↳ consecutive_errors int

Number of consecutive errors before a backend endpoint is ejected from the load balancing pool. When the backend endpoint is accessed over HTTP, a 5xx return code qualifies as an error. Defaults to 5.

↳ consecutive_gateway_failure int

The number of consecutive gateway failures (502, 503, 504 status or connection errors that are mapped to one of those status codes) before a consecutive gateway failure ejection occurs. Defaults to 3.

↳ enforcing_consecutive_errors int

The percentage chance that a backend endpoint will be ejected when an outlier status is detected through consecutive 5xx. This setting can be used to disable ejection or to ramp it up slowly. Defaults to 0.

↳ enforcing_consecutive_gateway_failure int

The percentage chance that a backend endpoint will be ejected when an outlier status is detected through consecutive gateway failures. This setting can be used to disable ejection or to ramp it up slowly. Defaults to 100.

↳ enforcing_success_rate int

The percentage chance that a backend endpoint will be ejected when an outlier status is detected through success rate statistics. This setting can be used to disable ejection or to ramp it up slowly. Defaults to 100. Not supported when the backend service uses Serverless NEG.

↳ interval Google\Cloud\Compute\V1\Duration

Time interval between ejection analysis sweeps. This can result in both new ejections and backend endpoints being returned to service. The interval is equal to the number of seconds as defined in outlierDetection.interval.seconds plus the number of nanoseconds as defined in outlierDetection.interval.nanos. Defaults to 1 second.

↳ max_ejection_percent int

Maximum percentage of backend endpoints in the load balancing pool for the backend service that can be ejected if the ejection conditions are met. Defaults to 50%.

↳ success_rate_minimum_hosts int

The number of backend endpoints in the load balancing pool that must have enough request volume to detect success rate outliers. If the number of backend endpoints is fewer than this setting, outlier detection via success rate statistics is not performed for any backend endpoint in the load balancing pool. Defaults to 5. Not supported when the backend service uses Serverless NEG.

↳ success_rate_request_volume int

The minimum number of total requests that must be collected in one interval (as defined by the interval duration above) to include this backend endpoint in success rate based outlier detection. If the volume is lower than this setting, outlier detection via success rate statistics is not performed for that backend endpoint. Defaults to 100. Not supported when the backend service uses Serverless NEG.

↳ success_rate_stdev_factor int

This factor is used to determine the ejection threshold for success rate outlier ejection. The ejection threshold is the difference between the mean success rate, and the product of this factor and the standard deviation of the mean success rate: mean - (stdev * successRateStdevFactor). This factor is divided by a thousand to get a double. That is, if the desired factor is 1.9, the runtime value should be 1900. Defaults to 1900. Not supported when the backend service uses Serverless NEG.

getBaseEjectionTime

The base time that a backend endpoint is ejected for. Defaults to 30000ms or 30s. After a backend endpoint is returned back to the load balancing pool, it can be ejected again in another ejection analysis. Thus, the total ejection time is equal to the base ejection time multiplied by the number of times the backend endpoint has been ejected. Defaults to 30000ms or 30s.

Returns
Type Description
Google\Cloud\Compute\V1\Duration|null

hasBaseEjectionTime

clearBaseEjectionTime

setBaseEjectionTime

The base time that a backend endpoint is ejected for. Defaults to 30000ms or 30s. After a backend endpoint is returned back to the load balancing pool, it can be ejected again in another ejection analysis. Thus, the total ejection time is equal to the base ejection time multiplied by the number of times the backend endpoint has been ejected. Defaults to 30000ms or 30s.

Parameter
Name Description
var Google\Cloud\Compute\V1\Duration
Returns
Type Description
$this

getConsecutiveErrors

Number of consecutive errors before a backend endpoint is ejected from the load balancing pool. When the backend endpoint is accessed over HTTP, a 5xx return code qualifies as an error. Defaults to 5.

Returns
Type Description
int

hasConsecutiveErrors

clearConsecutiveErrors

setConsecutiveErrors

Number of consecutive errors before a backend endpoint is ejected from the load balancing pool. When the backend endpoint is accessed over HTTP, a 5xx return code qualifies as an error. Defaults to 5.

Parameter
Name Description
var int
Returns
Type Description
$this

getConsecutiveGatewayFailure

The number of consecutive gateway failures (502, 503, 504 status or connection errors that are mapped to one of those status codes) before a consecutive gateway failure ejection occurs. Defaults to 3.

Returns
Type Description
int

hasConsecutiveGatewayFailure

clearConsecutiveGatewayFailure

setConsecutiveGatewayFailure

The number of consecutive gateway failures (502, 503, 504 status or connection errors that are mapped to one of those status codes) before a consecutive gateway failure ejection occurs. Defaults to 3.

Parameter
Name Description
var int
Returns
Type Description
$this

getEnforcingConsecutiveErrors

The percentage chance that a backend endpoint will be ejected when an outlier status is detected through consecutive 5xx. This setting can be used to disable ejection or to ramp it up slowly. Defaults to 0.

Returns
Type Description
int

hasEnforcingConsecutiveErrors

clearEnforcingConsecutiveErrors

setEnforcingConsecutiveErrors

The percentage chance that a backend endpoint will be ejected when an outlier status is detected through consecutive 5xx. This setting can be used to disable ejection or to ramp it up slowly. Defaults to 0.

Parameter
Name Description
var int
Returns
Type Description
$this

getEnforcingConsecutiveGatewayFailure

The percentage chance that a backend endpoint will be ejected when an outlier status is detected through consecutive gateway failures. This setting can be used to disable ejection or to ramp it up slowly. Defaults to 100.

Returns
Type Description
int

hasEnforcingConsecutiveGatewayFailure

clearEnforcingConsecutiveGatewayFailure

setEnforcingConsecutiveGatewayFailure

The percentage chance that a backend endpoint will be ejected when an outlier status is detected through consecutive gateway failures. This setting can be used to disable ejection or to ramp it up slowly. Defaults to 100.

Parameter
Name Description
var int
Returns
Type Description
$this

getEnforcingSuccessRate

The percentage chance that a backend endpoint will be ejected when an outlier status is detected through success rate statistics. This setting can be used to disable ejection or to ramp it up slowly. Defaults to 100. Not supported when the backend service uses Serverless NEG.

Returns
Type Description
int

hasEnforcingSuccessRate

clearEnforcingSuccessRate

setEnforcingSuccessRate

The percentage chance that a backend endpoint will be ejected when an outlier status is detected through success rate statistics. This setting can be used to disable ejection or to ramp it up slowly. Defaults to 100. Not supported when the backend service uses Serverless NEG.

Parameter
Name Description
var int
Returns
Type Description
$this

getInterval

Time interval between ejection analysis sweeps. This can result in both new ejections and backend endpoints being returned to service. The interval is equal to the number of seconds as defined in outlierDetection.interval.seconds plus the number of nanoseconds as defined in outlierDetection.interval.nanos. Defaults to 1 second.

Returns
Type Description
Google\Cloud\Compute\V1\Duration|null

hasInterval

clearInterval

setInterval

Time interval between ejection analysis sweeps. This can result in both new ejections and backend endpoints being returned to service. The interval is equal to the number of seconds as defined in outlierDetection.interval.seconds plus the number of nanoseconds as defined in outlierDetection.interval.nanos. Defaults to 1 second.

Parameter
Name Description
var Google\Cloud\Compute\V1\Duration
Returns
Type Description
$this

getMaxEjectionPercent

Maximum percentage of backend endpoints in the load balancing pool for the backend service that can be ejected if the ejection conditions are met. Defaults to 50%.

Returns
Type Description
int

hasMaxEjectionPercent

clearMaxEjectionPercent

setMaxEjectionPercent

Maximum percentage of backend endpoints in the load balancing pool for the backend service that can be ejected if the ejection conditions are met. Defaults to 50%.

Parameter
Name Description
var int
Returns
Type Description
$this

getSuccessRateMinimumHosts

The number of backend endpoints in the load balancing pool that must have enough request volume to detect success rate outliers. If the number of backend endpoints is fewer than this setting, outlier detection via success rate statistics is not performed for any backend endpoint in the load balancing pool. Defaults to 5. Not supported when the backend service uses Serverless NEG.

Returns
Type Description
int

hasSuccessRateMinimumHosts

clearSuccessRateMinimumHosts

setSuccessRateMinimumHosts

The number of backend endpoints in the load balancing pool that must have enough request volume to detect success rate outliers. If the number of backend endpoints is fewer than this setting, outlier detection via success rate statistics is not performed for any backend endpoint in the load balancing pool. Defaults to 5. Not supported when the backend service uses Serverless NEG.

Parameter
Name Description
var int
Returns
Type Description
$this

getSuccessRateRequestVolume

The minimum number of total requests that must be collected in one interval (as defined by the interval duration above) to include this backend endpoint in success rate based outlier detection. If the volume is lower than this setting, outlier detection via success rate statistics is not performed for that backend endpoint. Defaults to 100. Not supported when the backend service uses Serverless NEG.

Returns
Type Description
int

hasSuccessRateRequestVolume

clearSuccessRateRequestVolume

setSuccessRateRequestVolume

The minimum number of total requests that must be collected in one interval (as defined by the interval duration above) to include this backend endpoint in success rate based outlier detection. If the volume is lower than this setting, outlier detection via success rate statistics is not performed for that backend endpoint. Defaults to 100. Not supported when the backend service uses Serverless NEG.

Parameter
Name Description
var int
Returns
Type Description
$this

getSuccessRateStdevFactor

This factor is used to determine the ejection threshold for success rate outlier ejection. The ejection threshold is the difference between the mean success rate, and the product of this factor and the standard deviation of the mean success rate: mean - (stdev * successRateStdevFactor). This factor is divided by a thousand to get a double. That is, if the desired factor is 1.9, the runtime value should be 1900. Defaults to 1900. Not supported when the backend service uses Serverless NEG.

Returns
Type Description
int

hasSuccessRateStdevFactor

clearSuccessRateStdevFactor

setSuccessRateStdevFactor

This factor is used to determine the ejection threshold for success rate outlier ejection. The ejection threshold is the difference between the mean success rate, and the product of this factor and the standard deviation of the mean success rate: mean - (stdev * successRateStdevFactor). This factor is divided by a thousand to get a double. That is, if the desired factor is 1.9, the runtime value should be 1900. Defaults to 1900. Not supported when the backend service uses Serverless NEG.

Parameter
Name Description
var int
Returns
Type Description
$this