AWS::Batch::SchedulingPolicy FairsharePolicy - Amazon CloudFormation
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AWS::Batch::SchedulingPolicy FairsharePolicy

The fair share policy for a scheduling policy.

Syntax

To declare this entity in your Amazon CloudFormation template, use the following syntax:

JSON

{ "ComputeReservation" : Double, "ShareDecaySeconds" : Double, "ShareDistribution" : [ ShareAttributes, ... ] }

Properties

ComputeReservation

A value used to reserve some of the available maximum vCPU for fair share identifiers that have not yet been used.

The reserved ratio is (computeReservation/100)^ActiveFairShares where ActiveFairShares is the number of active fair share identifiers.

For example, a computeReservation value of 50 indicates that Amazon Batch should reserve 50% of the maximum available vCPU if there is only one fair share identifier, 25% if there are two fair share identifiers, and 12.5% if there are three fair share identifiers. A computeReservation value of 25 indicates that Amazon Batch should reserve 25% of the maximum available vCPU if there is only one fair share identifier, 6.25% if there are two fair share identifiers, and 1.56% if there are three fair share identifiers.

The minimum value is 0 and the maximum value is 99.

Required: No

Type: Double

Update requires: No interruption

ShareDecaySeconds

The time period to use to calculate a fair share percentage for each fair share identifier in use, in seconds. A value of zero (0) indicates that only current usage should be measured. The decay allows for more recently run jobs to have more weight than jobs that ran earlier. The maximum supported value is 604800 (1 week).

Required: No

Type: Double

Update requires: No interruption

ShareDistribution

An array of SharedIdentifier objects that contain the weights for the fair share identifiers for the fair share policy. Fair share identifiers that aren't included have a default weight of 1.0.

Required: No

Type: List of ShareAttributes

Update requires: No interruption

See also