Class BasicYarnAutoscalingConfig (0.7.0)

Version 0.7.0

• 5.15.1 (latest)
• 5.15.0
• 5.14.0
• 5.13.0
• 5.12.0
• 5.10.2
• 5.9.3
• 5.8.0
• 5.7.0
• 5.6.0
• 5.5.1
• 5.4.3
• 5.3.0
• 5.2.0
• 5.1.0
• 5.0.3
• 4.0.3
• 3.3.2
• 3.2.0
• 3.1.1
• 3.0.0
• 2.6.2
• 2.5.0
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• 2.3.1
• 2.2.0
• 2.0.2
• 1.1.3
• 1.0.1
• 0.8.2
• 0.7.0
• 0.6.1
• 0.5.0

Basic autoscaling configurations for YARN.

Required. Fraction of average pending memory in the last cooldown period for which to add workers. A scale-up factor of 1.0 will result in scaling up so that there is no pending memory remaining after the update (more aggressive scaling). A scale-up factor closer to 0 will result in a smaller magnitude of scaling up (less aggressive scaling). Bounds: [0.0, 1.0].

Optional. Minimum scale-up threshold as a fraction of total cluster size before scaling occurs. For example, in a 20-worker cluster, a threshold of 0.1 means the autoscaler must recommend at least a 2-worker scale-up for the cluster to scale. A threshold of 0 means the autoscaler will scale up on any recommended change. Bounds: [0.0, 1.0]. Default: 0.0.