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Workspace Spectrum Symphony
Components Version 7.3.2
Created by Guest
Created on Aug 29, 2025

RELATED IDEAS

Enable Global Capacity Limits in HostFactory with Configurable Requestor-Level Control

Background:  The CVA environment comprises of two application types:

  1. Under /cva parent Consumer – must run exclusively on on-demand instances.
  2. Under /cvaSpot parent Consumer – can run workload on both on-demand and spot instances.

To support this architecture, we have implemented two separate requestors with the following configurations:

  1. symA:
    1. Tagged to the /cvaSpot consumer
    2. Configured to provide spot capacity
    3. Utilizes resources from RGs: ComputeHosts and ComputeHostsSpot
    4. Template: 3500 units (16 of each), with percentondemand set to 0
  2. symB:
    1. Tagged to the /cva consumer
    2. Configured to provide on-demand capacity
    3. Utilizes resources from RGs: ComputeHosts
    4. Template: 3500 units (16 of each), with percentondemand set to 100

Although the cluster is intended to operate with a maximum capacity of 56K units, each requestor independently contributes 56K units due to their identical template configurations. This results in the cluster scaling to double the intended capacity.

Use Case: The objective is to introduce a feature within the product that enables global maximum limit on HostFactory capacity. This would be governed by a configurable parameter, allowing for two distinct operational modes:

  1. Per-Requestor Limits – Enables users to apply capacity limits individually to each requestor.
  2. Global Limits Across Multiple Requestors – Allows users to configure multiple requestors while enforcing a shared global capacity limit.

Thanks,

Shruti

Needed By Month

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