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Myriad provides the capability for fine-grained scaling via the Myriad Web Console or the Myriad REST API. Scaling allows is done by using the flexup and flexdown feature. Flexup expands the cluster and flexdown shrinks the cluster. While doing so, the number of instances and size of the scale are specified.

Web Console

 

REST API

To scale a cluster up or down, use the Cluster API. The Cluster API provide flexup and flex down capability the changes the size of one or more instances in a cluster. The instance size is a profile parameter that is a predefined value of zero, small, medium, and large. These predefined values are specified in the Myriad configuration file (myriad-config-default.yml). To retrieve the Myriad configuration and the Myriad Scheduler state, use the Configuration API and State API.

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