Resource-aware scheduler

A resource-aware scheduler helps users specify the amount of resources required for a single instance of any component (spout or bolt). We can enable the resource-aware scheduler by specifying the following property in the storm.yaml file:

storm.scheduler: "org.apache.storm.scheduler.resource.ResourceAwareScheduler" 

Component-level configuration

You can allocate the memory requirement to any component. Here are the methods available to allocate the memory to a single instance of any component:

public T setMemoryLoad(Number onHeap, Number offHeap) 

Alternatively, you can use the following:

public T setMemoryLoad(Number onHeap) 

The following is the definition of each argument:

• onHeap...