Mastering Apache Storm

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: The amount of on heap space an instance of this component will consume in megabytes
• offHeap: The amount of off heap space an instance of this component will consume in megabytes

The data type of both onHeap and offHeap is Number, and the default value is 0.0.