reduceContext

Object Description	Contains the key-value pairs to process during the reduce stage. This object includes the following properties and methods: reduceContext.isRestarted reduceContext.executionNo reduceContext.errors reduceContext.key reduceContext.values reduceContext.write(options)
Since	2015.2

Syntax

The following code snippet shows the syntax for this member. It is not a functional example. For a complete script example, see Map/Reduce Script Samples.

          ...
function reduce(context)
{
    context.write({
        key: context.key , 
        value: context.values.length 
    }); 
}
... 

        

Related Topics

reduce(reduceContext)

General Notices