Create an
MultiMRInputConfigBuilder to configure a
MultiMRInput
The preferred usage model is to provide all of the parameters, and use methods to configure
the Input.
For legacy applications, which may already have a fully configured
org.apache.hadoop.conf.Configurationinstance, the inputFormat can be specified as null
Typically, this will be used along with a custom
org.apache.tez.dag.api.VertexManagerPluginor
org.apache.tez.runtime.api.InputInitializer to generate the multiple inputs to be
used by each task. If this is not setup, this will work the same as
org.apache.tez.mapreduce.input.MRInput
Grouping of splits is disabled by default.