Submitting a MapReduce Task on Windows

Scenarios

If you want to transmit a job from Windows to Linux, set mapreduce.app-submission.cross-platform to true. If this parameter is unavailable for a cluster or its value is false, the function of transmitting MapReduce tasks from Windows to Linux is not supported. In this case, perform the following operations to add this parameter or change its value to enable this function:

This section applies to MRS 3.x or later.

Configuration Description

Adjust the following parameter in the mapred-site.xml configuration file on the client to enable the running of MapReduce tasks: The mapred-site.xml configuration file is in the config directory of the client installation path, for example, /opt/client/Yarn/config.

**Table 1** Parameters
Parameter	Description	Default Value
mapreduce.app-submission.cross-platform	Indicates whether to support running of MapReduce tasks after they are transmitted from Windows to Linux. When the parameter value is true, the running of MapReduce tasks is supported. When the parameter value is false, the running of MapReduce tasks is not supported.	true