Hadoop mradmin Commands

Hadoop mradmin Commands

Command	Description
hadoop mradmin -safemode get	Check Job tracker status
hadoop mradmin -refreshQueues	Reload mapreduce configuration
hadoop mradmin -refreshNodes	Reload active TaskTrackers
hadoop mradmin -refreshServiceAcl	Force Jobtracker to reload service ACL
hadoop mradmin -refreshUserToGroupsMappings	Force jobtracker to reload user group mappings

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