Hadoop MapReduce hsadmin

Utility to run a MapReduce hsadmin client in Hadoop

Using mapred hsadmin command.

  

Eg.

Runs a MapReduce hsadmin client for execute JobHistoryServer administrative commands.

Usage: mapred hsadmin [-refreshUserToGroupsMappings] | [-refreshSuperUserGroupsConfiguration] | [-refreshAdminAcls] | [-refreshLoadedJobCache] | [-refreshLogRetentionSettings] | [-refreshJobRetentionSettings] | [-getGroups [username]] | [-help [cmd]]

COMMAND_OPTION	Description
-refreshUserToGroupsMappings	Refresh user-to-groups mappings
-refreshSuperUserGroupsConfiguration	Refresh superuser proxy groups mappings
-refreshAdminAcls	Refresh acls for administration of Job history server
-refreshLoadedJobCache	Refresh loaded job cache of Job history server
-refreshJobRetentionSettings	Refresh job history period, job cleaner settings
-refreshLogRetentionSettings	Refresh log retention period and log retention check interval
-getGroups [username]	Get the groups which given user belongs to
-help [cmd]	Displays help for the given command or all commands if none is specified.



Input:
Command Options:
Result: