org.apache.hadoop.mapred.tools
Class MRAdmin
java.lang.Object
org.apache.hadoop.conf.Configured
org.apache.hadoop.mapred.tools.MRAdmin
- All Implemented Interfaces:
- org.apache.hadoop.conf.Configurable, org.apache.hadoop.util.Tool
@InterfaceAudience.Private
public class MRAdmin
- extends org.apache.hadoop.conf.Configured
- implements org.apache.hadoop.util.Tool
Administrative access to Hadoop Map-Reduce.
Currently it only provides the ability to connect to the JobTracker
and 1) refresh the service-level authorization policy, 2) refresh queue acl
properties.
Constructor Summary |
MRAdmin()
|
MRAdmin(org.apache.hadoop.conf.Configuration conf)
|
Methods inherited from class org.apache.hadoop.conf.Configured |
getConf |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface org.apache.hadoop.conf.Configurable |
getConf |
MRAdmin
public MRAdmin()
MRAdmin
public MRAdmin(org.apache.hadoop.conf.Configuration conf)
setConf
public void setConf(org.apache.hadoop.conf.Configuration conf)
- Specified by:
setConf
in interface org.apache.hadoop.conf.Configurable
- Overrides:
setConf
in class org.apache.hadoop.conf.Configured
refreshSuperUserGroupsConfiguration
public int refreshSuperUserGroupsConfiguration()
throws java.io.IOException
- refreshSuperUserGroupsConfiguration
JobTracker
.
- Returns:
- exitcode 0 on success, non-zero on failure
- Throws:
java.io.IOException
run
public int run(java.lang.String[] args)
throws java.lang.Exception
- Specified by:
run
in interface org.apache.hadoop.util.Tool
- Throws:
java.lang.Exception
main
public static void main(java.lang.String[] args)
throws java.lang.Exception
- Throws:
java.lang.Exception
Copyright © 2009 The Apache Software Foundation