org.apache.hadoop.hdfs.server.diskbalancer.command

Class QueryCommand

java.lang.Object

org.apache.hadoop.conf.Configured

org.apache.hadoop.hdfs.server.diskbalancer.command.Command

org.apache.hadoop.hdfs.server.diskbalancer.command.QueryCommand

All Implemented Interfaces:

Closeable, AutoCloseable, org.apache.hadoop.conf.Configurable

public class QueryCommand
extends Command

Gets the current status of disk balancer command.

Constructor Summary

Constructors

Constructor and Description
QueryCommand(org.apache.hadoop.conf.Configuration conf) Constructs QueryCommand.

Method Summary

Modifier and Type	Method and Description
void	execute(org.apache.commons.cli.CommandLine cmd) Executes the Client Calls.
void	printHelp() Gets extended help for this command.

Methods inherited from class org.apache.hadoop.hdfs.server.diskbalancer.command.Command

addValidCommandParameters, close, create, getClusterURI, getDataNodeProxy, getDefaultTop, getNodeList, getNodes, getOutputPath, getTopNodes, open, parseTopNodes, populatePathNames, readClusterInfo, recordOutput, setCluster, setClusterURI, setNodesToProcess, setNodesToProcess, setOutputPath, setTopNodes, verifyCommandOptions

Methods inherited from class org.apache.hadoop.conf.Configured

getConf, setConf

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

QueryCommand

public QueryCommand(org.apache.hadoop.conf.Configuration conf)

Constructs QueryCommand.

Parameters:

conf - - Configuration.

Method Detail

execute

public void execute(org.apache.commons.cli.CommandLine cmd)
             throws Exception

Executes the Client Calls.

Specified by:

execute in class Command

Parameters:

cmd - - CommandLine

Throws:

Exception

printHelp

public void printHelp()

Gets extended help for this command.

Specified by:

printHelp in class Command