org.apache.hadoop.hdfs.tools.offlineImageViewer

类 OfflineImageViewer

java.lang.Object

org.apache.hadoop.hdfs.tools.offlineImageViewer.OfflineImageViewer

@InterfaceAudience.Private
public class OfflineImageViewer
extends Object

OfflineImageViewer to dump the contents of an Hadoop image file to XML or the console. Main entry point into utility, either via the command line or programatically.

字段概要

字段

限定符和类型	字段和说明
static org.apache.commons.logging.Log	LOG

构造器概要

构造器

构造器和说明
OfflineImageViewer(String inputFile, org.apache.hadoop.hdfs.tools.offlineImageViewer.ImageVisitor processor, boolean skipBlocks)

方法概要

方法

限定符和类型	方法和说明
static org.apache.commons.cli.Options	buildOptions() Build command-line options and descriptions
void	go() Process image file.
static void	main(String[] args) Entry point to command-line-driven operation.

从类继承的方法 java.lang.Object

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

字段详细资料

LOG

public static final org.apache.commons.logging.Log LOG

构造器详细资料

OfflineImageViewer

public OfflineImageViewer(String inputFile,
                  org.apache.hadoop.hdfs.tools.offlineImageViewer.ImageVisitor processor,
                  boolean skipBlocks)

方法详细资料

go

public void go()
        throws IOException

Process image file.

抛出:

IOException

buildOptions

public static org.apache.commons.cli.Options buildOptions()

Build command-line options and descriptions

main

public static void main(String[] args)
                 throws IOException

Entry point to command-line-driven operation. User may specify options and start fsimage viewer from the command line. Program will process image file and exit cleanly or, if an error is encountered, inform user and exit.

参数:

args - Command line options

抛出:

IOException