org.apache.hadoop.hbase.util

Class HFileV1Detector

java.lang.Object

Configured

org.apache.hadoop.hbase.util.HFileV1Detector

public class HFileV1Detector
extends Configured

Tool to detect presence of any HFileV1 in the given directory. It prints all such regions which have such files.

To print the help section of the tool:

• ./bin/hbase org.apache.hadoop.hbase.util.HFileV1Detector --h or,
• java -cp `hbase classpath` org.apache.hadoop.hbase.util.HFileV1Detector --h

It also supports -h, --help, -help options.

Constructor Summary

Constructors

Constructor and Description
HFileV1Detector()

Method Summary

Modifier and Type	Method and Description
FileLink	getFileLinkWithPreNSPath(Path storeFilePath) Creates a FileLink which adds pre-namespace paths in its list of available paths.
static void	main(java.lang.String[] args)
int	run(java.lang.String[] args) Checks for HFileV1.

Methods inherited from class java.lang.Object

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

Constructor Detail

HFileV1Detector

public HFileV1Detector()

Method Detail

run

public int run(java.lang.String[] args)
        throws java.io.IOException,
               ParseException

Checks for HFileV1.

Returns:

0 when no HFileV1 is present. 1 when a HFileV1 is present or, when there is a file with corrupt major version (neither V1 nor V2). -1 in case of any error/exception

Throws:

java.io.IOException

ParseException

getFileLinkWithPreNSPath

public FileLink getFileLinkWithPreNSPath(Path storeFilePath)
                                  throws java.io.IOException

Creates a FileLink which adds pre-namespace paths in its list of available paths. This is used when reading a snapshot file in a pre-namespace file layout, for example, while upgrading.

Parameters:

storeFilePath -

Returns:

a FileLink which could read from pre-namespace paths.

Throws:

java.io.IOException

main

public static void main(java.lang.String[] args)
                 throws java.lang.Exception

Throws:

java.lang.Exception