org.apache.hadoop.hbase.backup

Class HBackupFileSystem

java.lang.Object

org.apache.hadoop.hbase.backup.HBackupFileSystem

@InterfaceAudience.Private
 @InterfaceStability.Evolving
public class HBackupFileSystem
extends Object

View to an on-disk Backup Image FileSytem Provides the set of methods necessary to interact with the on-disk Backup Image data.

Field Summary

Fields

Modifier and Type	Field and Description
static Log	LOG

Method Summary

Modifier and Type	Method and Description
static void	checkImageManifestExist(HashMap<TableName,BackupManifest> backupManifestMap, TableName[] tableArray, Configuration conf, Path backupRootPath, String backupId) Check whether the backup image path and there is manifest file in the path.
static String	getLogBackupDir(String backupRootDir, String backupId) Given the backup root dir and the backup id, return the log file location for an incremental backup.
static Path	getLogBackupPath(String backupRootDir, String backupId)
static BackupManifest	getManifest(TableName tableName, Configuration conf, Path backupRootPath, String backupId)
static String	getTableBackupDir(String backupRootDir, String backupId, TableName tableName) Given the backup root dir, backup id and the table name, return the backup image location, which is also where the backup manifest file is.
static Path	getTableBackupPath(TableName tableName, Path backupRootPath, String backupId) Given the backup root dir, backup id and the table name, return the backup image location, which is also where the backup manifest file is.

Methods inherited from class java.lang.Object

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

Field Detail

LOG

public static final Log LOG

Method Detail

getTableBackupDir

public static String getTableBackupDir(String backupRootDir,
                                       String backupId,
                                       TableName tableName)

Given the backup root dir, backup id and the table name, return the backup image location, which is also where the backup manifest file is. return value look like: "hdfs://backup.hbase.org:9000/user/biadmin/backup1/backup_1396650096738/default/t1_dn/"

Parameters:

backupRootDir - backup root directory

backupId - backup id

table - table name

Returns:

backupPath String for the particular table

getTableBackupPath

public static Path getTableBackupPath(TableName tableName,
                                      Path backupRootPath,
                                      String backupId)

Given the backup root dir, backup id and the table name, return the backup image location, which is also where the backup manifest file is. return value look like: "hdfs://backup.hbase.org:9000/user/biadmin/backup_1396650096738/backup1/default/t1_dn/"

Parameters:

backupRootPath - backup root path

tableName - table name

backupId - backup Id

Returns:

backupPath for the particular table

getLogBackupDir

public static String getLogBackupDir(String backupRootDir,
                                     String backupId)

Given the backup root dir and the backup id, return the log file location for an incremental backup.

Parameters:

backupRootDir - backup root directory

backupId - backup id

Returns:

logBackupDir: ".../user/biadmin/backup1/WALs/backup_1396650096738"

getLogBackupPath

public static Path getLogBackupPath(String backupRootDir,
                                    String backupId)

getManifest

public static BackupManifest getManifest(TableName tableName,
                                         Configuration conf,
                                         Path backupRootPath,
                                         String backupId)
                                  throws IOException

Throws:

IOException

checkImageManifestExist

public static void checkImageManifestExist(HashMap<TableName,BackupManifest> backupManifestMap,
                                           TableName[] tableArray,
                                           Configuration conf,
                                           Path backupRootPath,
                                           String backupId)
                                    throws IOException

Check whether the backup image path and there is manifest file in the path.

Parameters:

backupManifestMap - If all the manifests are found, then they are put into this map

tableArray - the tables involved

Throws:

IOException - exception