org.apache.hadoop.hbase.snapshot

类 SnapshotInfo

java.lang.Object

org.apache.hadoop.hbase.util.AbstractHBaseTool

org.apache.hadoop.hbase.snapshot.SnapshotInfo

所有已实现的接口:

org.apache.hadoop.conf.Configurable, org.apache.hadoop.util.Tool

@InterfaceAudience.Public
public final class SnapshotInfo
extends AbstractHBaseTool

Tool for dumping snapshot information.

1. Table Descriptor
2. Snapshot creation time, type, format version, ...
3. List of hfiles and wals
4. Stats about hfiles and logs sizes, percentage of shared with the source table, ...

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	SnapshotInfo.SnapshotStats Statistics about the snapshot How many store files and logs are in the archive How many store files and logs are shared with the table Total store files and logs size and shared amount

字段概要

从类继承的字段 org.apache.hadoop.hbase.util.AbstractHBaseTool

cmdLineArgs, conf, EXIT_FAILURE, EXIT_SUCCESS, LONG_HELP_OPTION, options, SHORT_HELP_OPTION

构造器概要

构造器

构造器和说明
SnapshotInfo()

方法概要

限定符和类型	方法和说明
protected void	addOptions()
int	doWork()
static List<SnapshotDescription>	getSnapshotList(org.apache.hadoop.conf.Configuration conf) Returns the list of available snapshots in the specified location
static Map<org.apache.hadoop.fs.Path,Integer>	getSnapshotsFilesMap(org.apache.hadoop.conf.Configuration conf, AtomicLong uniqueHFilesArchiveSize, AtomicLong uniqueHFilesSize, AtomicLong uniqueHFilesMobSize) Returns the map of store files based on path for all snapshots
static SnapshotInfo.SnapshotStats	getSnapshotStats(org.apache.hadoop.conf.Configuration conf, SnapshotDescription snapshot) Returns the snapshot stats
static SnapshotInfo.SnapshotStats	getSnapshotStats(org.apache.hadoop.conf.Configuration conf, org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotDescription snapshotDesc, Map<org.apache.hadoop.fs.Path,Integer> filesMap) Returns the snapshot stats
static void	main(String[] args)
protected void	printUsage()
protected void	processOptions(org.apache.hbase.thirdparty.org.apache.commons.cli.CommandLine cmd)

从类继承的方法 org.apache.hadoop.hbase.util.AbstractHBaseTool

addOption, addOptNoArg, addOptNoArg, addOptWithArg, addOptWithArg, addRequiredOption, addRequiredOptWithArg, addRequiredOptWithArg, doStaticMain, getConf, getOptionAsDouble, getOptionAsInt, getOptionAsLong, newParser, parseArgs, parseInt, parseLong, printUsage, processOldArgs, run, setConf

从类继承的方法 java.lang.Object

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

构造器详细资料

SnapshotInfo

public SnapshotInfo()

方法详细资料

doWork

public int doWork()
           throws IOException,
                  InterruptedException

指定者:

doWork 在类中 AbstractHBaseTool

抛出:

IOException

InterruptedException

addOptions

protected void addOptions()

指定者:

addOptions 在类中 AbstractHBaseTool

processOptions

protected void processOptions(org.apache.hbase.thirdparty.org.apache.commons.cli.CommandLine cmd)

指定者:

processOptions 在类中 AbstractHBaseTool

printUsage

protected void printUsage()

覆盖:

printUsage 在类中 AbstractHBaseTool

getSnapshotStats

public static SnapshotInfo.SnapshotStats getSnapshotStats(org.apache.hadoop.conf.Configuration conf,
                                                          SnapshotDescription snapshot)
                                                   throws IOException

Returns the snapshot stats

参数:

conf - the Configuration to use

snapshot - SnapshotDescription to get stats from

返回:

the snapshot stats

抛出:

IOException

getSnapshotStats

public static SnapshotInfo.SnapshotStats getSnapshotStats(org.apache.hadoop.conf.Configuration conf,
                                                          org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotDescription snapshotDesc,
                                                          Map<org.apache.hadoop.fs.Path,Integer> filesMap)
                                                   throws IOException

Returns the snapshot stats

参数:

conf - the Configuration to use

snapshotDesc - HBaseProtos.SnapshotDescription to get stats from

filesMap - Map store files map for all snapshots, it may be null

返回:

the snapshot stats

抛出:

IOException

getSnapshotList

public static List<SnapshotDescription> getSnapshotList(org.apache.hadoop.conf.Configuration conf)
                                                 throws IOException

Returns the list of available snapshots in the specified location

参数:

conf - the Configuration to use

返回:

the list of snapshots

抛出:

IOException

getSnapshotsFilesMap

public static Map<org.apache.hadoop.fs.Path,Integer> getSnapshotsFilesMap(org.apache.hadoop.conf.Configuration conf,
                                                                          AtomicLong uniqueHFilesArchiveSize,
                                                                          AtomicLong uniqueHFilesSize,
                                                                          AtomicLong uniqueHFilesMobSize)
                                                                   throws IOException

Returns the map of store files based on path for all snapshots

参数:

conf - the Configuration to use

uniqueHFilesArchiveSize - pass out the size for store files in archive

uniqueHFilesSize - pass out the size for store files shared

uniqueHFilesMobSize - pass out the size for mob store files shared

返回:

the map of store files

抛出:

IOException

main

public static void main(String[] args)