org.apache.hadoop.hbase.snapshot

Class SnapshotInfo

java.lang.Object

Configured

org.apache.hadoop.hbase.snapshot.SnapshotInfo

@InterfaceAudience.Public
 @InterfaceStability.Evolving
public final class SnapshotInfo
extends Configured

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, ...

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
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

Constructor Summary

Constructors

Constructor and Description
SnapshotInfo()

Method Summary

Modifier and Type	Method and Description
static List<HBaseProtos.SnapshotDescription>	getSnapshotList(Configuration conf) Returns the list of available snapshots in the specified location
static SnapshotInfo.SnapshotStats	getSnapshotStats(Configuration conf, HBaseProtos.SnapshotDescription snapshot) Returns the snapshot stats
static void	main(String[] args)
int	run(String[] args)

Methods inherited from class java.lang.Object

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

Constructor Detail

SnapshotInfo

public SnapshotInfo()

Method Detail

run

public int run(String[] args)
        throws IOException,
               InterruptedException

Throws:

IOException

InterruptedException

getSnapshotStats

public static SnapshotInfo.SnapshotStats getSnapshotStats(Configuration conf,
                                                          HBaseProtos.SnapshotDescription snapshot)
                                                   throws IOException

Returns the snapshot stats

Parameters:

conf - the Configuration to use

snapshot - HBaseProtos.SnapshotDescription to get stats from

Returns:

the snapshot stats

Throws:

IOException

getSnapshotList

public static List<HBaseProtos.SnapshotDescription> getSnapshotList(Configuration conf)
                                                             throws IOException

Returns the list of available snapshots in the specified location

Parameters:

conf - the Configuration to use

Returns:

the list of snapshots

Throws:

IOException

main

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

Throws:

Exception