org.apache.hadoop.hbase.regionserver.compactions

Class CompactionProgress

java.lang.Object

org.apache.hadoop.hbase.regionserver.compactions.CompactionProgress

@InterfaceAudience.Private
public class CompactionProgress
extends Object

This class holds information relevant for tracking the progress of a compaction.

The metrics tracked allow one to calculate the percent completion of the compaction based on the number of Key/Value pairs already compacted vs. total amount scheduled to be compacted.

Field Summary

Fields

Modifier and Type	Field and Description
long	currentCompactedKVs the completed count of key values in currently running compaction
private static org.slf4j.Logger	LOG
long	totalCompactedSize the total size of data processed by the currently running compaction, in bytes
private long	totalCompactingKVs the total compacting key values in currently running compaction

Constructor Summary

Constructors

Constructor and Description
CompactionProgress(long totalCompactingKVs) Constructor

Method Summary

Modifier and Type	Method and Description
void	cancel() Cancels the compaction progress, setting things to 0.
void	complete() Marks the compaction as complete by setting total to current KV count; Total KV count is an estimate, so there might be a discrepancy otherwise.
long	getCurrentCompactedKvs()
float	getProgressPct() getter for calculated percent complete
long	getTotalCompactedSize()
long	getTotalCompactingKVs()
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

LOG

private static final org.slf4j.Logger LOG

totalCompactingKVs

private long totalCompactingKVs

the total compacting key values in currently running compaction

currentCompactedKVs

public long currentCompactedKVs

the completed count of key values in currently running compaction

totalCompactedSize

public long totalCompactedSize

the total size of data processed by the currently running compaction, in bytes

Constructor Detail

CompactionProgress

public CompactionProgress(long totalCompactingKVs)

Constructor

Parameters:

totalCompactingKVs - the total Key/Value pairs to be compacted

Method Detail

getProgressPct

public float getProgressPct()

getter for calculated percent complete

Returns:

float

cancel

public void cancel()

Cancels the compaction progress, setting things to 0.

complete

public void complete()

Marks the compaction as complete by setting total to current KV count; Total KV count is an estimate, so there might be a discrepancy otherwise.

getTotalCompactingKVs

public long getTotalCompactingKVs()

Returns:

the total compacting key values in currently running compaction

getCurrentCompactedKvs

public long getCurrentCompactedKvs()

Returns:

the completed count of key values in currently running compaction

getTotalCompactedSize

public long getTotalCompactedSize()

Returns:

the total data size processed by the currently running compaction, in bytes

toString

public String toString()

Overrides:

toString in class Object