org.apache.hadoop.hbase.regionserver.compactions

Class ExploringCompactionPolicy

java.lang.Object

org.apache.hadoop.hbase.regionserver.compactions.CompactionPolicy

org.apache.hadoop.hbase.regionserver.compactions.RatioBasedCompactionPolicy

org.apache.hadoop.hbase.regionserver.compactions.ExploringCompactionPolicy

Direct Known Subclasses:

FIFOCompactionPolicy

@InterfaceAudience.Private
public class ExploringCompactionPolicy
extends RatioBasedCompactionPolicy

Class to pick which files if any to compact together. This class will search all possibilities for different and if it gets stuck it will choose the smallest set of files to compact.

Field Summary

Fields inherited from class org.apache.hadoop.hbase.regionserver.compactions.CompactionPolicy

comConf, storeConfigInfo

Constructor Summary

Constructors

Constructor and Description
ExploringCompactionPolicy(Configuration conf, StoreConfigInformation storeConfigInfo) Constructor for ExploringCompactionPolicy.

Method Summary

Modifier and Type	Method and Description
List<StoreFile>	applyCompactionPolicy(List<StoreFile> candidates, boolean mightBeStuck, boolean mayUseOffPeak, int minFiles, int maxFiles)

Methods inherited from class org.apache.hadoop.hbase.regionserver.compactions.RatioBasedCompactionPolicy

getNextMajorCompactTime, isMajorCompaction, needsCompaction, preSelectCompactionForCoprocessor, selectCompaction, throttleCompaction

Methods inherited from class org.apache.hadoop.hbase.regionserver.compactions.CompactionPolicy

getConf, setConf

Methods inherited from class java.lang.Object

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

Constructor Detail

ExploringCompactionPolicy

public ExploringCompactionPolicy(Configuration conf,
                                 StoreConfigInformation storeConfigInfo)

Constructor for ExploringCompactionPolicy.

Parameters:

conf - The configuration object

storeConfigInfo - An object to provide info about the store.

Method Detail

applyCompactionPolicy

public List<StoreFile> applyCompactionPolicy(List<StoreFile> candidates,
                                             boolean mightBeStuck,
                                             boolean mayUseOffPeak,
                                             int minFiles,
                                             int maxFiles)