org.apache.hadoop.hbase.regionserver.compactions

类 StripeCompactionPolicy

java.lang.Object

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

org.apache.hadoop.hbase.regionserver.compactions.StripeCompactionPolicy

@InterfaceAudience.Private
public class StripeCompactionPolicy
extends CompactionPolicy

Stripe store implementation of compaction policy.

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	StripeCompactionPolicy.StripeCompactionRequest Stripe compaction request wrapper.
static interface	StripeCompactionPolicy.StripeInformationProvider The information about stripes that the policy needs to do its stuff

字段概要

从类继承的字段 org.apache.hadoop.hbase.regionserver.compactions.CompactionPolicy

comConf, storeConfigInfo

构造器概要

构造器

构造器和说明
StripeCompactionPolicy(org.apache.hadoop.conf.Configuration conf, StoreConfigInformation storeConfigInfo, StripeStoreConfig config)

方法概要

方法

限定符和类型	方法和说明
StripeCompactionPolicy.StripeCompactionRequest	createEmptyRequest(StripeCompactionPolicy.StripeInformationProvider si, CompactionRequest request)
static long	getTotalFileSize(Collection<StoreFile> candidates)
boolean	needsCompactions(StripeCompactionPolicy.StripeInformationProvider si, List<StoreFile> filesCompacting)
protected boolean	needsSingleStripeCompaction(StripeCompactionPolicy.StripeInformationProvider si)
List<StoreFile>	preSelectFilesForCoprocessor(StripeCompactionPolicy.StripeInformationProvider si, List<StoreFile> filesCompacting)
StripeCompactionPolicy.StripeCompactionRequest	selectCompaction(StripeCompactionPolicy.StripeInformationProvider si, List<StoreFile> filesCompacting, boolean isOffpeak)
StripeStoreFlusher.StripeFlushRequest	selectFlush(KeyValue.KVComparator comparator, StripeCompactionPolicy.StripeInformationProvider si, int kvCount)
protected StripeCompactionPolicy.StripeCompactionRequest	selectSingleStripeCompaction(StripeCompactionPolicy.StripeInformationProvider si, boolean includeL0, boolean canDropDeletesWithoutL0, boolean isOffpeak)
boolean	shouldPerformMajorCompaction(Collection<StoreFile> filesToCompact)
boolean	throttleCompaction(long compactionSize)

从类继承的方法 org.apache.hadoop.hbase.regionserver.compactions.CompactionPolicy

getConf, 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

StripeCompactionPolicy

public StripeCompactionPolicy(org.apache.hadoop.conf.Configuration conf,
                      StoreConfigInformation storeConfigInfo,
                      StripeStoreConfig config)

方法详细资料

preSelectFilesForCoprocessor

public List<StoreFile> preSelectFilesForCoprocessor(StripeCompactionPolicy.StripeInformationProvider si,
                                           List<StoreFile> filesCompacting)

createEmptyRequest

public StripeCompactionPolicy.StripeCompactionRequest createEmptyRequest(StripeCompactionPolicy.StripeInformationProvider si,
                                                                CompactionRequest request)

selectFlush

public StripeStoreFlusher.StripeFlushRequest selectFlush(KeyValue.KVComparator comparator,
                                                StripeCompactionPolicy.StripeInformationProvider si,
                                                int kvCount)

selectCompaction

public StripeCompactionPolicy.StripeCompactionRequest selectCompaction(StripeCompactionPolicy.StripeInformationProvider si,
                                                              List<StoreFile> filesCompacting,
                                                              boolean isOffpeak)
                                                                throws IOException

抛出:

IOException

needsCompactions

public boolean needsCompactions(StripeCompactionPolicy.StripeInformationProvider si,
                       List<StoreFile> filesCompacting)

shouldPerformMajorCompaction

public boolean shouldPerformMajorCompaction(Collection<StoreFile> filesToCompact)
                                     throws IOException

指定者:

shouldPerformMajorCompaction 在类中 CompactionPolicy

参数:

filesToCompact - Files to compact. Can be null.

返回:

True if we should run a major compaction.

抛出:

IOException

throttleCompaction

public boolean throttleCompaction(long compactionSize)

指定者:

throttleCompaction 在类中 CompactionPolicy

参数:

compactionSize - Total size of some compaction

返回:

whether this should be a large or small compaction

needsSingleStripeCompaction

protected boolean needsSingleStripeCompaction(StripeCompactionPolicy.StripeInformationProvider si)

参数:

si - StoreFileManager.

返回:

Whether any stripe potentially needs compaction.

selectSingleStripeCompaction

protected StripeCompactionPolicy.StripeCompactionRequest selectSingleStripeCompaction(StripeCompactionPolicy.StripeInformationProvider si,
                                                                          boolean includeL0,
                                                                          boolean canDropDeletesWithoutL0,
                                                                          boolean isOffpeak)
                                                                               throws IOException

抛出:

IOException

getTotalFileSize

public static long getTotalFileSize(Collection<StoreFile> candidates)