org.apache.hadoop.hbase.regionserver

类 CompactSplitThread

java.lang.Object

org.apache.hadoop.hbase.regionserver.CompactSplitThread

所有已实现的接口:

ConfigurationObserver, PropagatingConfigurationObserver, CompactionRequestor

@InterfaceAudience.Private
public class CompactSplitThread
extends Object
implements CompactionRequestor, PropagatingConfigurationObserver

Compact region on request and then run split if appropriate

字段概要

字段

限定符和类型	字段和说明
static int	DEFAULT_REGION_SERVER_REGION_SPLIT_LIMIT
static String	LARGE_COMPACTION_THREADS
static int	LARGE_COMPACTION_THREADS_DEFAULT
static String	MERGE_THREADS
static int	MERGE_THREADS_DEFAULT
static String	REGION_SERVER_REGION_SPLIT_LIMIT
static String	SMALL_COMPACTION_THREADS
static int	SMALL_COMPACTION_THREADS_DEFAULT
static String	SPLIT_THREADS
static int	SPLIT_THREADS_DEFAULT

方法概要

方法

限定符和类型	方法和说明
void	deregisterChildren(ConfigurationManager manager) Needs to be called to deregister the children from the manager.
String	dumpQueue()
int	getCompactionQueueSize() Returns the current size of the queue containing regions that are processed.
ThroughputController	getCompactionThroughputController()
int	getLargeCompactionQueueSize()
protected int	getLargeCompactionThreadNum()
protected int	getMergeThreadNum()
int	getRegionSplitLimit()
int	getSmallCompactionQueueSize()
protected int	getSmallCompactionThreadNum()
int	getSplitQueueSize()
protected int	getSplitThreadNum()
void	onConfigurationChange(org.apache.hadoop.conf.Configuration newConf) This method would be called by the ConfigurationManager object when the Configuration object is reloaded from disk.
void	registerChildren(ConfigurationManager manager) Needs to be called to register the children to the manager.
CompactionRequest	requestCompaction(Region r, Store s, String why, CompactionRequest request)
CompactionRequest	requestCompaction(Region r, Store s, String why, int priority, CompactionRequest request, User user)
List<CompactionRequest>	requestCompaction(Region r, String why)
List<CompactionRequest>	requestCompaction(Region r, String why, int p, List<Pair<CompactionRequest,Store>> requests, User user)
List<CompactionRequest>	requestCompaction(Region r, String why, List<Pair<CompactionRequest,Store>> requests)
void	requestRegionsMerge(Region a, Region b, boolean forcible, long masterSystemTime, User user)
boolean	requestSplit(Region r)
void	requestSplit(Region r, byte[] midKey)
void	requestSplit(Region r, byte[] midKey, User user)
void	requestSystemCompaction(Region r, Store s, String why)
void	requestSystemCompaction(Region r, String why)
String	toString()

从类继承的方法 java.lang.Object

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

字段详细资料

LARGE_COMPACTION_THREADS

public static final String LARGE_COMPACTION_THREADS

另请参阅:

常量字段值

LARGE_COMPACTION_THREADS_DEFAULT

public static final int LARGE_COMPACTION_THREADS_DEFAULT

另请参阅:

常量字段值

SMALL_COMPACTION_THREADS

public static final String SMALL_COMPACTION_THREADS

另请参阅:

常量字段值

SMALL_COMPACTION_THREADS_DEFAULT

public static final int SMALL_COMPACTION_THREADS_DEFAULT

另请参阅:

常量字段值

SPLIT_THREADS

public static final String SPLIT_THREADS

另请参阅:

常量字段值

SPLIT_THREADS_DEFAULT

public static final int SPLIT_THREADS_DEFAULT

另请参阅:

常量字段值

MERGE_THREADS

public static final String MERGE_THREADS

另请参阅:

常量字段值

MERGE_THREADS_DEFAULT

public static final int MERGE_THREADS_DEFAULT

另请参阅:

常量字段值

REGION_SERVER_REGION_SPLIT_LIMIT

public static final String REGION_SERVER_REGION_SPLIT_LIMIT

另请参阅:

常量字段值

DEFAULT_REGION_SERVER_REGION_SPLIT_LIMIT

public static final int DEFAULT_REGION_SERVER_REGION_SPLIT_LIMIT

另请参阅:

常量字段值

方法详细资料

toString

public String toString()

覆盖:

toString 在类中 Object

dumpQueue

public String dumpQueue()

requestRegionsMerge

public void requestRegionsMerge(Region a,
                       Region b,
                       boolean forcible,
                       long masterSystemTime,
                       User user)

requestSplit

public boolean requestSplit(Region r)

requestSplit

public void requestSplit(Region r,
                byte[] midKey)

requestSplit

public void requestSplit(Region r,
                byte[] midKey,
                User user)

requestCompaction

public List<CompactionRequest> requestCompaction(Region r,
                                        String why)
                                          throws IOException

指定者:

requestCompaction 在接口中 CompactionRequestor

参数:

r - Region to compact

why - Why compaction was requested -- used in debug messages

返回:

The created CompactionRequests or an empty list if no compactions were started

抛出:

IOException

requestCompaction

public List<CompactionRequest> requestCompaction(Region r,
                                        String why,
                                        List<Pair<CompactionRequest,Store>> requests)
                                          throws IOException

指定者:

requestCompaction 在接口中 CompactionRequestor

参数:

r - Region to compact

why - Why compaction was requested -- used in debug messages

requests - custom compaction requests. Each compaction must specify the store on which it is acting. Can be null in which case a compaction will be attempted on all stores for the region.

返回:

The created CompactionRequests or an empty list if no compactions were started

抛出:

IOException

requestCompaction

public CompactionRequest requestCompaction(Region r,
                                  Store s,
                                  String why,
                                  CompactionRequest request)
                                    throws IOException

指定者:

requestCompaction 在接口中 CompactionRequestor

参数:

r - Region to compact

s - Store within region to compact

why - Why compaction was requested -- used in debug messages

request - custom compaction request for the Region and Store. Custom request must be null or be constructed with matching region and store.

返回:

The created CompactionRequest or null if no compaction was started.

抛出:

IOException

requestCompaction

public List<CompactionRequest> requestCompaction(Region r,
                                        String why,
                                        int p,
                                        List<Pair<CompactionRequest,Store>> requests,
                                        User user)
                                          throws IOException

指定者:

requestCompaction 在接口中 CompactionRequestor

参数:

r - Region to compact

why - Why compaction was requested -- used in debug messages

p - Priority of this compaction. minHeap. <=0 is critical

requests - custom compaction requests. Each compaction must specify the store on which it is acting. Can be null in which case a compaction will be attempted on all stores for the region.

user - the effective user

返回:

The created CompactionRequests or an empty list if no compactions were started.

抛出:

IOException

requestCompaction

public CompactionRequest requestCompaction(Region r,
                                  Store s,
                                  String why,
                                  int priority,
                                  CompactionRequest request,
                                  User user)
                                    throws IOException

指定者:

requestCompaction 在接口中 CompactionRequestor

参数:

r - Region to compact

s - Store within region to compact

why - Why compaction was requested -- used in debug messages

priority - Priority of this compaction. minHeap. <=0 is critical

request - custom compaction request to run. Store and Region for the request must match the region and store specified here.

返回:

The created CompactionRequest or null if no compaction was started

抛出:

IOException

requestSystemCompaction

public void requestSystemCompaction(Region r,
                           String why)
                             throws IOException

抛出:

IOException

requestSystemCompaction

public void requestSystemCompaction(Region r,
                           Store s,
                           String why)
                             throws IOException

抛出:

IOException

getCompactionQueueSize

public int getCompactionQueueSize()

Returns the current size of the queue containing regions that are processed.

返回:

The current size of the regions queue.

getLargeCompactionQueueSize

public int getLargeCompactionQueueSize()

getSmallCompactionQueueSize

public int getSmallCompactionQueueSize()

getSplitQueueSize

public int getSplitQueueSize()

getRegionSplitLimit

public int getRegionSplitLimit()

返回:

the regionSplitLimit

onConfigurationChange

public void onConfigurationChange(org.apache.hadoop.conf.Configuration newConf)

This method would be called by the ConfigurationManager object when the Configuration object is reloaded from disk.

指定者:

onConfigurationChange 在接口中 ConfigurationObserver

getSmallCompactionThreadNum

protected int getSmallCompactionThreadNum()

getLargeCompactionThreadNum

protected int getLargeCompactionThreadNum()

getSplitThreadNum

protected int getSplitThreadNum()

getMergeThreadNum

protected int getMergeThreadNum()

registerChildren

public void registerChildren(ConfigurationManager manager)

Needs to be called to register the children to the manager.

指定者:

registerChildren 在接口中 PropagatingConfigurationObserver

参数:

manager - : to register to

deregisterChildren

public void deregisterChildren(ConfigurationManager manager)

Needs to be called to deregister the children from the manager.

指定者:

deregisterChildren 在接口中 PropagatingConfigurationObserver

参数:

manager - : to deregister from

getCompactionThroughputController

public ThroughputController getCompactionThroughputController()