org.apache.hadoop.hbase.ipc

类 MasterFifoRpcScheduler

java.lang.Object

org.apache.hadoop.hbase.ipc.RpcScheduler

org.apache.hadoop.hbase.ipc.FifoRpcScheduler

org.apache.hadoop.hbase.ipc.MasterFifoRpcScheduler

@InterfaceAudience.Private
 @InterfaceStability.Evolving
public class MasterFifoRpcScheduler
extends FifoRpcScheduler

A special RpcScheduler} only used for master. This scheduler separates RegionServerReport requests to independent handlers to avoid these requests block other requests. To use this scheduler, please set "hbase.master.rpc.scheduler.factory.class" to "org.apache.hadoop.hbase.ipc.MasterFifoRpcScheduler".

嵌套类概要

从类继承的嵌套类/接口 org.apache.hadoop.hbase.ipc.RpcScheduler

RpcScheduler.Context

字段概要

字段

限定符和类型	字段和说明
static String	MASTER_SERVER_REPORT_HANDLER_COUNT Set RSReport requests handlers count when masters use MasterFifoRpcScheduler.

从类继承的字段 org.apache.hadoop.hbase.ipc.FifoRpcScheduler

executor, handlerCount, maxQueueLength, queueSize

从类继承的字段 org.apache.hadoop.hbase.ipc.RpcScheduler

IPC_SERVER_MAX_CALLQUEUE_LENGTH, IPC_SERVER_PRIORITY_MAX_CALLQUEUE_LENGTH

构造器概要

构造器

构造器和说明
MasterFifoRpcScheduler(org.apache.hadoop.conf.Configuration conf, int callHandlerCount, int rsReportHandlerCount)

方法概要

限定符和类型	方法和说明
boolean	dispatch(CallRunner task) Dispatches an RPC request asynchronously.
int	getActiveRpcHandlerCount() Retrieves the number of active handler.
CallQueueInfo	getCallQueueInfo() Get call queue information
int	getGeneralQueueLength() Retrieves length of the general queue for metrics.
void	start() Prepares for request serving.
void	stop() Stops serving new requests.

从类继承的方法 org.apache.hadoop.hbase.ipc.FifoRpcScheduler

executeRpcCall, getActiveReadRpcHandlerCount, getActiveScanRpcHandlerCount, getActiveWriteRpcHandlerCount, getCallMethod, getMetaPriorityQueueLength, getNumGeneralCallsDropped, getNumLifoModeSwitches, getPriorityQueueLength, getReadQueueLength, getReplicationQueueLength, getScanQueueLength, getWriteQueueLength, init, updateMethodCountAndSizeByQueue

从类继承的方法 java.lang.Object

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

字段详细资料

MASTER_SERVER_REPORT_HANDLER_COUNT

public static final String MASTER_SERVER_REPORT_HANDLER_COUNT

Set RSReport requests handlers count when masters use MasterFifoRpcScheduler. The default value is half of "hbase.regionserver.handler.count" value, but at least 1. The other handlers count is "hbase.regionserver.handler.count" value minus RSReport handlers count, but at least 1 too.

另请参阅:

常量字段值

构造器详细资料

MasterFifoRpcScheduler

public MasterFifoRpcScheduler(org.apache.hadoop.conf.Configuration conf,
                              int callHandlerCount,
                              int rsReportHandlerCount)

方法详细资料

start

public void start()

从类复制的说明: RpcScheduler

Prepares for request serving. An implementation may start some handler threads here.

覆盖:

start 在类中 FifoRpcScheduler

stop

public void stop()

从类复制的说明: RpcScheduler

Stops serving new requests.

覆盖:

stop 在类中 FifoRpcScheduler

dispatch

public boolean dispatch(CallRunner task)
                 throws IOException,
                        InterruptedException

从类复制的说明: RpcScheduler

Dispatches an RPC request asynchronously. An implementation is free to choose to process the request immediately or delay it for later processing.

覆盖:

dispatch 在类中 FifoRpcScheduler

参数:

task - the request to be dispatched

抛出:

IOException

InterruptedException

getGeneralQueueLength

public int getGeneralQueueLength()

从类复制的说明: RpcScheduler

Retrieves length of the general queue for metrics.

覆盖:

getGeneralQueueLength 在类中 FifoRpcScheduler

getActiveRpcHandlerCount

public int getActiveRpcHandlerCount()

从类复制的说明: RpcScheduler

Retrieves the number of active handler.

覆盖:

getActiveRpcHandlerCount 在类中 FifoRpcScheduler

getCallQueueInfo

public CallQueueInfo getCallQueueInfo()

从类复制的说明: RpcScheduler

Get call queue information

覆盖:

getCallQueueInfo 在类中 FifoRpcScheduler