org.apache.hadoop.hbase.coprocessor

类 MetaTableMetrics

java.lang.Object

org.apache.hadoop.hbase.coprocessor.BaseRegionObserver

org.apache.hadoop.hbase.coprocessor.MetaTableMetrics

所有已实现的接口:

Coprocessor, RegionObserver

@InterfaceAudience.Private
public class MetaTableMetrics
extends BaseRegionObserver

A coprocessor that collects metrics from meta table.

These metrics will be available through the regular Hadoop metrics2 sinks (ganglia, opentsdb, etc) as well as JMX output.

另请参阅:

MetaTableMetrics

嵌套类概要

从接口继承的嵌套类/接口 org.apache.hadoop.hbase.coprocessor.RegionObserver

RegionObserver.MutationType

从接口继承的嵌套类/接口 org.apache.hadoop.hbase.Coprocessor

Coprocessor.State

字段概要

从接口继承的字段 org.apache.hadoop.hbase.Coprocessor

PRIORITY_HIGHEST, PRIORITY_LOWEST, PRIORITY_SYSTEM, PRIORITY_USER, VERSION

构造器概要

构造器

构造器和说明
MetaTableMetrics()

方法概要

方法

限定符和类型	方法和说明
void	preDelete(ObserverContext<RegionCoprocessorEnvironment> e, Delete delete, WALEdit edit, Durability durability) Called before the client deletes a value.
void	preGetOp(ObserverContext<RegionCoprocessorEnvironment> e, Get get, List<Cell> results) Called before the client performs a Get Call CoprocessorEnvironment#bypass to skip default actions Call CoprocessorEnvironment#complete to skip any subsequent chained coprocessors
void	prePut(ObserverContext<RegionCoprocessorEnvironment> e, Put put, WALEdit edit, Durability durability) Called before the client stores a value.
void	start(CoprocessorEnvironment env)
void	stop(CoprocessorEnvironment env)

从类继承的方法 org.apache.hadoop.hbase.coprocessor.BaseRegionObserver

postAppend, postBatchMutate, postBatchMutateIndispensably, postBulkLoadHFile, postCheckAndDelete, postCheckAndPut, postClose, postCloseRegionOperation, postCommitStoreFile, postCompact, postCompact, postCompactSelection, postCompactSelection, postCompleteSplit, postDelete, postExists, postFlush, postFlush, postGetClosestRowBefore, postGetOp, postIncrement, postIncrementColumnValue, postInstantiateDeleteTracker, postLogReplay, postMutationBeforeWAL, postOpen, postPut, postRollBackSplit, postScannerClose, postScannerFilterRow, postScannerNext, postScannerOpen, postSplit, postStartRegionOperation, postStoreFileReaderOpen, postWALRestore, postWALRestore, preAppend, preAppendAfterRowLock, preBatchMutate, preBulkLoadHFile, preCheckAndDelete, preCheckAndDeleteAfterRowLock, preCheckAndPut, preCheckAndPutAfterRowLock, preClose, preCommitStoreFile, preCompact, preCompact, preCompactScannerOpen, preCompactScannerOpen, preCompactScannerOpen, preCompactSelection, preCompactSelection, preExists, preFlush, preFlush, preFlushScannerOpen, preFlushScannerOpen, preGetClosestRowBefore, preIncrement, preIncrementAfterRowLock, preIncrementColumnValue, preOpen, prePrepareTimeStampForDeleteVersion, preRollBackSplit, preScannerClose, preScannerNext, preScannerOpen, preSplit, preSplit, preSplitAfterPONR, preSplitBeforePONR, preStoreFileReaderOpen, preStoreScannerOpen, preWALRestore, preWALRestore

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

MetaTableMetrics

public MetaTableMetrics()

方法详细资料

preGetOp

public void preGetOp(ObserverContext<RegionCoprocessorEnvironment> e,
            Get get,
            List<Cell> results)
              throws IOException

从接口复制的说明: RegionObserver

Called before the client performs a Get

Call CoprocessorEnvironment#bypass to skip default actions

Call CoprocessorEnvironment#complete to skip any subsequent chained coprocessors

指定者:

preGetOp 在接口中 RegionObserver

覆盖:

preGetOp 在类中 BaseRegionObserver

参数:

e - the environment provided by the region server

get - the Get request

results - The result to return to the client if default processing is bypassed. Can be modified. Will not be used if default processing is not bypassed.

抛出:

IOException - if an error occurred on the coprocessor

prePut

public void prePut(ObserverContext<RegionCoprocessorEnvironment> e,
          Put put,
          WALEdit edit,
          Durability durability)
            throws IOException

从接口复制的说明: RegionObserver

Called before the client stores a value.

Call CoprocessorEnvironment#bypass to skip default actions

Call CoprocessorEnvironment#complete to skip any subsequent chained coprocessors

指定者:

prePut 在接口中 RegionObserver

覆盖:

prePut 在类中 BaseRegionObserver

参数:

e - the environment provided by the region server

put - The Put object

edit - The WALEdit object that will be written to the wal

durability - Persistence guarantee for this Put

抛出:

IOException - if an error occurred on the coprocessor

preDelete

public void preDelete(ObserverContext<RegionCoprocessorEnvironment> e,
             Delete delete,
             WALEdit edit,
             Durability durability)
               throws IOException

从接口复制的说明: RegionObserver

Called before the client deletes a value.

Call CoprocessorEnvironment#bypass to skip default actions

Call CoprocessorEnvironment#complete to skip any subsequent chained coprocessors

指定者:

preDelete 在接口中 RegionObserver

覆盖:

preDelete 在类中 BaseRegionObserver

参数:

e - the environment provided by the region server

delete - The Delete object

edit - The WALEdit object for the wal

durability - Persistence guarantee for this Delete

抛出:

IOException - if an error occurred on the coprocessor

start

public void start(CoprocessorEnvironment env)
           throws IOException

指定者:

start 在接口中 Coprocessor

覆盖:

start 在类中 BaseRegionObserver

抛出:

IOException

stop

public void stop(CoprocessorEnvironment env)
          throws IOException

指定者:

stop 在接口中 Coprocessor

覆盖:

stop 在类中 BaseRegionObserver

抛出:

IOException