org.apache.hadoop.hbase.coprocessor.example

类 ExampleMasterObserverWithMetrics

java.lang.Object

org.apache.hadoop.hbase.coprocessor.example.ExampleMasterObserverWithMetrics

所有已实现的接口:

Coprocessor, MasterCoprocessor, MasterObserver

@InterfaceAudience.Private
public class ExampleMasterObserverWithMetrics
extends Object
implements MasterCoprocessor, MasterObserver

An example coprocessor that collects some metrics to demonstrate the usage of exporting custom metrics from the coprocessor.

These metrics will be available through the regular Hadoop metrics2 sinks (ganglia, opentsdb, etc) as well as JMX output. You can view a snapshot of the metrics by going to the http web UI of the master page, something like http://mymasterhost:16010/jmx

另请参阅:

ExampleRegionObserverWithMetrics

嵌套类概要

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
ExampleMasterObserverWithMetrics()

方法概要

限定符和类型	方法和说明
Optional<MasterObserver>	getMasterObserver()
void	postCreateTable(ObserverContext<MasterCoprocessorEnvironment> ctx, TableDescriptor desc, RegionInfo[] regions)
void	preCreateTable(ObserverContext<MasterCoprocessorEnvironment> ctx, TableDescriptor desc, RegionInfo[] regions)
void	preDisableTable(ObserverContext<MasterCoprocessorEnvironment> ctx, TableName tableName)
void	start(CoprocessorEnvironment env)

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.hadoop.hbase.Coprocessor

getServices, stop

从接口继承的方法 org.apache.hadoop.hbase.coprocessor.MasterObserver

postAbortProcedure, postAddReplicationPeer, postAddRSGroup, postAssign, postBalance, postBalanceRSGroup, postBalanceSwitch, postClearDeadServers, postCloneSnapshot, postCompletedCreateTableAction, postCompletedDeleteTableAction, postCompletedDisableTableAction, postCompletedEnableTableAction, postCompletedMergeRegionsAction, postCompletedModifyTableAction, postCompletedSplitRegionAction, postCompletedTruncateTableAction, postCreateNamespace, postDecommissionRegionServers, postDeleteNamespace, postDeleteSnapshot, postDeleteTable, postDisableReplicationPeer, postDisableTable, postEnableReplicationPeer, postEnableTable, postGetClusterMetrics, postGetLocks, postGetNamespaceDescriptor, postGetProcedures, postGetReplicationPeerConfig, postGetTableDescriptors, postGetTableNames, postListDecommissionedRegionServers, postListNamespaceDescriptors, postListReplicationPeers, postListSnapshot, postLockHeartbeat, postMergeRegions, postMergeRegionsCommitAction, postModifyNamespace, postModifyTable, postMove, postMoveServers, postMoveServersAndTables, postMoveTables, postRecommissionRegionServer, postRegionOffline, postRemoveReplicationPeer, postRemoveRSGroup, postRemoveServers, postRequestLock, postRestoreSnapshot, postRollBackMergeRegionsAction, postRollBackSplitRegionAction, postSetNamespaceQuota, postSetSplitOrMergeEnabled, postSetTableQuota, postSetUserQuota, postSetUserQuota, postSetUserQuota, postSnapshot, postStartMaster, postTableFlush, postTruncateTable, postUnassign, postUpdateReplicationPeerConfig, preAbortProcedure, preAddReplicationPeer, preAddRSGroup, preAssign, preBalance, preBalanceRSGroup, preBalanceSwitch, preClearDeadServers, preCloneSnapshot, preCreateNamespace, preCreateTableAction, preDecommissionRegionServers, preDeleteNamespace, preDeleteSnapshot, preDeleteTable, preDeleteTableAction, preDisableReplicationPeer, preDisableTableAction, preEnableReplicationPeer, preEnableTable, preEnableTableAction, preGetClusterMetrics, preGetLocks, preGetNamespaceDescriptor, preGetProcedures, preGetReplicationPeerConfig, preGetTableDescriptors, preGetTableNames, preListDecommissionedRegionServers, preListNamespaceDescriptors, preListReplicationPeers, preListSnapshot, preLockHeartbeat, preMasterInitialization, preMergeRegions, preMergeRegionsAction, preMergeRegionsCommitAction, preModifyNamespace, preModifyTable, preModifyTableAction, preMove, preMoveServers, preMoveServersAndTables, preMoveTables, preRecommissionRegionServer, preRegionOffline, preRemoveReplicationPeer, preRemoveRSGroup, preRemoveServers, preRequestLock, preRestoreSnapshot, preSetNamespaceQuota, preSetSplitOrMergeEnabled, preSetTableQuota, preSetUserQuota, preSetUserQuota, preSetUserQuota, preShutdown, preSnapshot, preSplitRegion, preSplitRegionAction, preSplitRegionAfterMETAAction, preSplitRegionBeforeMETAAction, preStopMaster, preTableFlush, preTruncateTable, preTruncateTableAction, preUnassign, preUpdateReplicationPeerConfig

构造器详细资料

ExampleMasterObserverWithMetrics

public ExampleMasterObserverWithMetrics()

方法详细资料

getMasterObserver

public Optional<MasterObserver> getMasterObserver()

指定者:

getMasterObserver 在接口中 MasterCoprocessor

preCreateTable

public void preCreateTable(ObserverContext<MasterCoprocessorEnvironment> ctx,
                           TableDescriptor desc,
                           RegionInfo[] regions)
                    throws IOException

指定者:

preCreateTable 在接口中 MasterObserver

抛出:

IOException

postCreateTable

public void postCreateTable(ObserverContext<MasterCoprocessorEnvironment> ctx,
                            TableDescriptor desc,
                            RegionInfo[] regions)
                     throws IOException

指定者:

postCreateTable 在接口中 MasterObserver

抛出:

IOException

preDisableTable

public void preDisableTable(ObserverContext<MasterCoprocessorEnvironment> ctx,
                            TableName tableName)
                     throws IOException

指定者:

preDisableTable 在接口中 MasterObserver

抛出:

IOException

start

public void start(CoprocessorEnvironment env)
           throws IOException

指定者:

start 在接口中 Coprocessor

抛出:

IOException