org.apache.hadoop.hdfs.server.datanode

インタフェース DataNodeMXBean

@InterfaceAudience.Public
 @InterfaceStability.Stable
public interface DataNodeMXBean

This is the JMX management interface for data node information

メソッドのサマリー

修飾子とタイプ	メソッドと説明
String	getBPServiceActorInfo() Gets information of the block pool service actors.
String	getClusterId() Gets the cluster id.
Map<String,Map<String,Long>>	getDatanodeNetworkCounts() Gets the network error counts on a per-Datanode basis.
String	getDataPort() Gets the data port.
String	getDiskBalancerStatus() Gets the diskBalancer Status.
String	getHttpPort() Gets the http port.
String	getNamenodeAddresses() Gets the namenode IP addresses.
String	getRpcPort() Gets the rpc port.
String	getSoftwareVersion() Get the version of software running on the DataNode
String	getVersion() Gets the version of Hadoop.
String	getVolumeInfo() Gets the information of each volume on the Datanode.
int	getXceiverCount() Returns an estimate of the number of Datanode threads actively transferring blocks.

メソッドの詳細

getVersion

String getVersion()

Gets the version of Hadoop.

戻り値:

the version of Hadoop

getSoftwareVersion

String getSoftwareVersion()

Get the version of software running on the DataNode

戻り値:

a string representing the version

getRpcPort

String getRpcPort()

Gets the rpc port.

戻り値:

the rpc port

getHttpPort

String getHttpPort()

Gets the http port.

戻り値:

the http port

getDataPort

String getDataPort()

Gets the data port.

戻り値:

the data port

getNamenodeAddresses

String getNamenodeAddresses()

Gets the namenode IP addresses.

戻り値:

the namenode IP addresses that the datanode is talking to

getBPServiceActorInfo

String getBPServiceActorInfo()

Gets information of the block pool service actors.

戻り値:

block pool service actors info

getVolumeInfo

String getVolumeInfo()

Gets the information of each volume on the Datanode. Please see the implementation for the format of returned information.

戻り値:

the volume info

getClusterId

String getClusterId()

Gets the cluster id.

戻り値:

the cluster id

getXceiverCount

int getXceiverCount()

Returns an estimate of the number of Datanode threads actively transferring blocks.

getDatanodeNetworkCounts

Map<String,Map<String,Long>> getDatanodeNetworkCounts()

Gets the network error counts on a per-Datanode basis.

getDiskBalancerStatus

String getDiskBalancerStatus()

Gets the diskBalancer Status. Please see implementation for the format of the returned information.

戻り値:

DiskBalancer Status