org.apache.hadoop.hdfs.server.namenode

インタフェース NameNodeStatusMXBean

@InterfaceAudience.Public
 @InterfaceStability.Evolving
public interface NameNodeStatusMXBean

This is the JMX management interface for NameNode status information

メソッドのサマリー

修飾子とタイプ	メソッドと説明
long	getBytesWithFutureGenerationStamps() Gets number of bytes in blocks with future generation stamps.
String	getHostAndPort() Gets the host and port colon separated.
long	getLastHATransitionTime() Gets the most recent HA transition time in milliseconds from the epoch.
String	getNNRole() Gets the NameNode role.
String	getState() Gets the NameNode state.
boolean	isSecurityEnabled() Gets if security is enabled.

メソッドの詳細

getNNRole

String getNNRole()

Gets the NameNode role.

戻り値:

the NameNode role.

getState

String getState()

Gets the NameNode state.

戻り値:

the NameNode state.

getHostAndPort

String getHostAndPort()

Gets the host and port colon separated.

戻り値:

host and port colon separated.

isSecurityEnabled

boolean isSecurityEnabled()

Gets if security is enabled.

戻り値:

true, if security is enabled.

getLastHATransitionTime

long getLastHATransitionTime()

Gets the most recent HA transition time in milliseconds from the epoch.

戻り値:

the most recent HA transition time in milliseconds from the epoch.

getBytesWithFutureGenerationStamps

long getBytesWithFutureGenerationStamps()

Gets number of bytes in blocks with future generation stamps.

戻り値:

number of bytes that can be deleted if exited from safe mode.