Package org.apache.hadoop.hdfs.server.namenode

Interface SecondaryNameNodeInfoMXBean

All Superinterfaces:
VersionInfoMXBean
All Known Implementing Classes:
SecondaryNameNode
@Private @Evolving public interface SecondaryNameNodeInfoMXBean extends VersionInfoMXBean
JMX information of the secondary NameNode

  • Method Details

    • getHostAndPort

      String getHostAndPort()
      Gets the host and port colon separated.

    • isSecurityEnabled

      boolean isSecurityEnabled()
      Gets if security is enabled.
      Returns:
      true, if security is enabled.

    • getStartTime

      long getStartTime()
      Returns:
      the timestamp of when the SNN starts

    • getLastCheckpointTime

      long getLastCheckpointTime()
      Returns:
      the timestamp of the last checkpoint

    • getLastCheckpointDeltaMs

      long getLastCheckpointDeltaMs()
      Returns:
      the number of msec since the last checkpoint, or -1 if no checkpoint has been done yet.

    • getCheckpointDirectories

      String[] getCheckpointDirectories()
      Returns:
      the directories that store the checkpoint images

    • getCheckpointEditlogDirectories

      String[] getCheckpointEditlogDirectories()
      Returns:
      the directories that store the edit logs