Package org.apache.hadoop.hbase.master

Interface MetricsMasterWrapper

All Known Implementing Classes:
MetricsMasterWrapperImpl
@Private public interface MetricsMasterWrapper
This is the interface that will expose information to hadoop1/hadoop2 implementations of the MetricsMasterSource.

  • Method Details

    • isRunning

      boolean isRunning()
      Returns if the master is currently running and is not attempting to shutdown.

    • getServerName

      String getServerName()
      Get ServerName

    • getAverageLoad

      double getAverageLoad()
      Get Average Load
      Returns:
      Average Load

    • getClusterId

      String getClusterId()
      Get the Cluster ID
      Returns:
      Cluster ID

    • getZookeeperQuorum

      String getZookeeperQuorum()
      Get the ZooKeeper Quorum Info
      Returns:
      ZooKeeper Quorum Info

    • getCoprocessors

      String[] getCoprocessors()
      Get the co-processors
      Returns:
      Co-processors

    • getStartTime

      long getStartTime()
      Get hbase master start time
      Returns:
      Start time of master in milliseconds

    • getActiveTime

      long getActiveTime()
      Get the hbase master active time
      Returns:
      Time in milliseconds when master became active

    • getIsActiveMaster

      boolean getIsActiveMaster()
      Whether this master is the active master
      Returns:
      True if this is the active master

    • getRegionServers

      String getRegionServers()
      Get the live region servers
      Returns:
      Live region servers

    • getNumRegionServers

      int getNumRegionServers()
      Get the number of live region servers
      Returns:
      number of Live region servers

    • getDeadRegionServers

      String getDeadRegionServers()
      Get the dead region servers
      Returns:
      Dead region Servers

    • getNumDeadRegionServers

      int getNumDeadRegionServers()
      Get the number of dead region servers
      Returns:
      number of Dead region Servers

    • getDrainingRegionServers

      String getDrainingRegionServers()
      Get the draining region servers
      Returns:
      Draining region server

    • getNumDrainingRegionServers

      int getNumDrainingRegionServers()
      Get the number of draining region servers
      Returns:
      number of draining region servers

    • getNumWALFiles

      long getNumWALFiles()
      Get the number of master WAL files.

    • getOldestProcedureAgeByType

      Map<String,Long> getOldestProcedureAgeByType()
      Get the age in milliseconds of the oldest active master procedure for each procedure type, keyed by the procedure's simple class name.

    • getSplitPlanCount

      long getSplitPlanCount()
      Get the number of region split plans executed.

    • getMergePlanCount

      long getMergePlanCount()
      Get the number of region merge plans executed.

    • getTableSpaceUtilization

      Map<String,Map.Entry<Long,Long>> getTableSpaceUtilization()
      Gets the space usage and limit for each table.

    • getNamespaceSpaceUtilization

      Map<String,Map.Entry<Long,Long>> getNamespaceSpaceUtilization()
      Gets the space usage and limit for each namespace.

    • getMasterInitializationTime

      long getMasterInitializationTime()
      Get the time in Millis when the master finished initializing/becoming the active master

    • getRegionCounts

      PairOfSameType<Integer> getRegionCounts()
      Get the online and offline region counts
      Returns:
      pair of count for online regions and offline regions

    • getOldWALsDirSize

      long getOldWALsDirSize()
      Get the size of old WALs directory in bytes.

    • getSwitchStates

      Map<String,Integer> getSwitchStates()
      Returns known switch states (1 enabled, 0 disabled), or an empty map unless this Master is active and initialized. Unavailable states are omitted. Implementations must not perform remote reads.