Package org.apache.hadoop.hbase.metrics

Interface Histogram

All Superinterfaces:
Metric
All Known Implementing Classes:
HistogramImpl
@LimitedPrivate("Coprocesssor") @Evolving public interface Histogram extends Metric
A metric which measures the distribution of values.

  • Method Summary

    Modifier and Type
    Method
    Description
    long
    getCount()
    Return the total number of values added to the histogram.
    Snapshot
    snapshot()
    Snapshot the current values in the Histogram
    void
    update(int value)
    Adds a new value to the distribution.
    void
    update(long value)
    Adds a new value to the distribution.

  • Method Details

    • update

      void update(int value)
      Adds a new value to the distribution.
      Parameters:
      value - The value to add

    • update

      void update(long value)
      Adds a new value to the distribution.
      Parameters:
      value - The value to add

    • getCount

      long getCount()
      Return the total number of values added to the histogram.
      Returns:
      the total number of values.

    • snapshot

      @Private Snapshot snapshot()
      Snapshot the current values in the Histogram
      Returns:
      a Snapshot of the distribution.