Package org.apache.accumulo.core.spi.cache

Interface BlockCache.Stats

Enclosing interface:
BlockCache
public static interface BlockCache.Stats
Cache statistics.

All counts returned by this interface must be monotonically increasing. They must never reset or decrease, as the values are read periodically and the increase between readings is what gets reported.

  • Method Summary

    Modifier and Type
    Method
    Description
    long
    evictionCount()
     
    long
    hitCount()
    Returns the number of lookups that have returned a cached value.
    long
    requestCount()
    Returns the number of times the lookup methods have returned either a cached or uncached value.

  • Method Details

    • hitCount

      long hitCount()
      Returns the number of lookups that have returned a cached value.
      Returns:
      the number of lookups that have returned a cached value

    • requestCount

      long requestCount()
      Returns the number of times the lookup methods have returned either a cached or uncached value.
      Returns:
      the number of lookups

    • evictionCount

      long evictionCount()
      Returns:
      The number of entries evicted from the cache.
      Since:
      4.0.0