Package com.illumon.iris.db.tables.utils

Class QueryPerformanceLogThreshold

java.lang.Object
com.illumon.iris.db.tables.utils.QueryPerformanceLogThreshold
public class QueryPerformanceLogThreshold
extends Object
This class encapsulates the parameters that control whether a given item (nugget or entry interval) is logged to one of our three performance logs.

  • Constructor Summary

    Constructors 
    Constructor Description
    QueryPerformanceLogThreshold​(String kind, long defaultDuration)
    Create a log threshold object for a particular kind of log update "" is for instrumented QueryPerformanceLog/QueryOperationPerformanceLog nuggets "Uninstrumented" is for uninstrumented QueryPerformanceLog/QueryOperationPerformanceLog nuggets, and "Update" is for UpdatePerformanceLog entry intervals. The initial and repeated read threshold defaults to 1.

  • Method Summary

    Modifier and Type Method Description
    boolean shouldLog​(long duration, long repeatedReads, long initialReads)
    Should this item be logged?

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • QueryPerformanceLogThreshold

      public QueryPerformanceLogThreshold​(String kind, long defaultDuration)
      Create a log threshold object for a particular kind of log update
      • "" is for instrumented QueryPerformanceLog/QueryOperationPerformanceLog nuggets
      • "Uninstrumented" is for uninstrumented QueryPerformanceLog/QueryOperationPerformanceLog nuggets, and
      • "Update" is for UpdatePerformanceLog entry intervals.
      The initial and repeated read threshold defaults to 1.
      Parameters:
      kind - kind of update to derive property names
      defaultDuration - default value for duration nanos

  • Method Details

    • shouldLog

      public boolean shouldLog​(long duration, long repeatedReads, long initialReads)
      Should this item be logged?
      Parameters:
      duration - the duration (or usage) of the item
      repeatedReads - the number of repeated reads which occurred
      initialReads - the number of initial reads which occurred
      Returns:
      true if the item exceeds our logging threshold, and thus should be logged