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 and 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 and 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 Detail

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 Detail

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