Package com.illumon.iris.db.util

Class PerformanceQueries

java.lang.Object

com.illumon.iris.db.util.PerformanceQueries

@ScriptApi
public class PerformanceQueries
extends Object

Java performance monitoring queries. Contains an amalgamation of methods and classes meant to read the internal logs logged by Deephaven, process them into a more human readable form and generate a set of useful aggregations and views for reporting and diagnosing query performance and usage issues.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	PerformanceQueries.PerformanceOverview
static class	PerformanceQueries.PersistentQueryStatusMonitor

Field Summary

Fields

Modifier and Type	Field	Description
static boolean	PERF_QUERY_BY_INTERNAL_PARTITION

Constructor Summary

Constructors

Constructor	Description
PerformanceQueries()

Method Summary

Modifier and Type	Method	Description
static String	flipTzOffset(String dateTimeStr)	GC timezone offsets are printed with adjustments TO UTC, not FROM UTC.
static Double	getCycleTime(String LogEntry, Integer LTMCycleReportType)
static Integer	getLTMType(String LogEntry)

Methods inherited from class java.lang.Object

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

Field Details

PERF_QUERY_BY_INTERNAL_PARTITION

public static final boolean PERF_QUERY_BY_INTERNAL_PARTITION

Constructor Details

PerformanceQueries

public PerformanceQueries()

Method Details

getLTMType

public static Integer getLTMType(String LogEntry)

getCycleTime

public static Double getCycleTime(String LogEntry, Integer LTMCycleReportType)

flipTzOffset

public static String flipTzOffset(String dateTimeStr)

GC timezone offsets are printed with adjustments TO UTC, not FROM UTC. As a result, the ParNew realtime data plot is incorrect if the gc is not logging in UTC time. E.g. Testing locally in NY GC output prints as 2022-03-04T19:25:37.839+0500 even though NY is -0500 relative to UTC.