HighLoadCpuChecker (Support Core Plugin 1427.v083f1d9372a_f API)

java.lang.Object
- java.util.TimerTask
- - hudson.triggers.SafeTimerTask
  - - hudson.model.PeriodicWork
    - - com.cloudbees.jenkins.support.threaddump.HighLoadCpuChecker

All Implemented Interfaces:

ExtensionPoint, Runnable
```
@Extension
public class HighLoadCpuChecker
extends PeriodicWork
```
PeriodicWork to check when there is a high load in the instance. Only checking high CPU usage for the moment, but it can be used to generate thread dumps in high heap memory consumption.

Nested Class Summary
- Nested classes/interfaces inherited from class hudson.triggers.SafeTimerTask
  SafeTimerTask.ExceptionRunnable
- Nested classes/interfaces inherited from interface hudson.ExtensionPoint
  ExtensionPoint.LegacyInstancesAreScopedToHudson

Field Summary

Fields
Modifier and Type	Field	Description
`static Double`	`CPU_USAGE_THRESHOLD`	This is the CPU usage threshold.
`static int`	`HIGH_CPU_CONSECUTIVE_TIMES`	Consecutive high CPUs to take a thread dump
`static int`	`HIGH_CPU_THREAD_DUMPS_TO_RETAIN`	Limit the number of thread dumps to retain on high cpu
`protected FileListCap`	`logs`	Thread dumps generated on high CPU load are stored in $JENKINS_HOME/high-load/cpu
`static int`	`RECURRENCE_PERIOD_SEC`	Recurrence period to check high cpu load consumption.

Fields inherited from class hudson.model.PeriodicWork
DAY, HOUR, logger, MIN

Constructor Summary

Constructors
Constructor Description

HighLoadCpuChecker()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type Method Description

protected void doRun()

long getRecurrencePeriod()
- Methods inherited from class hudson.model.PeriodicWork
  all, getInitialDelay, init
- Methods inherited from class hudson.triggers.SafeTimerTask
  getLogsRoot, of, run
- Methods inherited from class java.util.TimerTask
  cancel, scheduledExecutionTime
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - RECURRENCE_PERIOD_SEC
```
public static final int RECURRENCE_PERIOD_SEC
```
    Recurrence period to check high cpu load consumption. Thread dumps after there are CONSECUTIVE_HIGH_CPU in the RECURRENCE_PERIOD_SEC
  - HIGH_CPU_CONSECUTIVE_TIMES
```
public static final int HIGH_CPU_CONSECUTIVE_TIMES
```
    Consecutive high CPUs to take a thread dump
  - CPU_USAGE_THRESHOLD
```
public static final Double CPU_USAGE_THRESHOLD
```
    This is the CPU usage threshold. Determinate de percentage of the total CPU used across all the cores available
  - HIGH_CPU_THREAD_DUMPS_TO_RETAIN
```
public static final int HIGH_CPU_THREAD_DUMPS_TO_RETAIN
```
    Limit the number of thread dumps to retain on high cpu
  - logs
```
protected final FileListCap logs
```
    Thread dumps generated on high CPU load are stored in $JENKINS_HOME/high-load/cpu
- Constructor Detail
  - HighLoadCpuChecker
```
public HighLoadCpuChecker()
```
- Method Detail
  - getRecurrencePeriod
```
public long getRecurrencePeriod()
```
    Specified by:
    
    getRecurrencePeriod in class PeriodicWork
  - doRun
```
protected void doRun()
              throws Exception
```
    Specified by:
    
    doRun in class SafeTimerTask
    
    Throws:
    
    Exception