AIX Server: CPU fork system calls Health Monitor

Jalasoft.Xian.SmartManagementPacks.AIXServers.Sysfork.1.1 (AggregateMonitor)

This monitor catches Xian events that notifies when the CPU fork system calls if has changed its state.

Knowledge Base article:

Summary

CPU fork system calls is over the threshold.

The number of 'fork()' system calls executed by this CPU is above the maximum threshold configured in Xian Network Manager 2012.

Causes

This server is performing a lot of 'fork()' system calls, probable some applications are creating a child processes in the server.

Resolutions

Verify if this is an expected behavior; If don’t, verify which processes or applications are creating child processes and stop them.

Additional

Monitors the number of 'fork()' system calls performed by this CPU.

Element properties:

Target

Jalasoft.Xian.Common.Elements.ThirdParty.AIX.JsXAIXCPUElement

Parent Monitor

System.Health.PerformanceState

Algorithm

WorstOf

Category

StateCollection

Enabled

True

Alert Generate

True

Alert Severity

MatchMonitorHealth

Alert Priority

Low

Alert Auto Resolve

True

Remotable

True

Accessibility

Public

Alert Message

CPU fork system calls Alert

{0}

Source Code:

<AggregateMonitor ID="Jalasoft.Xian.SmartManagementPacks.AIXServers.Sysfork.1.1" Accessibility="Public" Enabled="true" Target="ThirdParty_AIX!Jalasoft.Xian.Common.Elements.ThirdParty.AIX.JsXAIXCPUElement" ParentMonitorID="SystemHealth!System.Health.PerformanceState" Remotable="true" Priority="Normal">

  <Category>StateCollection</Category>

  <AlertSettings AlertMessage="Sysfork_AlertMessage">

    <AlertOnState>Warning</AlertOnState>

    <AutoResolve>true</AutoResolve>

    <AlertPriority>Low</AlertPriority>

    <AlertSeverity>MatchMonitorHealth</AlertSeverity>

    <AlertParameters>

      <AlertParameter1>$Data/Context/Params/Param[3]$</AlertParameter1>

    </AlertParameters>

  </AlertSettings>

  <Algorithm>WorstOf</Algorithm>

</AggregateMonitor>