Apache HTTP Server Pct Busy Workers Monitor

  • ID:  Microsoft.ApacheHTTPServer.ManagedServer.Unix.PctBusyWorkers.Monitor
  • Description:  Apache HTTP Server Pct Busy Workers
  • Target:  Monitored Apache HTTP Server
  • Enabled:  On Standard Monitoring

Operational States

Name State Description
Under Threshold Success Under Threshold
Over Threshold Error Over Threshold

Overridable Parameters

Parameter Name Default Value Description Override
Interval 300 Interval in seconds
SyncTime   SyncTime
Threshold 80 Threshold
Number of Samples 3 Number of Samples

Alert Details

Monitor State Message Priority Severity Auto Resolution
Over Threshold (Error) Apache HTTP Server Pct Busy Workers Medium Critical Yes

Run As Profiles

Name
Default

Monitor Knowledgebase

Summary

The percent of the Apache processes that are currently servicing incoming HTTP requests is high. Apache HTTP performance may be adversely affected, and incoming HTTP requests may have to wait for current requests to complete to be serviced.

Causes

An unhealthy state indicates that the percentage of busy workers is currently high. This is likely caused by an excessive number of HTTP requests made on the Apache HTTP Server.

Resolutions

Apache workers handle incoming HTTP requests. Workers that are currently servicing HTTP requests are considered ‘busy’ while workers that are waiting are considered ‘idle’. The Apache process will continue to fork or kill processes until they meet requirements set for the following directives. Consider adjustments to the process configuration with the settings:

  • ServerLimit

  • StartServers

  • MaxClients

  • MinSpareThreads

  • MaxSpareThreads

  • ThreadsPerChild

External References
This monitor does not contain any external references.

See Also for Open Source Software Preview Management Pack


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