Apache Virtual Host Total Requests per Second Monitor

  • ID:  Microsoft.ApacheHTTPServer.VirtualHost.Unix.RequestsPerSecond.Monitor
  • Description:  Apache Virtual Host Total Requests per Second Monitor
  • Target:  Apache Virtual Host (Linux)
  • Enabled:  On Standard Monitoring

Operational States

Name State Description
Under Threshold Success Under Threshold
Over Threshold Warning Over Threshold

Overridable Parameters

Parameter Name Default Value Description Override
Interval 300 Interval in seconds
SyncTime   SyncTime
Threshold 100 Threshold
Number of Samples 3 Number of Samples

Alert Details

Monitor State Message Priority Severity Auto Resolution
Over Threshold (Warning) Apache Virtual Host High Requests per Second Medium Warning Yes

Run As Profiles

Name
Default

Monitor Knowledgebase

Summary

The amount of requests per second for an Apache virtual host is high. Apache HTTP Server performance may be adversely affected.

Requests per second are the amount of HTTP requests the Virtual Host handles per second. Apache virtual hosts uses child processes to handle incoming HTTP requests.

The monitor threshold is analyzed against an average of values returned in polls to the agent where the Number of Samples parameter controls the number of samples included in the calculation of the average.

Causes

An unhealthy state indicates that the amount of requests per second is currently high. This may be caused by increased traffic on the virtual host. The default threshold may not be appropriate for every Apache HTTP Server instance.

Resolutions

To address high requests per second on a virtual hosts choose one or more of the following options:

  • Move applications to one or more additional servers.

  • Adjust the monitor Threshold to a value appropriate for the instance

External References
This monitor does not contain any external references.

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