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Exinda CLI: APM

Overview

 

This article provides information regarding the Exinda CLI command apm.

You can use the apm command to create, modify or remove an Application Performance Metric (APM) object. An APM object measures a single metric of an application while traversing the network.

 

Information

 

NOTE:  The following syntax convention is used:
  • {}: Options are enclosed in braces and are separated by '|'
  • []: Optional keywords are enclosed in brackets
  • <>: User input is required where variables are enclosed in greater-than and less-than symbols

The following list describes the commands used for performing common actions related to apm: 

Action Description

 Command Parameter Description
To create a new apm object for a specified application apm <name> metric {normalized-network-delay|normalized-server-delay|network-delay|server-delay|round-trip-time|transaction-delay|normalized-transaction-delay|bytes-lost|tcp-connections-started|tcp-connections-aborted|tcp-connections-ignored|tcp-connections-refused} application <application>
  • <name> - The name of your newly created APM object.
  • <application> - The application that the APM object should monitor.
  • metric network-delay - The time taken for data to traverse the network.
  • metric server-delay - The time taken for a server to respond to a request.
  • metric transaction-delay - The total delay time for a transaction (network delay + server delay).
  • metric normalized-network-delay - The time taken for data to traverse the network when you consider a normalized packet size, which by default is 1024 bytes.
  • metric normalized-server-delay - The time taken for a server to respond to a request when you consider a normalized packet size.
  • metric normalized-transaction-delay - The total delay time for a transaction when you consider a normalized packet size.
  • metric round-trip-time - The time taken for a packet to travel from a device, cross the network, and return.
  • metric bytes-lost - The number of bytes lost due to retransmissions.
  • metric tcp-connections-started - The number of TCP connections initiated.
  • metric tcp-connections-aborted - The number of connections that were aborted. The connection is reset after being established. RST from client or server.
  • metric tcp-connections-ignored - The number of connections that expired in the SYN-SENT state and no response was received from the server. Therefore the connection was not established.
  • metric tcp-connections-refused - The number of connections that were reset while in the SYN-SENT state, that is, before the connection was established.
To specify an internal or external Network ObjectNetwork Object to filter the traffic when calculating the application performance apm <name> network-object {internal|external} <network-object-name>
  • internal - Use the named network object that is marked as internal.
  • external - Use the named network object that is marked as external.
  • <network-object-name> - The name of the network object to use as the filter.

To enable or disable a configured alert when the metric rises above a configured threshold for a specified delay

 [no] apm <name> alert enable Not Applicable 
To specify the threshold that will trigger the named alert apm <name> threshold <value>

<value> - When the calculated APM value exceeds and continues to exceed this threshold value for the duration specified by the apm <name> delay command, the alert will be triggered, assuming the alert is enabled.

To specify the delay before triggering the alert, that is the duration that the apm value must exceed the threshold before triggering the alert

 apm <name> delay {60, 300, 1800, 3600, 86400} Not Applicable 
To use a normalized packet size for all apm calculations monitor apm transaction normalize <value>

<value> - When packet sizes are variable, it may help to normalize the packet sizes for more accurate comparisons. The normalize <value> specifies the number of bytes used to normalize the calculation of the normalized delays. The default value is 1024. The maximum value is 1048576.

To disable the normalization calculations

 monitor apm transaction normalize 0 Not Applicable 

 

Find more CLI commands.

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  1. Priyanka Bhotika

  2. Posted
  3. Updated

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