===== System =====

==== Purpose ====
  * Pro.Monior allows administrators to fully configure a system with an specific functionality : System.
  * This feature is subdivided in the following sections (see image below) :  

==== Worker settings ====
In this section, administrators can configure :
  * **How many  parallel tasks a monitoring process will execute :**
    * This setting will determine how many single taks (monitors) Pro.Monitor is able to execute at the same time
    * Notive that this setting is tight to the number of microprocessors (cores) of the machine on which Pro.Monitor has been installed 
  * **The allocation (in GB) of the monitoring processes memory :**
    * This value concerns the maximum amount of memory that can be allocated to an entire monitoring batch (to be seen as a container of monitors) 
  * **Monitoring processes' timeout (in minutes)**  
  * The possibility to **compress or not monitoring results**. Notice that compressing results will demand a certain CPU process time

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==== Retention settings ====
Under this section, administrators are able to : 
  * **Activate monitors result retention**: 
    * To store monitor execution results. 
    * This function is useful to track generated alarms and metrics, long run times or aborted results 
  * **Store statistics only**: 
    * Keep only track of monitor execution status (won't store alarms/metrics/results). 
    * This will store much less data in the DB.
  * Set the minimum number of seconds a given job (Pro.Monitor Monitor) executes its task before storing the job result. 
    * This setting is particularly useful when Administrator need to track monitors that have taken a long time to execute.     
  * Set the number of days that Pro.Monitor will keep in memory the monitoring data
  * Set the number of days that Pro.Monitor will store in memory monitor tests information
  * Configure the number of days Pro.Monitor log files will be kept in memory - at disposal for downloading -  
  * Launch a "clean up procedure" that will immediately delete all retention data prior to the settings above explained  

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==== Change tracking settings ====
  * Whenever a Pro.Monitor user performs an action that will provoke a significant change in the system, administrators can give the possibility or not - checking on "Optional" - to a user to enter a note concerning the reason for that action, or make this feature mandatory - checking on "Mandatory" -. Check "Deactivated" option to immediately deactivate this function.      

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==== Timeout settings ====
In this section, administrators will be able to :
  * Set the timeout value (in seconds) for a report to be generated 

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==== Flapping settings ====
Under this section, the administrator can determine :
  * When a given system is to be considered as a "flapping system" trough the following parameters :  
    * Period : It represents the time lapse (in hours) to be taken into account 
    * Threshold : It represents the system flaps threshold, once this value is overreached (within the Period parameter value), the system will be considered as “flapping system”

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