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PreFetch

Stable version 2.0.0 (Compatible with OutSystems 11)
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 on 10 Sep (11 hours ago)
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Evergreen IT
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prefetch

PreFetch

Documentation
2.0.0

This application has the ability to preload all modules on all front-ends.

There are two options:

  1. It runs in the background with a timer: Timer_PreFetchAllModules.
    1. The default schedule is daily at 05:00.
  2. It can be called as a REST endpoint: https://SERVER/PreFetch/rest/PreFetch/StartPreFetch as part of a CI/CD pipeline.

There are several configuration options:

  • Site Property "DetailedLogging": 
    • When turned on, the system will log a line before and preloading each module. 
      This can be useful to understand if all modules are prefetched as expected.
  • Site Property "IsFetchPerServer": 
    • When turned off, it uses the defined hostname from Administration > Environment Configuration.
    • When turned off, it uses the defined IP-addresses from Administration > Servers.
  • Site Property "ParameterName":
    • By default it's filled with "DefaultDNSName", which points to the Administration > Environment Configuration > Hostname. When this changes in the future or when you want to use a different parameter, this can be adjusted.



1.0.0

PreFetch


The best thing: To get you started, you don't need to do anything and it prefetches all your modules at 5:00 in the morning 😀

But when you want it to work for you?

  • Go to the PreFetch timer and adjust the Schedule.

But what else can you do?

  • More Detailed logs? Change the SiteProperty DetailedLogging to True.
  • Call the Timer from your CI/CD pipeline?
    • Change the SiteProperty APIToken to a new unique value (64 random characters will keep a brute-force attacker busy)
    • Call the REST interface from your CI/CD tool with the following
      • Url: https://{fill_in_your_domain}/PreFetch/rest/PreFetch/StartPreFetch
      • Header: API-token: {the unique token you have also entered in your site property}

Have fun and enjoy a quick initial load, every, day, of, the, year!