Tag: iot

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EVA ICS replication between v3 and v4

The new-generation EVA ICS v4 “internal alpha” is going to be released in May 2022. The “internal alpha” version will be available to our Enterprise customers only and will have very limited support of hardware equipment / logic, plus no replication between v4 and v4 nodes yet. However, it will be able to fully host UI apps and replicate data from v3 secondaries.

The goal is to:

  • test v4 core in production
  • replace heavy-loaded v3 SFA controllers
EVA ICS v3 to v4 replication

If you are the existing customer and want to try EVA ICS v4 internal alpha, please read the conditions:

v3-v4
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EVA ICS v4 architecture (draft)

EVA ICS v4 is going to be released this year. How is it different from EVA ICS v3?

Take a look on the schema. The first one is v3 architecture we’ve been using since 2017. And here are the key problems with it:

  • The monolith core, written in Python
  • After 4 years, the core has got about 6 types of extensions (drivers, core scripts, plugins etc.)
  • Majority of plugins can be written in Python only and work directly inside the core, which reduces its stability and performance
  • Limited CPU scalability
  • Each enterprise setup is unique and requires unique features. All of them go to the core, slowing it down and making it more and more complicated.

But things will be completely different in v4.

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Future of EVA ICS

EVA ICS version 3 has become the most successful industrial IoT product of our company. It already has dozens of setups we support directly and I hope even more setups we don’t.

But the version 3 has a problem: because of the rapid numbers of customers and features growth, it’s internal architecture was changed several times almost from scratch, lots of stuff already became obsolete and too complicated for beginners.

Here are the plans for the EVA ICS codename “nextgen” (next generation):

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