[GitHub] [ignite-3] denis-chudov commented on a change in pull request #724: IGNITE-16686 Create readme about causality tokens

[GitBox <gi...@apache.org>]

denis-chudov commented on a change in pull request #724:
URL: https://github.com/apache/ignite-3/pull/724#discussion_r827872066



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File path: modules/core/src/main/java/org/apache/ignite/internal/causality/README.md
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@@ -0,0 +1,27 @@
+This package contains classes that are used for implementation of functionality based on causality tokens.
+
+### The purpose
+
+Every component registers configuration update listeners while starting. These listeners receive notifications during the further lifetime of the node, and also during the recovery process while retrieving notifications from Metastorage. While handling the notifications, listeners should rely on the fact that the components that they depend on, won’t return stale or inconsistent data, regardless of order in which these listeners will be called. It should be guaranteed by causality tokens mechanism.

Review comment:
       I suggest to add a link to recovery readme later, as it is going to be merged to feature branch first.




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