[jira] [Created] (IGNITE-14405) Local persistent key-value storage (Vault)

["Vyacheslav Koptilin (Jira)" <ji...@apache.org>]

Vyacheslav Koptilin created IGNITE-14405:
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             Summary: Local persistent key-value storage (Vault)
                 Key: IGNITE-14405
                 URL: https://issues.apache.org/jira/browse/IGNITE-14405
             Project: Ignite
          Issue Type: New Feature
            Reporter: Vyacheslav Koptilin


In order to maintain a local state of Ignite node, it is required to implement persistent key-value storage named Vault.

The data stored in the vault is semantically divided into the following categories:
 - User-level local configuration properties (such as memory limits, network timeouts, etc). User-level configuration properties can be written both at runtime (not all properties will be applied at runtime, however, - some of them will require a full node restart) and when a node is shut down (in order to be able to change properties that prevent node startup for some reason)
 - System-level private properties (such as computed local statistics, node-local common paths, etc). System-level private properties are computed locally based on the information available at node locally (not based on metastorage watched values)
 - System-level distributed metastorage projected properties (such as paths to partition files, etc). System-level projected properties are associated with one or more metastorage properties and are computed based on the local node state and the metastorage properties values. System-level projected properties values are semantically bound to a particular revision of the dependee properties and must be recalculated when dependees are changed (see reliable watch processing).



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