[jira] [Updated] (IGNITE-13189) Maintenance mode switch and defragmentation process initialization

["Ivan Bessonov (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IGNITE-13189?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ivan Bessonov updated IGNITE-13189:
-----------------------------------
    Labels: IEP-47  (was: )

> Maintenance mode switch and defragmentation process initialization
> ------------------------------------------------------------------
>
>                 Key: IGNITE-13189
>                 URL: https://issues.apache.org/jira/browse/IGNITE-13189
>             Project: Ignite
>          Issue Type: Sub-task
>            Reporter: Sergey Chugunov
>            Assignee: Sergey Chugunov
>            Priority: Major
>              Labels: IEP-47
>
> As described in IEP-47 defragmentation is performed when a node enters a special mode called maintenance mode.
> Discussion on dev-list clarifies algorithm to enter maintenance mode:
>  # Special key is written to local metastorage.
>  # Node is restarted.
>  # Node observes the key on startup and enters maintenance mode.
> Node should be fully-functioning in that mode but should not join the rest of the cluster and participate in any regular activity like handling cache operations.



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