[jira] [Commented] (IGNITE-5411) Persist affinity key on disk

["Vladimir Ozerov (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IGNITE-5411?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16038552#comment-16038552 ] 

Vladimir Ozerov commented on IGNITE-5411:
-----------------------------------------

I thought a bit more on this problem, and it seems that we'd better to save information about affinity column near cache configuration.

> Persist affinity key on disk
> ----------------------------
>
>                 Key: IGNITE-5411
>                 URL: https://issues.apache.org/jira/browse/IGNITE-5411
>             Project: Ignite
>          Issue Type: Task
>          Components: binary
>            Reporter: Vladimir Ozerov
>             Fix For: 2.1
>
>
> Currently binary metadata is not persisted on a disk anyhow. It means that after full cluster restart we will loose all runtime metadata (except of those configured explicitly in {{IgniteConfiguration.binaryConfiguration}}.
> In future releases we will store metadata in separate storage. For now I propose only to store typeId -> affinityKey mapping on disk to improve value of {{CREATE TABLE}} feature where affinity key is essential for data co-location.



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