[jira] [Updated] (IGNITE-7806) SQL TX: Backup update protocol

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

     [ https://issues.apache.org/jira/browse/IGNITE-7806?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vladimir Ozerov updated IGNITE-7806:
------------------------------------
    Fix Version/s: 2.6

> SQL TX: Backup update protocol
> ------------------------------
>
>                 Key: IGNITE-7806
>                 URL: https://issues.apache.org/jira/browse/IGNITE-7806
>             Project: Ignite
>          Issue Type: Task
>          Components: cache, sql
>            Reporter: Vladimir Ozerov
>            Assignee: Roman Kondakov
>            Priority: Major
>             Fix For: 2.6
>
>
> Currently TX SQL protocol works as follows:
> 1) Lock request is sent to {{PRIMARY}} node where updates are applied immediately.
> 2) Updated values are stored in-memory
> 3) When commit command is issued, updates are propagated to {{BACKUP}}s.
> This requires data to be stored in memory at some point. We should design better protocol which will allow for updates to be propagated to backups efficiently.
> Ticket is related (or may be even duplicates) to IGNITE-7186.



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