[jira] [Commented] (IGNITE-13873) Milti-cell transaction changes may be not visible (during some time) after the Cellular switch [Sync-free switch]

["Alexey Gidaspov (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IGNITE-13873?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17371672#comment-17371672 ] 

Alexey Gidaspov commented on IGNITE-13873:
------------------------------------------

Hello [~av],
I see 'Release Notes Required' flag is set and no release note attached. Please add release note or remove the flag. Thank you. 
 

> Milti-cell transaction changes may be not visible (during some time) after the Cellular switch [Sync-free switch]
> -----------------------------------------------------------------------------------------------------------------
>
>                 Key: IGNITE-13873
>                 URL: https://issues.apache.org/jira/browse/IGNITE-13873
>             Project: Ignite
>          Issue Type: Improvement
>            Reporter: Anton Vinogradov
>            Assignee: Anton Vinogradov
>            Priority: Critical
>              Labels: iep-45
>             Fix For: 2.11
>
>         Attachments: master (as 2.9) vs improved (as dev) .png
>
>          Time Spent: 2h 20m
>  Remaining Estimate: 0h
>
> Transactions over some cells may be recovered after the stale data read.
> For example:
> We have 2 cells, the first contains partitions for k1, second for k2.
> Tx with put(k1,v1) and put(k2,v2) started and prepared.
> Then node from the first cell, which is the primary for k1, failed.
> Currently, the second cell (with key2) may finish the cellular switch before tx recovered and stale data read is possible.
> Primaries from the {{tx.transactionNodes()}} should be taken into account instead of the current logic that awaits for all transactions located on nodes who are backups to the failed primary.



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