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From "Dmitriy Govorukhin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (IGNITE-8685) Incorrect size for switch segment record
Date Wed, 06 Jun 2018 08:51:00 GMT

    [ https://issues.apache.org/jira/browse/IGNITE-8685?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16503008#comment-16503008
] 

Dmitriy Govorukhin commented on IGNITE-8685:
--------------------------------------------

[~agoncharuk] Thanks for the review, maybe I can add a unit test within the scope of this
issue?

> Incorrect size for switch segment record 
> -----------------------------------------
>
>                 Key: IGNITE-8685
>                 URL: https://issues.apache.org/jira/browse/IGNITE-8685
>             Project: Ignite
>          Issue Type: Bug
>            Reporter: Dmitriy Govorukhin
>            Assignee: Dmitriy Govorukhin
>            Priority: Critical
>             Fix For: 2.6
>
>
> We have invariant that switch segment record should have the size of one byte.
> Although, in the current implementation, size calculation with overhard for storing CRC
and WAL pointer.
> In current implementation, we can suddenly stop WAL iteration which may result in random
data store corruptions or missing updates on node recovery.



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