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From "Pavel Tupitsyn (Jira)" <j...@apache.org>
Subject [jira] [Commented] (IGNITE-10663) Implement cache mode allows reads with consistency check and fix
Date Thu, 28 Nov 2019 20:37:00 GMT

    [ https://issues.apache.org/jira/browse/IGNITE-10663?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16984634#comment-16984634
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Pavel Tupitsyn commented on IGNITE-10663:
-----------------------------------------

[~avinogradov] C#/.NET part of this change does not work and is not covered by tests. I've
created a ticket to fix this: IGNITE-12405

In future, please follow component maintainer matrix and request reviews accordingly: 
https://cwiki.apache.org/confluence/display/IGNITE/How+to+Contribute#HowtoContribute-ReviewProcessandMaintainers

> Implement cache mode allows reads with consistency check and fix
> ----------------------------------------------------------------
>
>                 Key: IGNITE-10663
>                 URL: https://issues.apache.org/jira/browse/IGNITE-10663
>             Project: Ignite
>          Issue Type: Task
>            Reporter: Anton Vinogradov
>            Assignee: Anton Vinogradov
>            Priority: Major
>              Labels: iep-31
>             Fix For: 2.8
>
>          Time Spent: 20h
>  Remaining Estimate: 0h
>
> The main idea is to provide special "read from cache" mode which will read a value from
primary and all backups and will check that values are the same.
> In case values differ they should be fixed according to the appropriate strategy.
> ToDo list:
> 1) {{cache.withReadRepair().get(key)}} should guarantee values will be checked across
the topology and fixed if necessary.
> 2) LWW (Last Write Wins) strategy should be used for validation.
> 3) Since  LWW and any other strategy do not guarantee that the correct value will be
chosen.
> We have to record the event contains all values and the chosen one.



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