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https://issues.apache.org/jira/browse/IGNITE-8841?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16757731#comment-16757731
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Ignite TC Bot commented on IGNITE-8841:
---------------------------------------

{panel:title=--> Run :: All: Possible 
Blockers|borderStyle=dashed|borderColor=#ccc|titleBGColor=#F7D6C1}
{color:#d04437}Cache (Restarts) 1{color} [[tests 
5|https://ci.ignite.apache.org/viewLog.html?buildId=2965493]]
* IgniteCacheRestartTestSuite: 
GridCacheReplicatedNodeRestartSelfTest.testRestartWithPutFourNodesNoBackups - 
0,0% fails in last 390 master runs.

{panel}
[TeamCity *--> Run :: All* 
Results|https://ci.ignite.apache.org/viewLog.html?buildId=2965548&buildTypeId=IgniteTests24Java8_RunAll]

> MVCC TX: Read transactions remap when coordinator fails.
> --------------------------------------------------------
>
>                 Key: IGNITE-8841
>                 URL: https://issues.apache.org/jira/browse/IGNITE-8841
>             Project: Ignite
>          Issue Type: Bug
>          Components: mvcc, sql
>            Reporter: Roman Kondakov
>            Assignee: Igor Seliverstov
>            Priority: Major
>              Labels: failover
>          Time Spent: 50m
>  Remaining Estimate: 0h
>
> At the moment read transactions that don't acquire topology lock will be 
> forcibly rolled back on topology change as read tx can be in fly while 
> topology being change.
>  This is done to prevent having active transaction with stale snapshots on 
> new topology in cases of TX coordinator or Near node were lost.
>  
> It would be nice to remap it somehow until they locked a topology or at least 
> throw some meaningful exception to user.
>  For example, it is possible to obtain a new "write" mvcc version from the 
> new coordinator and use this version for all further writes while using "old" 
> version for reads. In this case we need to change visibility rules a little: 
> "old" version should see "own" updates made by "new" "write" version.



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