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https://issues.apache.org/jira/browse/IGNITE-17123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17551546#comment-17551546
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Ignite TC Bot commented on IGNITE-17123:
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{panel:title=Branch: [pull/10075/head] Base: [master] : No blockers 
found!|borderStyle=dashed|borderColor=#ccc|titleBGColor=#D6F7C1}{panel}
{panel:title=Branch: [pull/10075/head] Base: [master] : No new tests 
found!|borderStyle=dashed|borderColor=#ccc|titleBGColor=#F7D6C1}{panel}
[TeamCity *--> Run :: All* 
Results|https://ci.ignite.apache.org/viewLog.html?buildId=6615893&buildTypeId=IgniteTests24Java8_RunAll]

> Fix update counter assignment on backup nodes.
> ----------------------------------------------
>
>                 Key: IGNITE-17123
>                 URL: https://issues.apache.org/jira/browse/IGNITE-17123
>             Project: Ignite
>          Issue Type: Bug
>          Components: cache
>            Reporter: Andrey Mashenkov
>            Assignee: Andrey Mashenkov
>            Priority: Major
>             Fix For: 2.14
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> Transaction reserves partition counters on primary. 
> On the backup side, TxEntries must be commited with counters from the 
> reserved range.
> However, a range of update counters, which were reserved on primary, is NOT 
> validated on backup. Thus means NOOP invoke operation may cause partition 
> counter difference on the primary and backup nodes.
> 1. Let's pass NOOP result of invoke operation to the backup and avoid 
> incorrect partition counter change on backup nodes (see DhtTxPrepareFuture).
> 2. Update counter can be assigned to TxEntry instantly on tx commit on Remote 
> node (for the WAL purposes) instead of allocating+iterating over a new 
> collection (see GridDistributedTxRemoteAdapter.commitIfLocked).



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