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https://issues.apache.org/jira/browse/IGNITE-8371?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sergey Kalashnikov reassigned IGNITE-8371:
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Assignee: Sergey Kalashnikov
> MVCC TX: Force key request during rebalance may cause error on backups.
> -----------------------------------------------------------------------
>
> Key: IGNITE-8371
> URL: https://issues.apache.org/jira/browse/IGNITE-8371
> Project: Ignite
> Issue Type: Bug
> Components: sql
> Reporter: Roman Kondakov
> Assignee: Sergey Kalashnikov
> Priority: Major
> Labels: mvcc
>
> When backup is updating during rebalance and the key to be updated in TX is
> not supplied yet from the previous partition owner, backup makes force key
> request in order to obtain this key and all its versions. But later this key
> can be send to this backup from the previous owner once again as a part of
> standard rebalance process. And this causes write conflict: we have to write
> this key on the backup once again.
> Solution: do not update key when it has already been written before (during
> rebalance or force key request process).
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