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https://issues.apache.org/jira/browse/IGNITE-9322?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16724806#comment-16724806
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Ivan Pavlukhin commented on IGNITE-9322:
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[~gvvinblade], Do you have some suggestion to improve searching for a
transaction object by MVCC version and searching for a waiting transaction
blocker? Currently it is done quite naively.
> MVCC: implement deadlock detector
> ---------------------------------
>
> Key: IGNITE-9322
> URL: https://issues.apache.org/jira/browse/IGNITE-9322
> Project: Ignite
> Issue Type: Task
> Components: mvcc
> Reporter: Vladimir Ozerov
> Assignee: Ivan Pavlukhin
> Priority: Major
> Labels: MakeTeamcityGreenAgain
>
> Deadlocks are not uncommon during SQL execution.
> We need to implement distributed deadlock detection protocol for MVCC.
> Essentially, nodes should exchange some map of tx wait lists, and try to find
> a loop. If loop is found, then one of problematic transactions should be
> rolled back.
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