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From "Maxim Muzafarov (Jira)" <j...@apache.org>
Subject [jira] [Updated] (IGNITE-9322) MVCC: implement deadlock detector
Date Mon, 21 Oct 2019 13:34:00 GMT

     [ https://issues.apache.org/jira/browse/IGNITE-9322?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Maxim Muzafarov updated IGNITE-9322:
------------------------------------
    Ignite Flags: Docs Required,Release Notes Required  (was: Docs Required)

> 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
>             Fix For: 2.8
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> 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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