[jira] [Assigned] (IGNITE-18326) SQL query may forget to finish implicit TX.

["Evgeny Stanilovsky (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IGNITE-18326?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Evgeny Stanilovsky reassigned IGNITE-18326:
-------------------------------------------

    Assignee: Evgeny Stanilovsky

> SQL query may forget to finish implicit TX.
> -------------------------------------------
>
>                 Key: IGNITE-18326
>                 URL: https://issues.apache.org/jira/browse/IGNITE-18326
>             Project: Ignite
>          Issue Type: Bug
>            Reporter: Andrey Mashenkov
>            Assignee: Evgeny Stanilovsky
>            Priority: Major
>              Labels: ignite-3
>             Fix For: 3.0.0-beta2
>
>
> Scenario
> * Start grid of [CGM, MetaStorage, DataNode] nodes.
> * Stop DataNode.
> * Run sql query, and wait on future for timeout.
> * Observe: Query can't be started due to DataNode with the partition is absent, and
> Future throws CancelledException.
> There is no way to get cursor closed because of future failure. Implicit transaction object can't be accessed.
> * Start DataNode back.
> * Run the same query again
> * Observe: Query failed because it can't lock the entry due to previous Tx wasn't committed or rolled back.
> Most likely, noone read from the cursor or we forget to close it when session was closed.
> Find reproducer in IGNITE-18171 PR in ignite-runner module  org.apache.ignite.internal.cluster.ItNodeRestartTest#testImplicitTransaction



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