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https://issues.apache.org/jira/browse/IGNITE-9428?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16623598#comment-16623598
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Nikolay Izhikov commented on IGNITE-9428:
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[~amashenkov] Do we have a chance to resolve this ticket until the code freeze
of 2.7?
> MVCC TX: MvccQueryTrackerImpl.onDone() semantic is broken.
> ----------------------------------------------------------
>
> Key: IGNITE-9428
> URL: https://issues.apache.org/jira/browse/IGNITE-9428
> Project: Ignite
> Issue Type: Bug
> Components: mvcc, sql
> Reporter: Roman Kondakov
> Assignee: Andrew Mashenkov
> Priority: Major
> Fix For: 2.7
>
>
> Due to IGNITE-9256 patch, multiple {{H2ResultSetIterator#onClose}} invocation
> becomes possible. This can be considered as a {{Closable}} contract violation
> and should be fixed.
> Also this case revealed a bug in {{MvccQueryTrackerImpl}} when multiple
> {{onDone()}} call leads to multiple query finished acks sent back to the
> {{MvccCoordinator}} which leads to the problems with the query tracking and
> assertion errors.
> Reproducer:
> {{CacheMvccSqlTxQueriesAbstractTest#testAccountsTxDmlSumSql_WithRemoves_SingleNode}}
>
>
> Upd: test was fixed in IGNITE-9373. But MvccQueryTrackerImpl.onDone() issue
> is still actual.
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