[ https://issues.apache.org/jira/browse/IGNITE-9428?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Roman Kondakov updated IGNITE-9428:
-----------------------------------
Ignite Flags: (was: Docs Required)
> 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
> Priority: Major
> Labels: mvcc_stabilization_stage_1, transactions
> Fix For: 2.8
>
>
> 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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