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https://issues.apache.org/jira/browse/IGNITE-6569?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16194813#comment-16194813
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Alexander Paschenko commented on IGNITE-6569:
---------------------------------------------

In this case, {{DROP TABLE}} hangs because it's executed via cache API of the 
same cache that's being destroyed. If query is run via 
{{GridQueryProcessor#querySqlFieldsNoCache}}, or via API of other cache, 
everything works. That said, this freeze is expected behavior - you can't 
destroy a cache which has a query running on it.
Closing as *won't fix*.

> DROP table is frozen in special case
> ------------------------------------
>
>                 Key: IGNITE-6569
>                 URL: https://issues.apache.org/jira/browse/IGNITE-6569
>             Project: Ignite
>          Issue Type: Bug
>          Components: sql
>    Affects Versions: 2.1
>            Reporter: Vasiliy Sisko
>            Assignee: Alexander Paschenko
>             Fix For: 2.3
>
>         Attachments: DropTableExample2-project.tar.gz
>
>
> In attached project file:
> # Run node with using of DropFrozenTableStartup class.
> Execution is frozen in time of DROP table process.



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