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From "Alexander Paschenko (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (IGNITE-5465) CREATE TABLE: add multithreaded tests
Date Wed, 21 Jun 2017 13:56:00 GMT

    [ https://issues.apache.org/jira/browse/IGNITE-5465?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16057561#comment-16057561

Alexander Paschenko commented on IGNITE-5465:

It looks like the second error could indicate at an actual bug, further investigation needed.
Currently the reasons for such behavior are unclear.

> CREATE TABLE: add multithreaded tests
> -------------------------------------
>                 Key: IGNITE-5465
>                 URL: https://issues.apache.org/jira/browse/IGNITE-5465
>             Project: Ignite
>          Issue Type: Task
>          Components: sql
>            Reporter: Vladimir Ozerov
>            Assignee: Alexander Paschenko
>              Labels: important
>             Fix For: 2.1
> We need to add multithreaded tests for {{CREATE TABLE}} and {{DROP TABLE}} commands in
a similar way as we did that for indexes ({{DynamicIndexAbstractConcurrentSelfTest}}. 
> Let's test the following case:
> - Create and drop of the same several tables from different threads and different nodes
(including a client). 
> - Success criteria: nothing hangs and in the end table/cache is either doesn't exist,
or exists and operational (verify through DML and SELECT queries).
> AFAIK there is a bug in how we start caches dynamically, so honestly there is a high
chance that this test will not work as expected due to non-SQL bugs. So at the very least
we must ensure that it either works, or doesn't work due to a problem outside of DDL engine.

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