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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (KYLIN-3515) Cubing jobs may interfere with each other if use same hive view
Date Mon, 24 Sep 2018 08:13:00 GMT

    [ https://issues.apache.org/jira/browse/KYLIN-3515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16625505#comment-16625505
] 

ASF subversion and git services commented on KYLIN-3515:
--------------------------------------------------------

Commit cf171da0ef30fec80b21cd1cb2247d0c0bd91716 in kylin's branch refs/heads/update_travis_maven
from [~nichunen]
[ https://gitbox.apache.org/repos/asf?p=kylin.git;h=cf171da ]

KYLIN-3515 Add uuid for materialized table of hive view


> Cubing jobs may interfere with each other if use same hive view
> ----------------------------------------------------------------
>
>                 Key: KYLIN-3515
>                 URL: https://issues.apache.org/jira/browse/KYLIN-3515
>             Project: Kylin
>          Issue Type: Bug
>          Components: Job Engine
>    Affects Versions: v2.4.0
>            Reporter: nichunen
>            Assignee: nichunen
>            Priority: Major
>             Fix For: v2.6.0
>
>         Attachments: Getting started
>
>
> The root cause is for hive view, during cubing, kylin will materialize the view by creating
an intermediate table(drop intermediate table first). The intermediate tables' name is like kylin_intermediate_\{view_name},
that means jobs will create tables with the same name if the same view is referenced. So one
job's intermediate table may be dropped by another job, in such cases, error like "table not
found" will happen



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