Hello,

Good feedback. I think it is a legacy issue. At the very beginning, the
intermediate table name for the lookup table in view is likely to be the
same. So if a job dropped the table on the finish, it may cause another job
failed. As a temporary solution, we disabled the cleanup for Hive view
tables.

Now since KYLIN-3515 has solved the conflict problem, I think this cleanup
can be uncommented. JIRA is created for this:
https://issues.apache.org/jira/browse/KYLIN-4121 If you want to contribute,
welcome to raise a PR. Thanks!

Best regards,

Shaofeng Shi 史少锋
Apache Kylin PMC
Email: [email protected]

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Xiaoxiang Yu <[email protected]> 于2019年7月31日周三 上午1:27写道:

> Hi,
>     I think these tables could be cleaned by StorageCleanupJob. Please
> refer to http://kylin.apache.org/docs/howto/howto_cleanup_storage.html to
> clean these intermediate table.
>
>
> *-----------------*
> *-----------------*
> *Best wishes to you ! *
> *From :**Xiaoxiang Yu*
>
> At 2019-07-31 15:42:27, "240902713" <[email protected]> wrote:
>
> Hello :
>
> I have a  question about why kylin doesn't drop the intermediate lookup
> table after job finished.
>
> My kylin version: 2.6.0
>
> I have a cube with a fact table join a lookup table  in hive, and both are
> hive view. I submit a job one time per hour.
>
> Kylin can drop the intermediate fact table , but doesn't drop the intermediate
> lookup table .
>
> I check the source code , and find out that , at '13 step: Hive Cleanup'
> ,  the source code has been commented. as the
>
> following picture shows:
>
>
> After several days, in hive, there are a lot of intermediate lookup
> tables which are not droped.
>
> Why can this step result some concurrent issue ?
>
>
> Looking forward your reply.
>
> Thanks !
>
>

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