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https://issues.apache.org/jira/browse/KYLIN-1826?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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fengYu updated KYLIN-1826:
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Attachment: 0001-KYLIN-1826-support-more-hive-based-on-different-hado.patch
I’m sorry for keeping you waiting. I finish my patch and add an source named
ID_EXTERNAL_HIVE, one project can only use one hive source, for the sake of
modify less code, I add Thread local virable tells which project is using in
current thread.
However, the patch is a litter big, It can apply or merge to kylin-1.5.2.1, I
have test in our env. many times, And It works for more hive client based on
two hadoop cluster, what is more, our hadoop engine(kylin calculate engin) is
another cluster, and It works fine for me.
I wish you can do more test in other env, Hope for your feedback.
> kylin support more than one hive based on different hadoop claster
> ------------------------------------------------------------------
>
> Key: KYLIN-1826
> URL: https://issues.apache.org/jira/browse/KYLIN-1826
> Project: Kylin
> Issue Type: Improvement
> Components: Environment
> Affects Versions: v1.5.2
> Reporter: fengYu
> Assignee: fengYu
> Attachments:
> 0001-KYLIN-1826-support-more-hive-based-on-different-hado.patch
>
>
> Currently, kylin only support one hive which should run by 'hive' command,
> However, when source data located in more than one hive we should deploy more
> kylin instance and more than one metastore. which is difficult to manager and
> may cause some conflict.
> I has been working on it Recently, In our cluster, there are some hive
> client(different metastore) which based on different hadoop cluster, I add a
> new hive source type which called 'external hive' in kylin 1.5.x
> Thanks to kylin Plug-in architecture in 2.x, which make this work easiler.
> the main modification are:
> 1. add hive root directory in hive config file, external hive client exist in
> this directory. hive named by directory name.
> 2. add hive-site.xml file while loading hive tables.
> 3. store hive name into project, one project can only take one hive as source.
> 4. change and add some job to support job building.
> I will upload my patch if I finish all my tests.
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