[jira] [Commented] (KYLIN-1890) support hbase table prefix configurable

["hongbin ma (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KYLIN-1890?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15382310#comment-15382310 ] 

hongbin ma commented on KYLIN-1890:
-----------------------------------

it's a good idea. 

besides this solution, kylin will also attach a tag to each created htable. (check the htable's HTableDescriptor, entry "KYLIN_HOST") The tag will be the metadata store name:

  /**
     * For each cube htable, we leverage htable's metadata to keep track of
     * which kylin server(represented by its kylin_metadata prefix) owns this htable
     */
    public final static String HTableTag = "KYLIN_HOST";

> support hbase table prefix configurable
> ---------------------------------------
>
>                 Key: KYLIN-1890
>                 URL: https://issues.apache.org/jira/browse/KYLIN-1890
>             Project: Kylin
>          Issue Type: Improvement
>          Components: General
>    Affects Versions: v1.5.2
>            Reporter: fengYu
>            Assignee: fengYu
>         Attachments: 0001-KYLIN-1890-support-hbase-table-prefix-configurable.patch
>
>
> some times we need deploy two kylin env based on same hbase, I want to change hbase table name prefix based two reasons:
> 1、different kylin env will generate the same table name
> 2、while clean invalid htable for one env will cause delete all tables belong to another env.
> different kylin env use different namespace is acceptable either.



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