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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-15073) Finer grained control over normalization actions for RegionNormalizer
Date Tue, 19 Jan 2016 01:53:39 GMT

     [ https://issues.apache.org/jira/browse/HBASE-15073?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ted Yu updated HBASE-15073:
---------------------------
    Fix Version/s:     (was: 1.3.0)
                       (was: 1.2.0)
                       (was: 2.0.0)
     Release Note:   (was: The NORMALIZATION_ENABLED_KEY attribute for table has been renamed
NORMALIZATION_MODE whose value represents the types of action allowed for normalization.
To enable normalization for the table, you can specify 'M' for merging, 'S' for splitting
or "MS" for splitting / merging.
Leave empty to disable normalization.)

> Finer grained control over normalization actions for RegionNormalizer
> ---------------------------------------------------------------------
>
>                 Key: HBASE-15073
>                 URL: https://issues.apache.org/jira/browse/HBASE-15073
>             Project: HBase
>          Issue Type: Task
>          Components: regionserver
>            Reporter: Ted Yu
>            Assignee: Ted Yu
>         Attachments: 15073-v1.txt, 15073-v2.txt, 15073-v2.txt, 15073-v3.txt, 15073-v4.txt,
15073-v5.txt
>
>
> Currently both region split and merge actions are carried out during normalization for
underlying table.
> However, for certain use case(s), it would be desirable to perform only one type of action.
> There is one boolean flag, keyed by NORMALIZATION_ENABLED_KEY, per table that enables
normalization.
> To provide finer grained control, we have several options:
> 1. introduce another per table flag to indicate which type(s) of actions are allowed
("N" for disabled, "S" for split only, "M" for merge only and "MS" for both split and merge)
> 2. introduce another global flag to indicate which type(s) of actions are allowed
> 3. modify the meaning of existing flag keyed by NORMALIZATION_ENABLED_KEY so that it
indicates type(s) of actions



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