[jira] [Updated] (HBASE-25513) When the table is turned on normalize, the first region may not be merged even the size is 0

["Nick Dimiduk (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-25513?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Nick Dimiduk updated HBASE-25513:
---------------------------------
    Status: Patch Available  (was: Open)

> When the table is turned on normalize, the first region may not be merged even the size is 0
> --------------------------------------------------------------------------------------------
>
>                 Key: HBASE-25513
>                 URL: https://issues.apache.org/jira/browse/HBASE-25513
>             Project: HBase
>          Issue Type: Bug
>          Components: Normalizer
>    Affects Versions: 2.4.1, 3.0.0-alpha-1
>            Reporter: Baiqiang Zhao
>            Assignee: Baiqiang Zhao
>            Priority: Major
>             Fix For: 3.0.0-alpha-1, 2.4.2
>
>
> Suppose a table has 8 regions, the sizes are [0, 10, 1, 0, 9, 0, 12, 0], the average region size is 4, and split is disabled.
> The current Normalizer can only get three merge plans (use size to represent region):
> [1, 0], [9, 0],[12, 0]
> It can not merge the first region, even it's size is 0.



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