[jira] [Work started] (HBASE-28334) Remove unnecessary null DEFAULT_VALUE in TableDescriptorBuilder

["Nirdosh Kumar Yadav (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-28334?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on HBASE-28334 started by Nirdosh Kumar Yadav.
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> Remove unnecessary null DEFAULT_VALUE in TableDescriptorBuilder
> ---------------------------------------------------------------
>
>                 Key: HBASE-28334
>                 URL: https://issues.apache.org/jira/browse/HBASE-28334
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Bryan Beaudreault
>            Assignee: Nirdosh Kumar Yadav
>            Priority: Major
>              Labels: pull-request-available
>
> With ERASURE_CODING_POLICY, the default value is null (no policy). I added a record of that in DEFAULT_VALUES, because other settings seemed to do that.
> A null value is never stored on a HTD because our code handles removing from map when setting null. So we'd never have an opportunity to match against the DEFAULT_VALUE. If someone tried setting a string value "null", that would fail validation because it's not a valid policy. So there's no reason to record this default value. It doesn't cause a problem, but is confusing to anyone reading the code. Remove it.



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