Anoop Sam John commented on HBASE-24388:

bq.And if so, we could also make the data directory on root fs and the wal 
directory on wal fs, then the code could be simplified a bit.
I was about to ask this Q following Stack's Q.. :-).  I have to have a detailed 
look at this but why this change will simplify the code? Its just a matter of 
where (which FS) the dir is created right? So it should be  a matter of 
changing the base directory alone?  May be am wrong as I did not read the code 
part.  But is that suggest we need better abstraction in code level there?  How 
hard it will be to make this configurable even? (To have the local region data 
in root or WAL FS)

I would say it will be better to rename the 'MasterProcs' to a generic name.

> Introduce a 'local root region' at master side to store the location of meta 
> table
> ----------------------------------------------------------------------------------
>                 Key: HBASE-24388
>                 URL: https://issues.apache.org/jira/browse/HBASE-24388
>             Project: HBase
>          Issue Type: Sub-task
>          Components: meta, Region Assignment
>            Reporter: Duo Zhang
>            Assignee: Duo Zhang
>            Priority: Major

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