[jira] [Commented] (HBASE-13479) [branch-1.0] Master should not bind to region server ports

["Enis Soztutar (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-13479?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14496764#comment-14496764 ] 

Enis Soztutar commented on HBASE-13479:
---------------------------------------

I have this as a blocker for 1.0.1. If we decide to do this, I'll sink the RC, since having it early in the 1.0.x lifetime is important. 

> [branch-1.0] Master should not bind to region server ports
> ----------------------------------------------------------
>
>                 Key: HBASE-13479
>                 URL: https://issues.apache.org/jira/browse/HBASE-13479
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Enis Soztutar
>            Priority: Blocker
>             Fix For: 1.0.1
>
>
> In parent jira, we have brought back old config value {{hbase.master.port}} and made it so that if it is configured (which is by default), master does not bind to the region servers's RPC and info ports now. We have realized that master binding to RS ports turns out to be a pain point and unnecessary frustration for users (although we were expecting the opposite). 
> Let's use this jira to see what we can do in 1.0.x series. In 1.0.0, master binds to ports
> {{hbase.regionserver.port}}
> {{hbase.master.info.port}}
> {{hbase.regionserver.info.port}}
> In 1.0.x, we have a couple of options I think:
> (a) don't do anything. 
> (b) Commit patch from master as it is. All upgrades from 1.0.0 will observe changed ports. 
> (c) Commit the patch, disabled by default. If user has {{hbase.master.port}} set, bind to the port. Only users who set the conf value will observe changed ports. 
> (d) Commit the patch with an extra config option {{hbase.master.compat.mode}}. The users have to explicitly enable this in 1.0. 



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