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From "Enis Soztutar (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-13479) [branch-1.0] Master should not bind to region server ports
Date Thu, 16 Apr 2015 19:01:59 GMT

     [ https://issues.apache.org/jira/browse/HBASE-13479?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Enis Soztutar resolved HBASE-13479.
-----------------------------------
      Resolution: Fixed
    Release Note: 
HBase master now respects the configuration hbase.master.port if set. By default it is not
set in hbase-default.xml in 1.0.x releases. Master also respects the parameter hbase.master.info.port,
which is not changed. However, master will not bind to hbase.regionserver.info.port anymore.
It only binds to hbase.master.info.port. 

The behavior:
1.0.0:
RPC: hbase.master.port IS NOT respected. Master binds to hbase.regionserver.port
INFO: Master binds to hbase.master.info.port AND hbase.regionserver.info.port.
By default, master will use: 16010, 16020, 16030 
1.0.1+:
RPC: hbase.master.port IS respected if configured. Master binds to hbase.regionserver.port
by default if not configured.
INFO: Master binds to hbase.master.info.port only. 
By default, master will use: 16010, 16020.
    Hadoop Flags: Reviewed

I have committed this to 1.0. Thanks for reviews and trying it out. 

> [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
>            Assignee: Enis Soztutar
>            Priority: Blocker
>             Fix For: 1.0.1
>
>         Attachments: hbase-13479_v1.patch
>
>
> 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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