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From Ted Yu <yuzhih...@gmail.com>
Subject Re: HMaster acts as HRegionServer when run on a single node
Date Sun, 04 May 2014 14:24:59 GMT
bq. some changes on the -ROOT- usage and I wonder if the trunk
documentation reflects those change?

In trunk documentation, -ROOT- is mentioned alongside .META. in a few
places.


On Sat, May 3, 2014 at 10:51 AM, Eric Charles <eric@apache.org> wrote:

> Thx Ted, I missed that one - This mitigates my surprise.
>
> I built the hbase book (mvn site), and it seems to me that it is not
> documented. Is it the case? I also remember some changes on the -ROOT-
> usage and I wonder if the trunk documentation reflects those change?
>
> Cheers, Eric
>
>
> On 05/03/2014 06:08 PM, Ted Yu wrote:
> > Eric:
> > Take a look at HBASE-10569.
> >
> > Cheers
> >
> >
> > On Sat, May 3, 2014 at 5:14 AM, Eric Charles <eric@apache.org> wrote:
> >
> >> Hello,
> >>
> >> A few (3?) months ago, trunk was still acting the classical way in case
> >> of a single HBase node relying on HDFS (see config in [1]), meaning that
> >> both HMaster and HRegionServer were needed (clearly visible via ps -ef
> >> or jps).
> >>
> >> Today, it seems that the HMaster acts also as HRegionServer.
> >> HBase works fine with a single process and launching a region server
> >> returns a "java.net.BindException: Address already in use", which
> >> confirms that HMaster now also serves the HRegion ports.
> >>
> >> For the Web UI, I was used to go by default to http://localhost:60010
> >> for the master and http://localhost:60030 Now I need to go to
> >> http://localhost:16010 which returns a 302 HTTP Response redirecting me
> >> to http://localhost:16030/rs-status showing the
> >>
> >> I can find where the default ports were changed [2].
> >>
> >> Apart from that, the HBase console works fine and the HBase files are
> >> created in HDFS.
> >>
> >> Is this the expected behavior? Can someone point me to those recent
> >> changes (JIRA, mailing list...)?
> >>
> >> I want to double check as I am now working on HBASE-10336 "Remove
> >> deprecated usage of Hadoop HttpServer in InfoServer", I first want to
> >> assess the normal behavior before testing the changes.
> >>
> >> Thx,
> >>
> >> Eric
> >>
> >> [1]
> >>
> >>
> https://raw.githubusercontent.com/datalayer/io.datalayer/master/hbase/server/src/main/resources/hbase-site.xml
> >>
> >> [2]
> >>
> >>
> https://github.com/apache/hbase/commit/4430d10759f5e6392a0bd36395ba4f6bbc3bc94f
> >>
> >
>

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