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From ramkrishna vasudevan <ramkrishna.s.vasude...@gmail.com>
Subject Re: Co-locate meta and master, and beyond
Date Fri, 21 Mar 2014 04:02:35 GMT
+1.  Great Jimmy.


On Fri, Mar 21, 2014 at 3:37 AM, Elliott Clark <eclark@apache.org> wrote:

> +1 Awesome work.
>
>
> On Thu, Mar 20, 2014 at 9:08 AM, Jimmy Xiang <jxiang@cloudera.com> wrote:
>
> > Here is a heads up on some work I've been doing of late.
> >
> >
> > My goal is to make region assignment simpler, faster, more reliable
> >
> > and maintainable making it so we are able to handle many more regions
> >
> > more efficiently (improve mttr, and lessen impact of compactions), and
> >
> > to eventually look into quorum-based master service.
> >
> > In HBASE-10569, I posted a patch that makes a HMaster also a
> > HRegionServer.  I've also done work so that we can co-locate the meta
> > region with the master server. These changes are based on one of the
> > agreements per the discussion in HBASE-5487, the master re-design.
> >
> > We should be able to do a rolling restart on to this new basis (I'm
> >
> > working on it).
> >
> > Putting the master and regionserver processes together and making it
> >
> > so meta and master are also together is a step toward making it easier
> > doing
> > region assignment without using ZK, another agreement from HBASE-5487.
> >
> >
> > Thanks.
> >
> > Jimmy
> >
>

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