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From Ted Yu <yuzhih...@gmail.com>
Subject Re: Co-locate meta and master, and beyond
Date Mon, 24 Mar 2014 22:46:22 GMT
Nice work Jimmy.


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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