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From Ted Yu <yuzhih...@gmail.com>
Subject New features in next HBase major release Was: trip report for Hadoop In China
Date Tue, 06 Dec 2011 21:39:04 GMT
Forking off another thread.

At the end of my presentation, one of the audience asked what new features
would be implemented in next HBase major release.
I mentioned two possibilities: secondary index and multi-row transaction.

Request / suggestion for the new features are welcome.

If a certain feature gathers enough attention, JIRAs would be created.

Cheers

On Tue, Dec 6, 2011 at 12:50 PM, Andrew Purtell <apurtell@yahoo.com> wrote:

> Also. I was going to start separate threads but probably there is not that
> much to discuss now or off-JIRA:
>
> - I spoke with Jia Liu about HBASE-4120. After 0.92 is out I intend to
> champion / mentor / co-develop 4120 and the follow on table allocation work
> and target 0.94 for it. I think the RPC QoS aspect is not too
> controversial. The allocation/reservation aspects I'd like to aim for a
> coprocessor or at least master plugin based integration so they won't
> impact stability for users who don't enable it. Unlike RPC QoS I suspect
> the changes needed to core can be minimized to coprocessor framework
> additions. Follow up in new JIRAs soon.
>
> - I also met with the author of "CCIndex". He is still interested in
> pursuing an upstreaming of this but may not have a lot of free time. The
> current implementation powers the data cube product at Taobao with half a
> million users IIRC, but the implementation is an invasive hack of the 0.20
> core code. I think the vast majority of it is an application layer concern
> that can be moved to a coprocessor implementation.  The coprocessor
> framework will need some modification as well, specifically hooks for
> handling IOEs taken on HFile reads.   Anyway I'm going to play around with
> this and follow up with a JIRA.
>
> Best regards,
>
>    - Andy
>
>
> On Dec 7, 2011, at 4:00 AM, Andrew Purtell <apurtell@apache.org> wrote:
>
> > I also attended day 1 of Hadoop in China and would add these notes:
> >
> > - Taobao has their own HA NameNode and is interested in contributing
> their changes upstream. I spoke with a platform dev lead. I told him do so
> now while HA is under active development rather than wait and miss an
> opportunity to participate/contribute. I need to follow up with him with a
> list of active HA jiras.
> >
> > - Mingjie Lai presented on HBase and ZooKeeper security. I'll ask him to
> upload his slides somewhere.
> >
> >
> > Best regards,
> >
> >
> >        - Andy
> >
> > Problems worthy of attack prove their worth by hitting back. - Piet Hein
> (via Tom White)
> >
> >
> > ----- Original Message -----
> >> From: Todd Lipcon <todd@cloudera.com>
> >> To: dev@hbase.apache.org
> >> Cc:
> >> Sent: Wednesday, December 7, 2011 2:59 AM
> >> Subject: Re: trip report for Hadoop In China
> >>
> >> Ah, I clicked on "hadooper.cn" directly instead of the earlier link to
> >> the agenda. Oops :)
> >>
> >> Maybe you can put them in a public S3 bucket?
> >>
> >> -Todd
> >>
> >> On Tue, Dec 6, 2011 at 10:56 AM, Ted Yu <yuzhihong@gmail.com> wrote:
> >>> From http://hic2011.hadooper.cn/dct/page/1 (the first two lines):
> >>> Slides would be posted after getting permission from presenters
> >>>
> >>> I can share my slides. My attempt at uploading ppt to slideshare
> failed and
> >>> I don't have PRO account.
> >>>
> >>> I think apache.org would filter attachment.
> >>>
> >>> Suggestion on where I can put my slides would be appreciated.
> >>>
> >>> On Tue, Dec 6, 2011 at 10:39 AM, Todd Lipcon <todd@cloudera.com>
> >> wrote:
> >>>
> >>>> Hey Ted,
> >>>>
> >>>> Thanks for the trip report. Interesting stuff.
> >>>>
> >>>> For those of us who can't read mandarin, can you link directly to
> >> any
> >>>> english slide decks? The hadooper.cn link seems to go to an empty
> wiki
> >>>> template page or something, if I understand Google Translate correctly
> >>>> :)
> >>>>
> >>>> -Todd
> >>>>
> >>>> On Tue, Dec 6, 2011 at 10:36 AM, Ted Yu <yuzhihong@gmail.com>
> >> wrote:
> >>>>> Hi,
> >>>>> There were around 1000 attendees for the first day of HiC.
> >>>>> The enthusiasm for cloud computing, hadoop in particular, was
> >>>> overwhelming.
> >>>>>
> >>>>> Doug Cutting's keynote was well received by attendees.
> >>>>> **Grzegorz's presentation about latest development @ Google,
> >> Pregel in
> >>>>> particular, was impressive.
> >>>>> Xiaodong Zhang's keynote about DOT, an analytical model, was
> >> interesting.
> >>>>>
> >>>>> I listened to several presentations. Here're a few:
> >>>>>
> >>>>> Zheng Shao talked about Puma3 architecture which his group
> >> developed at
> >>>>> Facebook
> >>>>> Jerry and Liyin talked about how Facebook messaging uses Hbase.
> >> Jerry
> >>>>> covered some best practices in using Hbase. Liyin talked about
> >> some
> >>>>> features developed by their team, including Hfile V2, new bloom
> >> filters,
> >>>> etc
> >>>>> Jinglong Liu from Baidu talked about how his team implemented
> >> compression
> >>>>> in hdfs (this is not RAID).
> >>>>>
> >>>>> I met with developers / managers from Taobao, Huawei, Renren
> >> (Chinese
> >>>>> version of Facebook), etc and shared experience using HBase.
> >>>>>
> >>>>> You can find the complete listing of talks here:
> >>>>> http://hic2011.hadooper.cn/dct/page/65580
> >>>>>
> >>>>> On my way back, I met Doug Cutting at the airport.
> >>>>> He endorsed the idea of promoting committers from China so that
> >> hadoop
> >>>>> community would have organic growth.
> >>>>>
> >>>>> I didn't take detailed notes. So please find the slides from
> >> hadooper.cn
> >>>>>
> >>>>> Thanks
> >>>>
> >>>>
> >>>>
> >>>> --
> >>>> Todd Lipcon
> >>>> Software Engineer, Cloudera
> >>>>
> >>
> >>
> >>
> >> --
> >> Todd Lipcon
> >> Software Engineer, Cloudera
> >>
>

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