Mailing-List: contact user-help@hbase.apache.org; run by ezmlm
Precedence: bulk
Reply-To: user@hbase.apache.org
Received-SPF: pass (nike.apache.org: domain of roth2520@gmail.com designates
 209.85.214.54 as permitted sender)
MIME-Version: 1.0
Sender: roth2520@gmail.com
In-Reply-To: <BLU0-SMTP20074C9F2378340670F9A40981E0@phx.gbl>
References: <041C7C56-64BA-4092-9A4D-48E968B8CC18@vcnc.co.kr>
	<BLU0-SMTP20074C9F2378340670F9A40981E0@phx.gbl>
Date: Fri, 11 Oct 2013 13:54:48 +0900
Message-ID: 
 <CACRKnAOBMTH_TuBjaWeZKhHGkVRvMNOnVOhQZDNVz7R_uTDKiA@mail.gmail.com>
Subject: Re: Haeinsa: linear scalable multi-row transaction library for HBase
From: James Lee <james@vcnc.co.kr>
To: Michael Segel <msegel_hadoop@hotmail.com>
Cc: user@hbase.apache.org, YoungMok Kim <brad@vcnc.co.kr>
Content-Type: multipart/alternative; boundary=001a1132e520039b5404e86febcc

--001a1132e520039b5404e86febcc
Content-Type: text/plain; charset=EUC-KR
Content-Transfer-Encoding: quoted-printable

I'm one of the developer who developed Haeinsa.
Isolation level of Haeinsa is Serializable.
Thanks for having interest in Haeinsa

- James Lee


On Fri, Oct 11, 2013 at 1:41 AM, Michael Segel <msegel_hadoop@hotmail.com>w=
rote:

> Which level of isolation do you support?
>
> On Oct 10, 2013, at 12:55 AM, Myungbo Kim <mbkim@vcnc.co.kr> wrote:
>
> > Hello everyone in the mailing list.
> >
> > I want to introduce an open-source library Haeinsa which supports
> multi-row, multi-table transaction on HBase.
> > Haeinsa is client-only library that support serializability and linear
> scalability.
> > Here is the github repository and presentation that describes mechanism
> of it.
> >
> > github : https://github.com/VCNC/haeinsa
> > presentation : https://speakerdeck.com/vcnc/haeinsa-overview
> >
> > It was inspired by Google's percolator, but implementation detail is
> different.
> > It use two-phase commit protocol and optimistic concurrency control to
> implement, and Haeinsa now processes more than 300M+ transactions per day
> in single cluster without any consistency problem for more than 2 month.
> > I know that there has been lots of libraries and papers for HBase
> transaction, but within my knowledge, this is the only open-source librar=
y
> which support serializability and linear scalability.
> > There is no theoretical limit of transaction throughput.
> > It was tested against cluster on AWS until 40,000 transaction/sec.
> (Still testing on bigger cluster)
> > If you find it interesting, please leave me comment.
> >
> > Thanks,
> > Andrew Kim
>
>


--=20
*=C0=CC =C1=A4 =C7=E0 / Jung-Haeng Lee*
Value Developer, VCNC

"=BF=AC=C0=CE=B5=E9=C0=BB =C0=A7=C7=D1 =B5=D1 =B8=B8=C0=C7 =BF=C2=B6=F3=C0=
=CE =BA=F1=B9=D0 =B0=F8=B0=A3, Between"
http://appbetween.us

Mobile: 010-5054-5321
E-mail: jhlee@vcnc.co.kr
Twitter: @eincs <http://twitter.com/eincs>
Facebook: http://www.facebook.com/eincs
Homepage: http://www.vcnc.co.kr
=BC=AD=BF=EF=BD=C3 =B0=AD=B3=B2=B1=B8 =BF=AA=BB=EF2=B5=BF 719-35 IS=BA=F4=
=B5=F9 5=C3=FE VCNC
IS Building 5th Fl., 719-35, Yeoksam 2-dong, Gangnam-gu, Seoul, Korea

--001a1132e520039b5404e86febcc--