Return-Path: X-Original-To: apmail-cassandra-user-archive@www.apache.org Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id F1FC2D459 for ; Thu, 18 Oct 2012 19:01:06 +0000 (UTC) Received: (qmail 59418 invoked by uid 500); 18 Oct 2012 19:01:04 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 59397 invoked by uid 500); 18 Oct 2012 19:01:04 -0000 Mailing-List: contact user-help@cassandra.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@cassandra.apache.org Delivered-To: mailing list user@cassandra.apache.org Received: (qmail 59374 invoked by uid 99); 18 Oct 2012 19:01:03 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 18 Oct 2012 19:01:03 +0000 X-ASF-Spam-Status: No, hits=-0.1 required=5.0 tests=HTML_MESSAGE,RCVD_IN_DNSWL_MED,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of btv1==63880444583==mkjellman@barracuda.com designates 64.235.145.84 as permitted sender) Received: from [64.235.145.84] (HELO bsf04.barracuda.com) (64.235.145.84) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 18 Oct 2012 19:00:59 +0000 X-ASG-Debug-ID: 1350586823-03dc6441388ef50001-f7dORa Received: from bn-scl-fe06.Cudanet.local (bn-scl-fe06.cudanet.local [10.8.1.48]) by bsf04.barracuda.com with ESMTP id SC8snxUpnpR2tVda (version=TLSv1 cipher=AES128-SHA bits=128 verify=NO) for ; Thu, 18 Oct 2012 12:00:23 -0700 (PDT) X-Barracuda-Envelope-From: mkjellman@barracuda.com Received: from bn-scl-be03.Cudanet.local (10.8.1.54) by bn-scl-fe06.Cudanet.local (10.8.1.48) with Microsoft SMTP Server (TLS) id 8.3.279.1; Thu, 18 Oct 2012 12:00:23 -0700 Received: from bn-scl-be03.Cudanet.local ([::1]) by bn-scl-be03.Cudanet.local ([::1]) with mapi; Thu, 18 Oct 2012 12:00:23 -0700 From: Michael Kjellman X-Barracuda-Apparent-Source-IP: ::1 To: "user@cassandra.apache.org" Date: Thu, 18 Oct 2012 12:00:18 -0700 Subject: Re: hadoop consistency level Thread-Topic: hadoop consistency level X-ASG-Orig-Subj: Re: hadoop consistency level Thread-Index: Ac2tYtMiBwKLj49ITKyA2LX2TJCk6g== Message-ID: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Microsoft-MacOutlook/14.2.3.120616 acceptlanguage: en-US Content-Type: multipart/alternative; boundary="_000_CCA59F50171C0mkjellmanbarracudacom_" MIME-Version: 1.0 X-Barracuda-Connect: bn-scl-fe06.cudanet.local[10.8.1.48] X-Barracuda-Start-Time: 1350586823 X-Barracuda-Encrypted: AES128-SHA X-Barracuda-URL: http://bsf04.barracuda.com:8000/cgi-mod/mark.cgi Received-SPF: softfail (barracuda.com: domain of transitioning mkjellman@barracuda.com does not designate ::1 as permitted sender) X-Barracuda-BRTS-Status: 1 X-Virus-Scanned: by bsmtpd at barracuda.com X-Barracuda-Spam-Score: 0.15 X-Barracuda-Spam-Status: No, SCORE=0.15 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=9.0 tests=BSF_SPF_SOFTFAIL, CN_BODY_332, HTML_MESSAGE, THREAD_INDEX, THREAD_TOPIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.111715 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.01 THREAD_INDEX thread-index: AcO7Y8iR61tzADqsRmmc5wNiFHEOig== 0.01 THREAD_TOPIC Thread-Topic: ...(Japanese Subject)... 0.12 CN_BODY_332 BODY: CN_BODY_332 0.00 HTML_MESSAGE BODY: HTML included in message 0.00 BSF_SPF_SOFTFAIL Custom Rule SPF Softfail X-Virus-Checked: Checked by ClamAV on apache.org --_000_CCA59F50171C0mkjellmanbarracudacom_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Unless you have Brisk (however as far as I know there was one fork that got= it working on 1.0 but nothing for 1.1 and is not being actively maintained= by Datastax) or go with CFS (which comes with DSE) you are not guaranteed = all data is on that hadoop node. You can take a look at the forks if intere= sted here: https://github.com/riptano/brisk/network but I'd personally be a= fraid to put my eggs in a basket that is certainly not super supported anym= ore. job.getConfiguration().set("cassandra.consistencylevel.read", "QUORUM"); sh= ould get you started. Best, michael From: Jean-Nicolas Boulay Desjardins > Reply-To: "user@cassandra.apache.org" > Date: Thursday, October 18, 2012 11:49 AM To: "user@cassandra.apache.org" > Subject: Re: hadoop consistency level Why don't you look into Brisk: http://www.datastax.com/docs/0.8/brisk/abou= t_brisk On Thu, Oct 18, 2012 at 2:46 PM, Andrey Ilinykh > wrote: Hello, everybody! I'm thinking about running hadoop jobs on the top of the cassandra cluster. My understanding is - hadoop jobs read data from local nodes only. Does it mean the consistency level is always ONE? Thank you, Andrey 'Like' us on Facebook for exclusive content and other resources on all Barr= acuda Networks solutions.=0D Visit http://barracudanetworks.com/facebook=0D =0D --_000_CCA59F50171C0mkjellmanbarracudacom_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable
Unless you ha= ve Brisk (however as far as I know there was one fork that got it working o= n 1.0 but nothing for 1.1 and is not being actively maintained by Datastax)= or go with CFS (which comes with DSE) you are not guaranteed all data is o= n that hadoop node. You can take a look at the forks if interested here:&nb= sp;https://github.com/= riptano/brisk/network but I'd personally be afraid to put my eggs = in a basket that is certainly not super supported anymore.

job.getConfiguration().set("cassandra.consistencylevel.= read", "QUORUM"); should get you started.


Best,

michael

=

From: Jean-Nico= las Boulay Desjardins <jnbdzjnbd= z@gmail.com>
Reply-To: "= user@cassandra.apache.org"= <user@cassandra.apache.org= >
Date: Thursday, Octobe= r 18, 2012 11:49 AM
To: "user@cassandra.apache.org" <<= a href=3D"mailto:user@cassandra.apache.org">user@cassandra.apache.org&g= t;
Subject: Re: hadoop consiste= ncy level

Why don't you look into Brisk:  http://www.datastax.com/docs/0.8/brisk/about_brisk 

On Thu, Oct 18, 2012 at 2:46 PM, Andrey Ilinykh <ailinykh@gmail.= com> wrote:
Hello, everybody!
I'm thinking about running hadoop jobs on the top of the cassandra
cluster. My understanding is - hadoop jobs read data from local nodes
only. Does it mean the consistency level is always ONE?

Thank you,
  Andrey


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