Return-Path: Delivered-To: apmail-incubator-cassandra-user-archive@minotaur.apache.org Received: (qmail 29055 invoked from network); 17 Jul 2009 20:01:34 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 17 Jul 2009 20:01:34 -0000 Received: (qmail 57472 invoked by uid 500); 17 Jul 2009 20:02:39 -0000 Delivered-To: apmail-incubator-cassandra-user-archive@incubator.apache.org Received: (qmail 57455 invoked by uid 500); 17 Jul 2009 20:02:39 -0000 Mailing-List: contact cassandra-user-help@incubator.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: cassandra-user@incubator.apache.org Delivered-To: mailing list cassandra-user@incubator.apache.org Received: (qmail 57446 invoked by uid 99); 17 Jul 2009 20:02:39 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 17 Jul 2009 20:02:39 +0000 X-ASF-Spam-Status: No, hits=2.2 required=10.0 tests=HTML_MESSAGE,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of vijay2win@gmail.com designates 209.85.210.191 as permitted sender) Received: from [209.85.210.191] (HELO mail-yx0-f191.google.com) (209.85.210.191) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 17 Jul 2009 20:02:31 +0000 Received: by yxe29 with SMTP id 29so1712060yxe.32 for ; Fri, 17 Jul 2009 13:02:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :from:date:message-id:subject:to:content-type; bh=JaLub518UBzx8yD6UxiPQah8z/fk8HXhVTTPPlo6mgI=; b=xqHVp+BOeue0keaTKRb5WMrDltY6V94yNWUb8et8sPaDkcuVnD8Vv38UzKdz4bK4n9 vVxqV/9OboGmFx7ejqB4Dg/ZZdq54BXj1HYqkxgsg0D5cJ8LnUH7n2r25pKQxsFuwuoN S2aE5PFbF8v+aq6JDjQPdpAqO+debqY7oePms= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :content-type; b=DMiQw+KjCsnBtZ5DBEPx3XlQ4RCJKCuu2IS3pXSpBrLsbmeBuLxYc/VBTcPW0q5WE+ 5y0sSI6B9kZc+Go0dzyLft35zPsmWCBjInUzWR6MXFr/kmCK69fgcE/MAKHd05mz83AB XR0YKU6+7waWE+ir8rpQbzAyQafWBuZ5qlzfI= MIME-Version: 1.0 Received: by 10.100.38.17 with SMTP id l17mr2122873anl.62.1247860931146; Fri, 17 Jul 2009 13:02:11 -0700 (PDT) In-Reply-To: References: From: Vijay Date: Fri, 17 Jul 2009 13:01:51 -0700 Message-ID: <9b40bc2a0907171301w4906deddu1ee217325a6ceff5@mail.gmail.com> Subject: Re: Scaling from 1 to x (was: one server or more servers?) To: cassandra-user@incubator.apache.org Content-Type: multipart/alternative; boundary=0016e642d71087b732046eec438e X-Virus-Checked: Checked by ClamAV on apache.org --0016e642d71087b732046eec438e Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit "since the write will fail if one of the target nodes is down" I thought Hinted handoff will take care of this Right? Write will never fail insted it will write to another node right? correct me if i am wrong. Thanks and Regards, On Tue, Jul 14, 2009 at 7:26 AM, Jonathan Ellis wrote: > N: guarantees consistent reads without having to wait for a quorum, so > you trade write latency and availability (since the write will fail if > one of the target nodes is down) for 100% consistency and reduced read > latency > --0016e642d71087b732046eec438e Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable "since the write will fail if one of the target nodes is down" I thought Hinted handoff will take care of this Right? Write will never f= ail insted it will write to another node right?

correct me if i am w= rong.

Thanks and Regards,
</VJ>




On Tue, Jul 14, 2009 at 7:26 AM, Jonatha= n Ellis <jbellis@= gmail.com> wrote:
N: guarantees consistent reads without hav= ing to wait for a quorum, so
you trade write latency and availability (since the write will fail if
one of the target nodes is down) for 100% consistency and reduced read
latency

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