From user-return-7302-apmail-cassandra-user-archive=cassandra.apache.org@cassandra.apache.org Wed Jul 07 14:09:51 2010 Return-Path: Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: (qmail 6478 invoked from network); 7 Jul 2010 14:09:51 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 7 Jul 2010 14:09:51 -0000 Received: (qmail 83557 invoked by uid 500); 7 Jul 2010 14:09:50 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 83332 invoked by uid 500); 7 Jul 2010 14:09:46 -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 83324 invoked by uid 99); 7 Jul 2010 14:09:46 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 07 Jul 2010 14:09:46 +0000 X-ASF-Spam-Status: No, hits=0.0 required=10.0 tests=FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPF_PASS,T_TO_NO_BRKTS_FREEMAIL X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of jbellis@gmail.com designates 74.125.83.172 as permitted sender) Received: from [74.125.83.172] (HELO mail-pv0-f172.google.com) (74.125.83.172) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 07 Jul 2010 14:09:39 +0000 Received: by pvd12 with SMTP id 12so4268791pvd.31 for ; Wed, 07 Jul 2010 07:09:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:mime-version:received:in-reply-to :references:from:date:message-id:subject:to:content-type :content-transfer-encoding; bh=CC1fL6+Feu2yiO22aKF/+EyS3ffKTJwlH8BEpAkcRP8=; b=pHFTIpFtyiBZKcDnmxabodvkSREX1hE6ErhunsR2JBa7sv/LLr70ZXV0uyrzwGr3Tu 8JQY1Ok4/zz4bugvvWCmp9iQs5CKXd2ojVVkY35J+uqDqJpxZdd7GdYdRjDdNv3TX9zl w1j4a51HrBeAWSyRmqF67uRQ8qM9RAQc5WM5w= 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:content-transfer-encoding; b=NDxbZjaGm/K1it5tYlm7WgDaSU42FAEHOacgkgNBnu6OJUeDdF4klOn6EVjJHc8FfQ /V3IBuhafsNSTUtW2VoKB0DJ+KY8ZoI1P3JHOHdbMHqdBITxWZW6471cWIsABaL79Ux4 CM+Zr76miYB/2H0q2nxJl6EuBH3SzA1HSXgy0= Received: by 10.142.147.20 with SMTP id u20mr7774932wfd.132.1278511756261; Wed, 07 Jul 2010 07:09:16 -0700 (PDT) MIME-Version: 1.0 Received: by 10.143.28.5 with HTTP; Wed, 7 Jul 2010 07:08:53 -0700 (PDT) In-Reply-To: References: From: Jonathan Ellis Date: Wed, 7 Jul 2010 09:08:53 -0500 Message-ID: Subject: Re: Some questions about the write operation and hinted handoff To: user@cassandra.apache.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Virus-Checked: Checked by ClamAV on apache.org On Tue, Jul 6, 2010 at 10:05 PM, ChingShen wrote: > Hi all, > > =A0 I have A, B, C, D, E, F and G nodes(RF=3D3), if I run a write > operation(CL=3DALL) on "A" node(coordinator), and the key range between A= and > B, therefore, the data will be stored on B, C and D nodes, right? depends on replication strategy. with rackunawarestrategy it will be b/c/d= . > Second, if > B node is down during the write operation, does it return failure(CL=3DAL= L) to > user? yes --=20 Jonathan Ellis Project Chair, Apache Cassandra co-founder of Riptano, the source for professional Cassandra support http://riptano.com