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 23AA24B1A for ; Mon, 27 Jun 2011 17:03:42 +0000 (UTC) Received: (qmail 14467 invoked by uid 500); 27 Jun 2011 17:03:39 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 14412 invoked by uid 500); 27 Jun 2011 17:03:39 -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 14404 invoked by uid 99); 27 Jun 2011 17:03:38 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 27 Jun 2011 17:03:38 +0000 X-ASF-Spam-Status: No, hits=1.5 required=5.0 tests=FREEMAIL_FROM,HTML_MESSAGE,RCVD_IN_DNSWL_LOW,SPF_PASS,T_TO_NO_BRKTS_FREEMAIL X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of watcherfr@gmail.com designates 209.85.160.172 as permitted sender) Received: from [209.85.160.172] (HELO mail-gy0-f172.google.com) (209.85.160.172) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 27 Jun 2011 17:03:32 +0000 Received: by gya6 with SMTP id 6so897487gya.31 for ; Mon, 27 Jun 2011 10:03:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:date:message-id:subject:from:to :content-type; bh=oDXbD70enY4dQcDgENZZHlnCNIRC/ZQ+EmlwCTjUtjI=; b=efo0v3qgF2WyYDELq+LIiTiRLfpxOr4hYCCfwuE1IWq25ZKDMV+rz2RI1C9+DitV85 xaUICtOPycOVB+cQ02jDWWLAO3QZccWrBg+5D7doZKS3CgPn6DCgtqvXCK/F5+ls8odx +do2qIGSZSz1PwNSe5s1LQpQJfM+gOwZws/tU= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=TqXLsts2NF/RMi2wDi4TsdJXFAZrWioRMREy18q/JHz4ijZjj+n/+1frd/wDgN2ixp 28a/MqKXNWzfefobJL04GFPGmhFT/r8F3dwJqX7QuBxR6Ge4vIfpzvkeQ+IeVyhssI6d Mt9U+MmUTzXPO4S/8cCBFd4kbXGqRGjpLBUL4= MIME-Version: 1.0 Received: by 10.236.77.229 with SMTP id d65mr9527868yhe.306.1309194191236; Mon, 27 Jun 2011 10:03:11 -0700 (PDT) Received: by 10.236.36.103 with HTTP; Mon, 27 Jun 2011 10:03:10 -0700 (PDT) Received: by 10.236.36.103 with HTTP; Mon, 27 Jun 2011 10:03:10 -0700 (PDT) Date: Mon, 27 Jun 2011 19:03:10 +0200 Message-ID: Subject: Re: Counter Column From: Philippe To: zangds@ihep.ac.cn, user@cassandra.apache.org Content-Type: multipart/alternative; boundary=20cf3005147eb5ed4704a6b48665 X-Virus-Checked: Checked by ClamAV on apache.org --20cf3005147eb5ed4704a6b48665 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable if i write at ALL and read at ONE,is that setting required ? thanks Le 27 juin 2011 17:22, "Donal Zang" a =E9crit : > On 27/06/2011 17:04, Artem Orobets wrote: >> >> Hi! >> >> As I know, we use counter column only with replication factor ALL, so >> is it mean that we can't read data while any replica will fail? >> > you can use any consistency level, using replicate_on_write=3Dtrue when > create the counter column family. > > -- > Donal Zang > Computing Center, IHEP > 19B YuquanLu, Shijingshan District,Beijing, 100049 > zangds@ihep.ac.cn > 86 010 8823 6018 > --20cf3005147eb5ed4704a6b48665 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable

if i write at ALL and read at ONE,is that setting required ?
thanks

Le 27 juin 2011 17:22, "Donal Zang" &l= t;zangds@ihep.ac.cn<= /a>> a =E9crit=A0:
> On 27/06/2011 17:04, Art= em Orobets wrote:
>>
>> Hi!
>>
>> As I know, we use counter column only = with replication factor ALL, so
>> is it mean that we can't r= ead data while any replica will fail?
>>
> you can use any c= onsistency level, using replicate_on_write=3Dtrue when
> create the counter column family.
>
> --
> Donal Z= ang
> Computing Center, IHEP
> 19B YuquanLu, Shijingshan Distri= ct,Beijing, 100049
> zangds@ihep.ac.cn
> 86 010 8823 6018
>
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