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 35B8A726B for ; Fri, 11 Nov 2011 12:57:27 +0000 (UTC) Received: (qmail 46365 invoked by uid 500); 11 Nov 2011 12:57:25 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 46269 invoked by uid 500); 11 Nov 2011 12:57:25 -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 46261 invoked by uid 99); 11 Nov 2011 12:57:25 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 11 Nov 2011 12:57:25 +0000 X-ASF-Spam-Status: No, hits=1.5 required=5.0 tests=FREEMAIL_FROM,HTML_MESSAGE,RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of springrider@gmail.com designates 209.85.215.172 as permitted sender) Received: from [209.85.215.172] (HELO mail-ey0-f172.google.com) (209.85.215.172) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 11 Nov 2011 12:57:18 +0000 Received: by eyg24 with SMTP id 24so3844305eyg.31 for ; Fri, 11 Nov 2011 04:56:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :content-type; bh=hvqYHbW4F8pPbEUtYlPp37Ny9uWazSYRjJwZCJhqKVM=; b=T120OZIw/QYIGDLrb8LTLcM7QkL/yf9rHh5/KTlbOgP0DfVYu6nRxg9n2GaY7OFrvq 31zwcQepyaY/jwa3qJNAv4itOkwoUhvPt4Eh7mml/zrTCqRFsGrd50Afkq/nC6am5giF nD0UZQtiN8S0cZSI8keGxgHJff5lmaK4h7Wlg= Received: by 10.213.26.74 with SMTP id d10mr27168ebc.39.1321016218244; Fri, 11 Nov 2011 04:56:58 -0800 (PST) MIME-Version: 1.0 Received: by 10.213.34.2 with HTTP; Fri, 11 Nov 2011 04:56:37 -0800 (PST) In-Reply-To: <4EBCC4BC.4060609@sendmail.cz> References: <4EBCC4BC.4060609@sendmail.cz> From: Yan Chunlu Date: Fri, 11 Nov 2011 20:56:37 +0800 Message-ID: Subject: Re: is that possible to add more data structure(key-list) in cassandra? To: user@cassandra.apache.org Content-Type: multipart/alternative; boundary=0015174bdc9c6e550904b1750eeb X-Virus-Checked: Checked by ClamAV on apache.org --0015174bdc9c6e550904b1750eeb Content-Type: text/plain; charset=ISO-8859-1 I thought currently no one is maintaining supercolumns related code, and also it not quite efficient. On Fri, Nov 11, 2011 at 2:46 PM, Radim Kolar wrote: > Dne 11.11.2011 5:58, Yan Chunlu napsal(a): > > I think cassandra is doing great job on key-value data store, it saved me >> tremendous work on maintain the data consistency and service availability. >> But I think it would be great if it could support more data structures >> such as key-list, currently I am using key-value save the list, it seems >> not very efficiency. Redis has a good point on this but it is not easy to >> scale. >> >> Maybe it is a wrong place and wrong question, only curious if there is >> already solution about this, thanks a lot! >> > use supercolumns unless your lists are very large. > --0015174bdc9c6e550904b1750eeb Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable I thought currently no one is maintaining supercolumns related code, and al= so it not quite efficient.



On Fri, Nov 11, 2011 at 2:46 PM, Radim Kolar <hsn@sendmail.cz> wrote:
Dne 11.11.2011 5:58, Yan Chunlu napsal(a):<= div class=3D"im">
I think cassandra is doing great job on key-value data store, it saved me t= remendous work on maintain the data consistency and service availability. = =A0 =A0But I think it would be great if it could support more data structur= es such as key-list, currently I am using key-value save the list, it seems= not very efficiency. Redis has a good point on this but it is not easy to = scale.

Maybe it is a wrong place and wrong question, only curious if there is alre= ady solution about this, thanks a lot!
use supercolumns unless your lists are very large.

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