Return-Path: Delivered-To: apmail-hadoop-hbase-user-archive@locus.apache.org Received: (qmail 66898 invoked from network); 26 Jan 2009 02:36:12 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.2) by minotaur.apache.org with SMTP; 26 Jan 2009 02:36:12 -0000 Received: (qmail 20841 invoked by uid 500); 26 Jan 2009 02:36:12 -0000 Delivered-To: apmail-hadoop-hbase-user-archive@hadoop.apache.org Received: (qmail 20813 invoked by uid 500); 26 Jan 2009 02:36:11 -0000 Mailing-List: contact hbase-user-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hbase-user@hadoop.apache.org Delivered-To: mailing list hbase-user@hadoop.apache.org Received: (qmail 20802 invoked by uid 99); 26 Jan 2009 02:36:11 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Sun, 25 Jan 2009 18:36:11 -0800 X-ASF-Spam-Status: No, hits=3.4 required=10.0 tests=HTML_MESSAGE,SPF_NEUTRAL X-Spam-Check-By: apache.org Received-SPF: neutral (athena.apache.org: local policy) Received: from [209.85.221.20] (HELO mail-qy0-f20.google.com) (209.85.221.20) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 26 Jan 2009 02:36:04 +0000 Received: by qyk13 with SMTP id 13so6532818qyk.5 for ; Sun, 25 Jan 2009 18:35:41 -0800 (PST) MIME-Version: 1.0 Received: by 10.214.10.20 with SMTP id 20mr10124423qaj.158.1232937341013; Sun, 25 Jan 2009 18:35:41 -0800 (PST) In-Reply-To: <877i4j4o3n.fsf@mid.deneb.enyo.de> References: <497BEE42.8080602@tubemogul.com> <78568af10901242133h5c7141a4xe8a1b5c394e62a5f@mail.gmail.com> <877i4j4o3n.fsf@mid.deneb.enyo.de> Date: Sun, 25 Jan 2009 18:35:40 -0800 Message-ID: Subject: Re: HBase features From: Jeff Hammerbacher To: hbase-user@hadoop.apache.org Content-Type: multipart/alternative; boundary=0015175cda763dcea70461599882 X-Virus-Checked: Checked by ClamAV on apache.org --0015175cda763dcea70461599882 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Note that BigTable has a system on top of it called Megastore that handles #3: http://perspectives.mvdirona.com/2008/07/10/GoogleMegastore.aspx. On Sun, Jan 25, 2009 at 3:33 AM, Florian Weimer wrote: > * Ryan Rawson: > > > One thing about bigtable (and therefore hbase) is that the system > > doesn't provide much in the way for support of #3. No declarative > > indexes - you can have them, but you have to keep them up to date > > with code. No sorting, no distributed functions, nothing of the > > sort. Do it in client code, use a map-reduce for a longer > > computation. > > What about HBASE-883? (And is there a short example how to use > secondary indices?) > --0015175cda763dcea70461599882--