Return-Path: X-Original-To: apmail-accumulo-user-archive@www.apache.org Delivered-To: apmail-accumulo-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 E270FE46C for ; Tue, 4 Dec 2012 17:46:25 +0000 (UTC) Received: (qmail 25194 invoked by uid 500); 4 Dec 2012 17:46:25 -0000 Delivered-To: apmail-accumulo-user-archive@accumulo.apache.org Received: (qmail 25133 invoked by uid 500); 4 Dec 2012 17:46:25 -0000 Mailing-List: contact user-help@accumulo.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@accumulo.apache.org Delivered-To: mailing list user@accumulo.apache.org Received: (qmail 25124 invoked by uid 99); 4 Dec 2012 17:46:25 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 04 Dec 2012 17:46:25 +0000 X-ASF-Spam-Status: No, hits=-0.7 required=5.0 tests=RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of josh.elser@gmail.com designates 209.85.216.41 as permitted sender) Received: from [209.85.216.41] (HELO mail-qa0-f41.google.com) (209.85.216.41) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 04 Dec 2012 17:46:17 +0000 Received: by mail-qa0-f41.google.com with SMTP id o19so1358648qap.0 for ; Tue, 04 Dec 2012 09:45:56 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:subject:references :in-reply-to:content-type:content-transfer-encoding; bh=t42dy6N9Ak37XX7ERmpnbllT/TLK7WnfwYbmKAH+X6c=; b=gclUK34cMcq8OrB9bbuxbwCqEsGvtfdvh+MaohIFpLyOuR0S0SOrfFoL5zYPj54ePQ gnyvNt492ojPRg/9V2RimutDWmJVo9xn7WIYeU+cjxKmbBOJmlMWpFKxL9nRd0AS2Brf rGJuLVeQWbXslf9xnRSXZ75rs51Znsv4c2l1fMzKX63ifMnfL5g3P+HRAIM4qGAPOmqx GyixlGdj1nXxZ4dNYg3zaSnhigofE0LzHWhSZcfSCAzSCegoi9zSNptxhVYyvdOz4GGR aVlaOXHFbLoSA7Vn6BlkBujbTPCH3wSbCZ+3moNyEAsDY3y02EWlp9G40zwosbpnquNr iSbA== Received: by 10.49.127.101 with SMTP id nf5mr5012819qeb.20.1354643156625; Tue, 04 Dec 2012 09:45:56 -0800 (PST) Received: from [144.51.26.21] (rd6um-34105l.tycho.ncsc.mil. [144.51.26.21]) by mx.google.com with ESMTPS id eq10sm1325900qab.0.2012.12.04.09.45.55 (version=SSLv3 cipher=OTHER); Tue, 04 Dec 2012 09:45:56 -0800 (PST) Message-ID: <50BE36D3.9020602@gmail.com> Date: Tue, 04 Dec 2012 12:45:55 -0500 From: Josh Elser User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:17.0) Gecko/17.0 Thunderbird/17.0 MIME-Version: 1.0 To: user@accumulo.apache.org Subject: Re: Record index within a Table References: <50BD5A38.5080505@playstation.sony.com> <50BD6042.4050708@gmail.com> In-Reply-To: <50BD6042.4050708@gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Checked: Checked by ClamAV on apache.org I was thinking a little more on the subject, and convinced myself that I was wrong. Since many files on disk correspond to a tablet, the best you can get is the index of a key-value pair in a given file for a tablet. To get a sorted stream of key-value pairs for this tablet (to compute index offset for a key in a tablet), a merged read is performed over all of those files. Local key offset for a file is meaningless as it does not imply the correct offset for a tablet. On 12/3/12 9:30 PM, Josh Elser wrote: > > Accumulo doesn't expose any internal offsets of Key-Value pairs > through the API. While it might be able to extrapolate some of this > knowledge from the underlying structure of Accumulo, that isn't the > intent of what Accumulo is trying to provide. >