Return-Path: X-Original-To: apmail-crunch-dev-archive@www.apache.org Delivered-To: apmail-crunch-dev-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 03D9E1744A for ; Mon, 20 Oct 2014 02:45:34 +0000 (UTC) Received: (qmail 94733 invoked by uid 500); 20 Oct 2014 02:45:33 -0000 Delivered-To: apmail-crunch-dev-archive@crunch.apache.org Received: (qmail 94696 invoked by uid 500); 20 Oct 2014 02:45:33 -0000 Mailing-List: contact dev-help@crunch.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@crunch.apache.org Delivered-To: mailing list dev@crunch.apache.org Received: (qmail 94681 invoked by uid 500); 20 Oct 2014 02:45:33 -0000 Delivered-To: apmail-incubator-crunch-dev@incubator.apache.org Received: (qmail 94678 invoked by uid 99); 20 Oct 2014 02:45:33 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 20 Oct 2014 02:45:33 +0000 Date: Mon, 20 Oct 2014 02:45:33 +0000 (UTC) From: "Micah Whitacre (JIRA)" To: crunch-dev@incubator.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (CRUNCH-478) Support TableSnapshotInputFormat MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/CRUNCH-478?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14176547#comment-14176547 ] Micah Whitacre commented on CRUNCH-478: --------------------------------------- I have a bit of the work done for this but need to finish it up and add some tests. Will hopefully get a patch posted this week. > Support TableSnapshotInputFormat > -------------------------------- > > Key: CRUNCH-478 > URL: https://issues.apache.org/jira/browse/CRUNCH-478 > Project: Crunch > Issue Type: Improvement > Components: IO > Reporter: Micah Whitacre > Assignee: Micah Whitacre > > With HBase 0.98, HBase now supports MR over HBase snapshots instead of active tables.[1] This looks to have significant performance impacts. One thing that will be different about this sort of I/O is that we will probably not have "target" support but instead only Source. HBase snapshots do a lot with how the files are stored/tracked such that it wouldn't really make sense to support generating a snapshot. > [1] - https://issues.apache.org/jira/browse/HBASE-8369 -- This message was sent by Atlassian JIRA (v6.3.4#6332)