Return-Path: X-Original-To: archive-asf-public-internal@cust-asf2.ponee.io Delivered-To: archive-asf-public-internal@cust-asf2.ponee.io Received: from cust-asf.ponee.io (cust-asf.ponee.io [163.172.22.183]) by cust-asf2.ponee.io (Postfix) with ESMTP id 1E64F200D45 for ; Thu, 9 Nov 2017 06:30:07 +0100 (CET) Received: by cust-asf.ponee.io (Postfix) id 1D06D160C01; Thu, 9 Nov 2017 05:30:07 +0000 (UTC) Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by cust-asf.ponee.io (Postfix) with SMTP id 613C8160BDA for ; Thu, 9 Nov 2017 06:30:06 +0100 (CET) Received: (qmail 4400 invoked by uid 500); 9 Nov 2017 05:30:05 -0000 Mailing-List: contact issues-help@hbase.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list issues@hbase.apache.org Received: (qmail 4389 invoked by uid 99); 9 Nov 2017 05:30:05 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd1-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 09 Nov 2017 05:30:05 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd1-us-west.apache.org (ASF Mail Server at spamd1-us-west.apache.org) with ESMTP id A529ED3A7B for ; Thu, 9 Nov 2017 05:30:04 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd1-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -99.202 X-Spam-Level: X-Spam-Status: No, score=-99.202 tagged_above=-999 required=6.31 tests=[KAM_ASCII_DIVIDERS=0.8, RP_MATCHES_RCVD=-0.001, SPF_PASS=-0.001, USER_IN_WHITELIST=-100] autolearn=disabled Received: from mx1-lw-us.apache.org ([10.40.0.8]) by localhost (spamd1-us-west.apache.org [10.40.0.7]) (amavisd-new, port 10024) with ESMTP id sjlZYmGzrYQk for ; Thu, 9 Nov 2017 05:30:04 +0000 (UTC) Received: from mailrelay1-us-west.apache.org (mailrelay1-us-west.apache.org [209.188.14.139]) by mx1-lw-us.apache.org (ASF Mail Server at mx1-lw-us.apache.org) with ESMTP id EC92B61147 for ; Thu, 9 Nov 2017 05:30:03 +0000 (UTC) Received: from jira-lw-us.apache.org (unknown [207.244.88.139]) by mailrelay1-us-west.apache.org (ASF Mail Server at mailrelay1-us-west.apache.org) with ESMTP id 33AB1E0D55 for ; Thu, 9 Nov 2017 05:30:02 +0000 (UTC) Received: from jira-lw-us.apache.org (localhost [127.0.0.1]) by jira-lw-us.apache.org (ASF Mail Server at jira-lw-us.apache.org) with ESMTP id 41A4F2410A for ; Thu, 9 Nov 2017 05:30:01 +0000 (UTC) Date: Thu, 9 Nov 2017 05:30:01 +0000 (UTC) From: "xinxin fan (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HBASE-18090) Improve TableSnapshotInputFormat to allow more multiple mappers per region MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Thu, 09 Nov 2017 05:30:07 -0000 [ https://issues.apache.org/jira/browse/HBASE-18090?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] xinxin fan updated HBASE-18090: ------------------------------- Attachment: (was: HBASE-18090.branch-1.patch) > Improve TableSnapshotInputFormat to allow more multiple mappers per region > -------------------------------------------------------------------------- > > Key: HBASE-18090 > URL: https://issues.apache.org/jira/browse/HBASE-18090 > Project: HBase > Issue Type: Improvement > Components: mapreduce > Reporter: Mikhail Antonov > Assignee: xinxin fan > Fix For: 2.0.0-beta-1 > > Attachments: HBASE-18090-V3-master.patch, HBASE-18090-V4-master.patch, HBASE-18090-V5-master.patch, HBASE-18090-branch-1.3-v1.patch, HBASE-18090-branch-1.3-v2.patch > > > TableSnapshotInputFormat runs one map task per region in the table snapshot. This places unnecessary restriction that the region layout of the original table needs to take the processing resources available to MR job into consideration. Allowing to run multiple mappers per region (assuming reasonably even key distribution) would be useful. -- This message was sent by Atlassian JIRA (v6.4.14#64029)