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 0093F200C8B for ; Mon, 22 May 2017 20:17:13 +0200 (CEST) Received: by cust-asf.ponee.io (Postfix) id F3646160BBF; Mon, 22 May 2017 18:17:12 +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 4658D160BAD for ; Mon, 22 May 2017 20:17:12 +0200 (CEST) Received: (qmail 22148 invoked by uid 500); 22 May 2017 18:17:11 -0000 Mailing-List: contact dev-help@hbase.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@hbase.apache.org Delivered-To: mailing list dev@hbase.apache.org Received: (qmail 22137 invoked by uid 99); 22 May 2017 18:17:11 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd2-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 22 May 2017 18:17:11 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd2-us-west.apache.org (ASF Mail Server at spamd2-us-west.apache.org) with ESMTP id D73721A077F for ; Mon, 22 May 2017 18:17:10 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd2-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -100.002 X-Spam-Level: X-Spam-Status: No, score=-100.002 tagged_above=-999 required=6.31 tests=[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 (spamd2-us-west.apache.org [10.40.0.9]) (amavisd-new, port 10024) with ESMTP id jTTqD7H-YNXN for ; Mon, 22 May 2017 18:17:10 +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 2E02A5F20C for ; Mon, 22 May 2017 18:17:10 +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 79A7EE073A for ; Mon, 22 May 2017 18:17:04 +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 3301F21B56 for ; Mon, 22 May 2017 18:17:04 +0000 (UTC) Date: Mon, 22 May 2017 18:17:04 +0000 (UTC) From: "Mikhail Antonov (JIRA)" To: dev@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Created] (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: Mon, 22 May 2017 18:17:13 -0000 Mikhail Antonov created HBASE-18090: --------------------------------------- Summary: 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 Affects Versions: 1.4.0 Reporter: Mikhail Antonov 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 (v6.3.15#6346)