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 8C1FB200C8B for ; Mon, 22 May 2017 23:45:09 +0200 (CEST) Received: by cust-asf.ponee.io (Postfix) id 8AAF9160BAD; Mon, 22 May 2017 21:45:09 +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 D17EB160BBF for ; Mon, 22 May 2017 23:45:08 +0200 (CEST) Received: (qmail 20520 invoked by uid 500); 22 May 2017 21:45:07 -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 20233 invoked by uid 99); 22 May 2017 21:45:07 -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 21:45:07 +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 613EF1AA956 for ; Mon, 22 May 2017 21:45:07 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd2-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-eu.apache.org ([10.40.0.8]) by localhost (spamd2-us-west.apache.org [10.40.0.9]) (amavisd-new, port 10024) with ESMTP id jFX_YMdM_rzU for ; Mon, 22 May 2017 21:45:06 +0000 (UTC) Received: from mailrelay1-us-west.apache.org (mailrelay1-us-west.apache.org [209.188.14.139]) by mx1-lw-eu.apache.org (ASF Mail Server at mx1-lw-eu.apache.org) with ESMTP id 18E215FB40 for ; Mon, 22 May 2017 21:45:06 +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 D62EEE0D8F for ; Mon, 22 May 2017 21:45:04 +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 4711521B5C for ; Mon, 22 May 2017 21:45:04 +0000 (UTC) Date: Mon, 22 May 2017 21:45:04 +0000 (UTC) From: "Mikhail Antonov (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: Mon, 22 May 2017 21:45:09 -0000 [ https://issues.apache.org/jira/browse/HBASE-18090?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Mikhail Antonov updated HBASE-18090: ------------------------------------ Status: Patch Available (was: Open) > 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 > Attachments: HBASE-18090-branch-1.3-v1.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 (v6.3.15#6346)