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 8FF44200C92 for ; Mon, 12 Jun 2017 23:33:03 +0200 (CEST) Received: by cust-asf.ponee.io (Postfix) id 8E984160BD9; Mon, 12 Jun 2017 21:33:03 +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 D4D5A160BCF for ; Mon, 12 Jun 2017 23:33:02 +0200 (CEST) Received: (qmail 79266 invoked by uid 500); 12 Jun 2017 21:33:02 -0000 Mailing-List: contact issues-help@impala.incubator.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@impala.incubator.apache.org Delivered-To: mailing list issues@impala.incubator.apache.org Received: (qmail 79257 invoked by uid 99); 12 Jun 2017 21:33:02 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd4-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 12 Jun 2017 21:33:02 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd4-us-west.apache.org (ASF Mail Server at spamd4-us-west.apache.org) with ESMTP id B22DAC0118 for ; Mon, 12 Jun 2017 21:33:01 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd4-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 (spamd4-us-west.apache.org [10.40.0.11]) (amavisd-new, port 10024) with ESMTP id RQ2AgSsmb9Zl for ; Mon, 12 Jun 2017 21:33:01 +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 C8FE25FB5C for ; Mon, 12 Jun 2017 21:33:00 +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 59F98E01D8 for ; Mon, 12 Jun 2017 21:33:00 +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 0FCC120DF1 for ; Mon, 12 Jun 2017 21:33:00 +0000 (UTC) Date: Mon, 12 Jun 2017 21:33:00 +0000 (UTC) From: "Tim Armstrong (JIRA)" To: issues@impala.incubator.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Resolved] (IMPALA-753) Parallelize HBase scan MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Mon, 12 Jun 2017 21:33:03 -0000 [ https://issues.apache.org/jira/browse/IMPALA-753?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Tim Armstrong resolved IMPALA-753. ---------------------------------- Resolution: Won't Fix This will be fixed as part of the multi-thread query execution work. > Parallelize HBase scan > ---------------------- > > Key: IMPALA-753 > URL: https://issues.apache.org/jira/browse/IMPALA-753 > Project: IMPALA > Issue Type: Improvement > Components: Backend > Affects Versions: Impala 1.0 > Reporter: Alan Choi > Priority: Minor > > Impala chains all the regions on the same region sever and scan the data using one scan. The lack of parallel scan within the region server makes Impala slower than Hive when scanning HBase table. > Impala can simply parallelize scanning regions within the same region server. -- This message was sent by Atlassian JIRA (v6.4.14#64029)