From issues-return-91637-archive-asf-public=cust-asf.ponee.io@ignite.apache.org Fri Feb 15 14:21:05 2019 Return-Path: X-Original-To: archive-asf-public@cust-asf.ponee.io Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by mx-eu-01.ponee.io (Postfix) with SMTP id 8D2D6180763 for ; Fri, 15 Feb 2019 15:21:04 +0100 (CET) Received: (qmail 90231 invoked by uid 500); 15 Feb 2019 14:21:03 -0000 Mailing-List: contact issues-help@ignite.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@ignite.apache.org Delivered-To: mailing list issues@ignite.apache.org Received: (qmail 90210 invoked by uid 99); 15 Feb 2019 14:21:03 -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; Fri, 15 Feb 2019 14:21:03 +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 54C2AC1632 for ; Fri, 15 Feb 2019 14:21:03 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd1-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -110.301 X-Spam-Level: X-Spam-Status: No, score=-110.301 tagged_above=-999 required=6.31 tests=[ENV_AND_HDR_SPF_MATCH=-0.5, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, USER_IN_DEF_SPF_WL=-7.5, 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 DrGXBc7PgJzx for ; Fri, 15 Feb 2019 14:21:02 +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 1C0EB5F581 for ; Fri, 15 Feb 2019 14:21:02 +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 3799CE27BE for ; Fri, 15 Feb 2019 14:21:01 +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 88F5D244E7 for ; Fri, 15 Feb 2019 14:21:00 +0000 (UTC) Date: Fri, 15 Feb 2019 14:21:00 +0000 (UTC) From: "Vladimir Ozerov (JIRA)" To: issues@ignite.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Assigned] (IGNITE-9933) SQL: lazy mode isn't used on reduce step 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/IGNITE-9933?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Vladimir Ozerov reassigned IGNITE-9933: --------------------------------------- Assignee: (was: Taras Ledkov) > SQL: lazy mode isn't used on reduce step > ---------------------------------------- > > Key: IGNITE-9933 > URL: https://issues.apache.org/jira/browse/IGNITE-9933 > Project: Ignite > Issue Type: Improvement > Components: sql > Affects Versions: 2.6 > Reporter: Taras Ledkov > Priority: Major > > Lazy execution is introduced as default by IGNITE-9171. > But queries are executed lazy only in map phase now. > So, we have introduce lazy query execution on reduce step when merge table is user to prevent waits for fetch all results on reduce step and excessive allocate memory. > It will be applicable for queries sorted by index. > Attention: when reduce query is executed in lazy mode the release remote resource and query cancellation must be changed. > See: > - {{GridReduceQueryExecutor#query}} > - {{GridReduceQueryExecutor#releaseRemoteResources}} -- This message was sent by Atlassian JIRA (v7.6.3#76005)