From issues-return-128431-archive-asf-public=cust-asf.ponee.io@hive.apache.org Thu Jul 12 18:45:04 2018 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 5AD75180789 for ; Thu, 12 Jul 2018 18:45:04 +0200 (CEST) Received: (qmail 33561 invoked by uid 500); 12 Jul 2018 16:45:03 -0000 Mailing-List: contact issues-help@hive.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@hive.apache.org Delivered-To: mailing list issues@hive.apache.org Received: (qmail 33552 invoked by uid 99); 12 Jul 2018 16:45:03 -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; Thu, 12 Jul 2018 16:45:03 +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 23B9FC032B for ; Thu, 12 Jul 2018 16:45:03 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd4-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 (spamd4-us-west.apache.org [10.40.0.11]) (amavisd-new, port 10024) with ESMTP id ZvP7cY6gMlbo for ; Thu, 12 Jul 2018 16:45:02 +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 DCC3C5F4A0 for ; Thu, 12 Jul 2018 16:45:01 +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 1D27CE256B for ; Thu, 12 Jul 2018 16:45:01 +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 758BB23FA6 for ; Thu, 12 Jul 2018 16:45:00 +0000 (UTC) Date: Thu, 12 Jul 2018 16:45:00 +0000 (UTC) From: "Szehon Ho (JIRA)" To: issues@hive.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HIVE-20153) Count and Sum UDF consume more memory in Hive 2+ MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/HIVE-20153?page=3Dcom.atlassia= n.jira.plugin.system.issuetabpanels:all-tabpanel ] Szehon Ho updated HIVE-20153: ----------------------------- Attachment: Screen Shot 2018-07-12 at 6.41.28 PM.png > Count and Sum UDF consume more memory in Hive 2+ > ------------------------------------------------ > > Key: HIVE-20153 > URL: https://issues.apache.org/jira/browse/HIVE-20153 > Project: Hive > Issue Type: Bug > Components: UDF > Affects Versions: 2.3.2 > Reporter: Szehon Ho > Priority: Major > Attachments: Screen Shot 2018-07-12 at 6.41.28 PM.png > > > While playing with Hive2, we noticed that queries with a lot of count() a= nd sum() aggregations run out of memory on Hadoop side much faster than in = Hive1.=C2=A0 In many queries, we have to double the memory. > =C2=A0 > Taking heap dump, we see one of the main culprit is the field 'uniqueObje= cts' in GeneraicUDAFSum and GenericUDAFCount, which was added to support Wi= ndow functions. -- This message was sent by Atlassian JIRA (v7.6.3#76005)