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 DA8C3200CFC for ; Thu, 14 Sep 2017 00:10:06 +0200 (CEST) Received: by cust-asf.ponee.io (Postfix) id D94F91609CA; Wed, 13 Sep 2017 22:10:06 +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 0AA0A1609CD for ; Thu, 14 Sep 2017 00:10:05 +0200 (CEST) Received: (qmail 1122 invoked by uid 500); 13 Sep 2017 22:10:03 -0000 Mailing-List: contact issues-help@tez.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@tez.apache.org Delivered-To: mailing list issues@tez.apache.org Received: (qmail 1113 invoked by uid 99); 13 Sep 2017 22:10:03 -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; Wed, 13 Sep 2017 22:10:03 +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 035D6C0773 for ; Wed, 13 Sep 2017 22:10:02 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd1-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 (spamd1-us-west.apache.org [10.40.0.7]) (amavisd-new, port 10024) with ESMTP id B3ZnX2XJQ65h for ; Wed, 13 Sep 2017 22:10:02 +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 63A275FBB0 for ; Wed, 13 Sep 2017 22:10:01 +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 9533DE06BF for ; Wed, 13 Sep 2017 22:10:00 +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 5468825383 for ; Wed, 13 Sep 2017 22:10:00 +0000 (UTC) Date: Wed, 13 Sep 2017 22:10:00 +0000 (UTC) From: "Rohini Palaniswamy (JIRA)" To: issues@tez.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (TEZ-3831) Reduce Unordered memory needed for storing empty completed events MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Wed, 13 Sep 2017 22:10:07 -0000 [ https://issues.apache.org/jira/browse/TEZ-3831?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16165368#comment-16165368 ] Rohini Palaniswamy commented on TEZ-3831: ----------------------------------------- +1. Looks good to me > Reduce Unordered memory needed for storing empty completed events > ----------------------------------------------------------------- > > Key: TEZ-3831 > URL: https://issues.apache.org/jira/browse/TEZ-3831 > Project: Apache Tez > Issue Type: Bug > Reporter: Jonathan Eagles > Assignee: Jonathan Eagles > Attachments: Screen Shot 2017-09-13 at 4.55.11 PM.png, TEZ-3831.001.patch > > > the completedInputs blocking queue is used to store inputs for the UnorderedKVReader to consume. With Auto-reduce parallelism enabled and nearly all empty inputs, the reader can't prune the empty events from the blocking queue fast enough to keep up. In my scenario, an OOM occurred. -- This message was sent by Atlassian JIRA (v6.4.14#64029)