From issues-return-39542-archive-asf-public=cust-asf.ponee.io@tez.apache.org Thu Aug 2 02:20:03 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 112F0180634 for ; Thu, 2 Aug 2018 02:20:02 +0200 (CEST) Received: (qmail 82848 invoked by uid 500); 2 Aug 2018 00:20:02 -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 82805 invoked by uid 99); 2 Aug 2018 00:20:02 -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; Thu, 02 Aug 2018 00:20:02 +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 C99EDC2226 for ; Thu, 2 Aug 2018 00:20:01 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd1-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -109.501 X-Spam-Level: X-Spam-Status: No, score=-109.501 tagged_above=-999 required=6.31 tests=[ENV_AND_HDR_SPF_MATCH=-0.5, KAM_ASCII_DIVIDERS=0.8, 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 xsuElnHq4WxM for ; Thu, 2 Aug 2018 00:20:01 +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 03CF75F29A for ; Thu, 2 Aug 2018 00:20:01 +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 7C1BFE01C2 for ; Thu, 2 Aug 2018 00:20:00 +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 2985627756 for ; Thu, 2 Aug 2018 00:20:00 +0000 (UTC) Date: Thu, 2 Aug 2018 00:20:00 +0000 (UTC) From: "Jaume M (JIRA)" To: issues@tez.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (TEZ-3958) Add internal vertex priority information into the tez dag.dot debug information 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/TEZ-3958?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jaume M updated TEZ-3958: ------------------------- Attachment: (was: TEZ-3958.3.patch) > Add internal vertex priority information into the tez dag.dot debug information > ------------------------------------------------------------------------------- > > Key: TEZ-3958 > URL: https://issues.apache.org/jira/browse/TEZ-3958 > Project: Apache Tez > Issue Type: Improvement > Reporter: Gopal V > Assignee: Jaume M > Priority: Major > Attachments: TEZ-3958.1.patch, TEZ-3958.2.patch, TEZ-3958.3.patch > > > Adding the actual vertex priority as computed by Tez into the debug dag.dot file would allows the debugging of task pre-emption issues when the DAG is no longer a tree. > There are pre-emption issues with isomerization of Tez DAGs, where the a R-isomer dag with mirror rotation runs at a different speed than the L-isomer dag, due to priorities at the same level changing due to the vertex-id order. > Since the problem is hard to debug through, it would be good to record the computed priority in the DAG .dot file in the logging directories. -- This message was sent by Atlassian JIRA (v7.6.3#76005)