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 96721200B8A for ; Sat, 10 Sep 2016 02:23:22 +0200 (CEST) Received: by cust-asf.ponee.io (Postfix) id 950A5160ACE; Sat, 10 Sep 2016 00:23:22 +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 0FB2F160ACA for ; Sat, 10 Sep 2016 02:23:21 +0200 (CEST) Received: (qmail 17128 invoked by uid 500); 10 Sep 2016 00:23:21 -0000 Mailing-List: contact yarn-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list yarn-issues@hadoop.apache.org Received: (qmail 17103 invoked by uid 99); 10 Sep 2016 00:23:20 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 10 Sep 2016 00:23:20 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id C19282C1B80 for ; Sat, 10 Sep 2016 00:23:20 +0000 (UTC) Date: Sat, 10 Sep 2016 00:23:20 +0000 (UTC) From: "Arun Suresh (JIRA)" To: yarn-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (YARN-5630) NM fails to start after downgrade from 2.8 to 2.7 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Sat, 10 Sep 2016 00:23:22 -0000 [ https://issues.apache.org/jira/browse/YARN-5630?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15478765#comment-15478765 ] Arun Suresh commented on YARN-5630: ----------------------------------- Agreed. Another option to maybe consider is have an external script (or maybe even start the NodeManager using a special _--prepare-for-rollback_ arg) which takes a list of allowed keys, iterates through all the entries in the LevenDb store and scrub entries with keys not in the provided list. This also allows us to make the fix in our target (2.8) version. > NM fails to start after downgrade from 2.8 to 2.7 > ------------------------------------------------- > > Key: YARN-5630 > URL: https://issues.apache.org/jira/browse/YARN-5630 > Project: Hadoop YARN > Issue Type: Bug > Components: nodemanager > Reporter: Jason Lowe > Assignee: Jason Lowe > Priority: Blocker > Attachments: YARN-5630.001.patch, YARN-5630.002.patch > > > A downgrade from 2.8 to 2.7 causes nodemanagers to fail to start due to an unrecognized "version" container key on startup. This breaks downgrades from 2.8 to 2.7. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscribe@hadoop.apache.org For additional commands, e-mail: yarn-issues-help@hadoop.apache.org