Return-Path: X-Original-To: apmail-hbase-issues-archive@www.apache.org Delivered-To: apmail-hbase-issues-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 23B20175E3 for ; Thu, 23 Oct 2014 20:36:36 +0000 (UTC) Received: (qmail 88722 invoked by uid 500); 23 Oct 2014 20:36:35 -0000 Delivered-To: apmail-hbase-issues-archive@hbase.apache.org Received: (qmail 88682 invoked by uid 500); 23 Oct 2014 20:36:35 -0000 Mailing-List: contact issues-help@hbase.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list issues@hbase.apache.org Received: (qmail 88669 invoked by uid 99); 23 Oct 2014 20:36:35 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 23 Oct 2014 20:36:35 +0000 Date: Thu, 23 Oct 2014 20:36:35 +0000 (UTC) From: "stack (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HBASE-11164) Document and test rolling updates from 0.98 -> 1.0 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/HBASE-11164?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14181911#comment-14181911 ] stack commented on HBASE-11164: ------------------------------- Tried to restart the 0.96 master and got this: {code} 2014-10-23 11:19:32,251 FATAL [master-c2020.halxg.cloudera.com,60000,1414088359278] master.HMaster: Unhandled exception. Starting shutdown. java.lang.NullPointerException at org.apache.hadoop.hbase.util.Bytes.toBytes(Bytes.java:441) at org.apache.hadoop.hbase.zookeeper.ClusterId.setClusterId(ClusterId.java:72) at org.apache.hadoop.hbase.master.HMaster.finishInitialization(HMaster.java:581) at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:433) at java.lang.Thread.run(Thread.java:745) {code} Second time around it worked. On a good note, the branch-1 shell works with 0.96 cluster though it can't 'see' the namespace table. Can scan hbase:meta but not hbase:namespace. Digging. > Document and test rolling updates from 0.98 -> 1.0 > -------------------------------------------------- > > Key: HBASE-11164 > URL: https://issues.apache.org/jira/browse/HBASE-11164 > Project: HBase > Issue Type: Sub-task > Reporter: Enis Soztutar > Assignee: stack > Priority: Critical > Fix For: 0.99.2 > > > I think 1.0 should be rolling upgradable from 0.98 unless we break it intentionally for a specific reason. Unless there is such an issue, lets document that 1.0 and 0.98 should be rolling upgrade compatible. > We should also test this before the 0.99 release. -- This message was sent by Atlassian JIRA (v6.3.4#6332)