Return-Path: X-Original-To: apmail-hbase-user-archive@www.apache.org Delivered-To: apmail-hbase-user-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 6D22E10234 for ; Fri, 23 Aug 2013 03:01:49 +0000 (UTC) Received: (qmail 96047 invoked by uid 500); 23 Aug 2013 03:01:47 -0000 Delivered-To: apmail-hbase-user-archive@hbase.apache.org Received: (qmail 95741 invoked by uid 500); 23 Aug 2013 03:01:45 -0000 Mailing-List: contact user-help@hbase.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@hbase.apache.org Delivered-To: mailing list user@hbase.apache.org Received: (qmail 95733 invoked by uid 99); 23 Aug 2013 03:01:45 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 23 Aug 2013 03:01:45 +0000 X-ASF-Spam-Status: No, hits=1.5 required=5.0 tests=HTML_MESSAGE,RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of liuxionghust@gmail.com designates 209.85.212.41 as permitted sender) Received: from [209.85.212.41] (HELO mail-vb0-f41.google.com) (209.85.212.41) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 23 Aug 2013 03:01:38 +0000 Received: by mail-vb0-f41.google.com with SMTP id g17so69776vbg.14 for ; Thu, 22 Aug 2013 20:01:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:from:date:message-id:subject:to:content-type; bh=El/lHTBGSCus9Jy3IZ4jVXLKaiSTGOv0qpig6Hcxe5o=; b=oLuujnuUfuKanJq5jBtJMl4vdqaMH+h06hWVsO+z7+C4r7Pfj3ULwDXOx+ybyqOgQZ 4iuljoPwGgNLIExfIzxz4dU3LgeoXOFjR9ei3X0lYoWYOUPvJkeYdcOp8xm945JCWVo8 oeDRhu2ecsb90hsPIwphTXfdXFzWZIgx2oj+t4HzMceygehKFDOZUk2IoBb9uDszl2TV y/CjrRLrcivrvhRsoqfCdulubiT4LNq2ISgQ2RqTUqKocS5JGXkJSIfLWT7mICcMUYra Iif6O0mdYXWst6lkn/OViSKJ//KirzyGWhq6sgYaNfPi7t260mTC8pOMqyKaAsAsmKbK XdJw== X-Received: by 10.220.145.132 with SMTP id d4mr14260365vcv.9.1377226877650; Thu, 22 Aug 2013 20:01:17 -0700 (PDT) MIME-Version: 1.0 Received: by 10.52.180.40 with HTTP; Thu, 22 Aug 2013 20:00:57 -0700 (PDT) From: Xiong LIU Date: Fri, 23 Aug 2013 11:00:57 +0800 Message-ID: Subject: Is downgrade from 0.96.0 to 0.94.6 possible? To: user@hbase.apache.org Content-Type: multipart/alternative; boundary=047d7b34347cd14d2304e4949e92 X-Virus-Checked: Checked by ClamAV on apache.org --047d7b34347cd14d2304e4949e92 Content-Type: text/plain; charset=ISO-8859-1 We are considering to upgrade our hbase cluster from version 0.94.6 to 0.96.0 once 0.96.0 is out. I want to know whether any possible failure may happen during the upgrade progress, and if it does happen, is it possible to downgrade to 0.94.6? Is there any best practice of upgrading 0.94.x to 0.96.0? Many thanks. ---------------------------- Best Wishes --047d7b34347cd14d2304e4949e92--