Return-Path: X-Original-To: apmail-hbase-dev-archive@www.apache.org Delivered-To: apmail-hbase-dev-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 273E5DED8 for ; Sat, 12 Jan 2013 03:27:36 +0000 (UTC) Received: (qmail 12016 invoked by uid 500); 12 Jan 2013 03:27:35 -0000 Delivered-To: apmail-hbase-dev-archive@hbase.apache.org Received: (qmail 11926 invoked by uid 500); 12 Jan 2013 03:27:35 -0000 Mailing-List: contact dev-help@hbase.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@hbase.apache.org Delivered-To: mailing list dev@hbase.apache.org Received: (qmail 11901 invoked by uid 99); 12 Jan 2013 03:27:34 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 12 Jan 2013 03:27:34 +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 (athena.apache.org: domain of yuzhihong@gmail.com designates 74.125.82.47 as permitted sender) Received: from [74.125.82.47] (HELO mail-wg0-f47.google.com) (74.125.82.47) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 12 Jan 2013 03:27:27 +0000 Received: by mail-wg0-f47.google.com with SMTP id dq11so1161740wgb.14 for ; Fri, 11 Jan 2013 19:27:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=oLPrIl+6Lrsbg91HvvHj91Fp3QLX1oFq4LAwbuXbNe8=; b=SccFJ2qXDow1ptRbqtqDszMzXxmL7PO5b7uD5p1NNBcjFF6ABki7KLV6vzojvqQqq2 jtk43S1G7fDH8oXY8QskH8zYJCOT+/N7FyeZntzlbmdt1fU9LMnWd2ohOHhyN6j7LKFp F5Z7RKyGJYI9MXnwYPuKvnXEbSHrynGDSz3Wo2nvc4PNs0jX/PnVuJqFAblklQ4aBUWj uPIeZtJvXutl9aMNS6pHOGXjepq1j+OxMlnHbhyNg4KmP4QWPJpTisDzrd22+ytNK3Nv 5tliGjUih0ODPSCBszmhuKd3RoM8Ef8S21i0lcX0D8P8lgicUaS9wlapk2Xwoox3RYpV wrlA== MIME-Version: 1.0 Received: by 10.194.9.197 with SMTP id c5mr124530918wjb.20.1357961226227; Fri, 11 Jan 2013 19:27:06 -0800 (PST) Received: by 10.216.73.194 with HTTP; Fri, 11 Jan 2013 19:27:06 -0800 (PST) Date: Fri, 11 Jan 2013 19:27:06 -0800 Message-ID: Subject: code review: HBASE-7268 correct local region location cache information can be overwritten w/stale information from an old server From: Ted Yu To: dev@hbase.apache.org Content-Type: multipart/alternative; boundary=047d7b5d4498820dc704d30efc38 X-Virus-Checked: Checked by ClamAV on apache.org --047d7b5d4498820dc704d30efc38 Content-Type: text/plain; charset=ISO-8859-1 Hi, Please take a look at HBASE-7268 where fix for preventing stale location information from overwriting region location cache is proposed. This is an incompatible change - we are introducing a new column in .META. table, tentatively named 'openseqnum'. This column stores the latest sequence Id for the underlying region when region is opened. Please provide your opinion on the approach. Thanks --047d7b5d4498820dc704d30efc38--