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 3DDFEF4B3 for ; Fri, 31 May 2013 22:46:22 +0000 (UTC) Received: (qmail 51008 invoked by uid 500); 31 May 2013 22:46:20 -0000 Delivered-To: apmail-hbase-issues-archive@hbase.apache.org Received: (qmail 50946 invoked by uid 500); 31 May 2013 22:46:20 -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 50795 invoked by uid 99); 31 May 2013 22:46:20 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 31 May 2013 22:46:20 +0000 Date: Fri, 31 May 2013 22:46:20 +0000 (UTC) From: "Jesse Yates (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HBASE-8671) Per-region WAL breaks CP backwards compatibility in 0.94 for non-enabled case 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-8671?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jesse Yates updated HBASE-8671: ------------------------------- Fix Version/s: 0.94.9 > Per-region WAL breaks CP backwards compatibility in 0.94 for non-enabled case > ----------------------------------------------------------------------------- > > Key: HBASE-8671 > URL: https://issues.apache.org/jira/browse/HBASE-8671 > Project: HBase > Issue Type: Bug > Reporter: Jesse Yates > Assignee: Jesse Yates > Fix For: 0.94.9 > > Attachments: hbase-8671-v0.patch > > > Moving from a single WAL to the possibility of multiple WALs, the method signature in RegionServerServices became: > {code} > /** @return the HLog for a particular region. Pass null for getting the > * default (common) WAL */ > public HLog getWAL(HRegionInfo regionInfo) throws IOException; > {code} > However, CPs that previously needed access to the WAL would just call: > {code} > RegionServerServices.getWAL(); > {code} > Which is equivalent to calling: > {code} > RegionServerServices.getWAL(null); > {code} > but which requires a code change, recompilation, and possibly an additional compatibility layer for _different versions of 0.94_... not a great situation. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira