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 19EB7DB2F for ; Wed, 1 Aug 2012 22:36:04 +0000 (UTC) Received: (qmail 50035 invoked by uid 500); 1 Aug 2012 22:36:04 -0000 Delivered-To: apmail-hbase-issues-archive@hbase.apache.org Received: (qmail 49907 invoked by uid 500); 1 Aug 2012 22:36:03 -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 49877 invoked by uid 99); 1 Aug 2012 22:36:03 -0000 Received: from issues-vm.apache.org (HELO issues-vm) (140.211.11.160) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 01 Aug 2012 22:36:03 +0000 Received: from isssues-vm.apache.org (localhost [127.0.0.1]) by issues-vm (Postfix) with ESMTP id 75A5B14285A for ; Wed, 1 Aug 2012 22:36:03 +0000 (UTC) Date: Wed, 1 Aug 2012 22:36:03 +0000 (UTC) From: "Lars Hofhansl (JIRA)" To: issues@hbase.apache.org Message-ID: <1032424675.2662.1343860563488.JavaMail.jiratomcat@issues-vm> In-Reply-To: <773839303.37111.1336439148271.JavaMail.tomcat@hel.zones.apache.org> Subject: [jira] [Commented] (HBASE-5954) Allow proper fsync support for HBase 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-5954?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13426966#comment-13426966 ] Lars Hofhansl commented on HBASE-5954: -------------------------------------- Sigh... The WAL files would still need to be sync'ed upon blockclose. Since they mix data from different stores, there's no telling ahead of time. Which leads to: # global hsync option upon close block for HFiles and Hlogs (makes no sense to sync HLogs but not HFiles or vice versa) # global WAL edit hsync option # hsync CF's WAL edits # WAL hsync per Put/Delete/Append/Increment/etc > Allow proper fsync support for HBase > ------------------------------------ > > Key: HBASE-5954 > URL: https://issues.apache.org/jira/browse/HBASE-5954 > Project: HBase > Issue Type: Improvement > Reporter: Lars Hofhansl > Assignee: Lars Hofhansl > Fix For: 0.96.0, 0.94.2 > > Attachments: 5954-trunk-hdfs-trunk-v2.txt, 5954-trunk-hdfs-trunk-v3.txt, 5954-trunk-hdfs-trunk-v4.txt, 5954-trunk-hdfs-trunk-v5.txt, 5954-trunk-hdfs-trunk-v6.txt, 5954-trunk-hdfs-trunk.txt, hbase-hdfs-744.txt > > -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira