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 EBA49101AE for ; Sun, 26 Jan 2014 22:37:54 +0000 (UTC) Received: (qmail 72470 invoked by uid 500); 26 Jan 2014 22:37:46 -0000 Delivered-To: apmail-hbase-issues-archive@hbase.apache.org Received: (qmail 72446 invoked by uid 500); 26 Jan 2014 22:37:44 -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 72360 invoked by uid 99); 26 Jan 2014 22:37:39 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Sun, 26 Jan 2014 22:37:39 +0000 Date: Sun, 26 Jan 2014 22:37:39 +0000 (UTC) From: "stack (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Resolved] (HBASE-3504) HLog performance improvement 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-3504?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] stack resolved HBASE-3504. -------------------------- Resolution: Won't Fix There is no update lock any more in trunk, the focus of this issue. > HLog performance improvement > ---------------------------- > > Key: HBASE-3504 > URL: https://issues.apache.org/jira/browse/HBASE-3504 > Project: HBase > Issue Type: Improvement > Components: regionserver > Reporter: dhruba borthakur > Assignee: dhruba borthakur > > The HLog.updateLock protects the rolling of logs with concurrent writes to the HDFS log file. This is a scalability bottleneck for a workload that comprises mostly of counter-increments. -- This message was sent by Atlassian JIRA (v6.1.5#6160)