Return-Path: Delivered-To: apmail-hadoop-hbase-dev-archive@minotaur.apache.org Received: (qmail 45289 invoked from network); 16 Apr 2010 18:16:47 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 16 Apr 2010 18:16:47 -0000 Received: (qmail 11090 invoked by uid 500); 16 Apr 2010 18:16:47 -0000 Delivered-To: apmail-hadoop-hbase-dev-archive@hadoop.apache.org Received: (qmail 11067 invoked by uid 500); 16 Apr 2010 18:16:47 -0000 Mailing-List: contact hbase-dev-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hbase-dev@hadoop.apache.org Delivered-To: mailing list hbase-dev@hadoop.apache.org Received: (qmail 11059 invoked by uid 99); 16 Apr 2010 18:16:47 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 16 Apr 2010 18:16:47 +0000 X-ASF-Spam-Status: No, hits=-1301.4 required=10.0 tests=ALL_TRUSTED,AWL X-Spam-Check-By: apache.org Received: from [140.211.11.22] (HELO thor.apache.org) (140.211.11.22) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 16 Apr 2010 18:16:46 +0000 Received: from thor (localhost [127.0.0.1]) by thor.apache.org (8.13.8+Sun/8.13.8) with ESMTP id o3GIGPOa006094 for ; Fri, 16 Apr 2010 14:16:25 -0400 (EDT) Message-ID: <22712642.14651271441785538.JavaMail.jira@thor> Date: Fri, 16 Apr 2010 14:16:25 -0400 (EDT) From: "Jonathan Gray (JIRA)" To: hbase-dev@hadoop.apache.org Subject: [jira] Created: (HBASE-2459) Use finer-grain locking in HConnectionManager MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 Use finer-grain locking in HConnectionManager --------------------------------------------- Key: HBASE-2459 URL: https://issues.apache.org/jira/browse/HBASE-2459 Project: Hadoop HBase Issue Type: Improvement Components: client Reporter: Jonathan Gray Priority: Critical Fix For: 0.20.5, 0.21.0 Currently we synchronize within HConnectionManager.locateRegionInMeta() when looking up the cached location (and querying meta if not cached). We use the same lock for every user-space region. We really only need per-region synchronization here. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://issues.apache.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira