Return-Path: X-Original-To: apmail-hadoop-hdfs-dev-archive@minotaur.apache.org Delivered-To: apmail-hadoop-hdfs-dev-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 862F311A8C for ; Fri, 29 Aug 2014 19:25:55 +0000 (UTC) Received: (qmail 7305 invoked by uid 500); 29 Aug 2014 19:25:54 -0000 Delivered-To: apmail-hadoop-hdfs-dev-archive@hadoop.apache.org Received: (qmail 7189 invoked by uid 500); 29 Aug 2014 19:25:54 -0000 Mailing-List: contact hdfs-dev-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hdfs-dev@hadoop.apache.org Delivered-To: mailing list hdfs-dev@hadoop.apache.org Received: (qmail 7149 invoked by uid 99); 29 Aug 2014 19:25:54 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 29 Aug 2014 19:25:54 +0000 Date: Fri, 29 Aug 2014 19:25:53 +0000 (UTC) From: "Arpit Agarwal (JIRA)" To: hdfs-dev@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Created] (HDFS-6975) Consider removing heavyweight synchronization for FsDatasetImpl operations MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 Arpit Agarwal created HDFS-6975: ----------------------------------- Summary: Consider removing heavyweight synchronization for FsDatasetImpl operations Key: HDFS-6975 URL: https://issues.apache.org/jira/browse/HDFS-6975 Project: Hadoop HDFS Issue Type: Bug Components: datanode Reporter: Arpit Agarwal Post HDFS-6482, I think we can remove the requirement for most operations to synchronize on the FsDatasetImpl object lock. Especially filesystem operations need not synchronize since block file locations are going to be deterministic. Jira to investigate this more rigorously. -- This message was sent by Atlassian JIRA (v6.2#6252)