Return-Path: X-Original-To: apmail-hadoop-hdfs-issues-archive@minotaur.apache.org Delivered-To: apmail-hadoop-hdfs-issues-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 7DFC417786 for ; Sun, 2 Nov 2014 15:16:35 +0000 (UTC) Received: (qmail 63318 invoked by uid 500); 2 Nov 2014 15:16:35 -0000 Delivered-To: apmail-hadoop-hdfs-issues-archive@hadoop.apache.org Received: (qmail 63267 invoked by uid 500); 2 Nov 2014 15:16:35 -0000 Mailing-List: contact hdfs-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hdfs-issues@hadoop.apache.org Delivered-To: mailing list hdfs-issues@hadoop.apache.org Received: (qmail 63255 invoked by uid 99); 2 Nov 2014 15:16:35 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Sun, 02 Nov 2014 15:16:35 +0000 Date: Sun, 2 Nov 2014 15:16:35 +0000 (UTC) From: "Hudson (JIRA)" To: hdfs-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HDFS-7276) Limit the number of byte arrays used by DFSOutputStream 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/HDFS-7276?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14193866#comment-14193866 ] Hudson commented on HDFS-7276: ------------------------------ FAILURE: Integrated in Hadoop-Mapreduce-trunk #1945 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1945/]) HDFS-7276. Limit the number of byte arrays used by DFSOutputStream and provide a mechanism for recycling arrays. (szetszwo: rev 36ccf097a95eae0761de7b657752e4808a86c094) * hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/util/ByteArrayManager.java * hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt * hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSOutputStream.java * hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java * hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/ClientContext.java * hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSClient.java * hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/util/TestByteArrayManager.java > Limit the number of byte arrays used by DFSOutputStream > ------------------------------------------------------- > > Key: HDFS-7276 > URL: https://issues.apache.org/jira/browse/HDFS-7276 > Project: Hadoop HDFS > Issue Type: Improvement > Components: hdfs-client > Reporter: Tsz Wo Nicholas Sze > Assignee: Tsz Wo Nicholas Sze > Fix For: 2.6.0 > > Attachments: h7276_20141021.patch, h7276_20141022.patch, h7276_20141023.patch, h7276_20141024.patch, h7276_20141027.patch, h7276_20141027b.patch, h7276_20141028.patch, h7276_20141029.patch, h7276_20141029b.patch, h7276_20141030.patch, h7276_20141031.patch > > > When there are a lot of DFSOutputStream's writing concurrently, the number of outstanding packets could be large. The byte arrays created by those packets could occupy a lot of memory. -- This message was sent by Atlassian JIRA (v6.3.4#6332)