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 C191B18135 for ; Fri, 16 Oct 2015 17:23:05 +0000 (UTC) Received: (qmail 25991 invoked by uid 500); 16 Oct 2015 17:23:05 -0000 Delivered-To: apmail-hadoop-hdfs-issues-archive@hadoop.apache.org Received: (qmail 25929 invoked by uid 500); 16 Oct 2015 17:23:05 -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 25914 invoked by uid 99); 16 Oct 2015 17:23:05 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 16 Oct 2015 17:23:05 +0000 Date: Fri, 16 Oct 2015 17:23:05 +0000 (UTC) From: "Staffan Friberg (JIRA)" To: hdfs-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HDFS-9260) Improve performance and GC friendliness of startup and FBRs 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-9260?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Staffan Friberg updated HDFS-9260: ---------------------------------- Attachment: (was: HDFS Block and Replica Management 20151013.pdf) > Improve performance and GC friendliness of startup and FBRs > ----------------------------------------------------------- > > Key: HDFS-9260 > URL: https://issues.apache.org/jira/browse/HDFS-9260 > Project: Hadoop HDFS > Issue Type: Improvement > Components: datanode, namenode, performance > Affects Versions: 2.7.1 > Reporter: Staffan Friberg > Attachments: HDFS Block and Replica Management 20151013.pdf, HDFS-7435.001.patch > > > This patch changes the datastructures used for BlockInfos and Replicas to keep them sorted. This allows faster and more GC friendly handling of full block reports. > Would like to hear peoples feedback on this change and also some help investigating/understanding a few outstanding issues if we are interested in moving forward with this. > There seems to be some timing issues I hit when testing the patch, not sure if it is a bug in the patch or something else (most likely the earlier)... > Tests that fail for me: > The issues seems to be that the blocks is not on any storage, so no replication can occurs causing the tests to fail in different ways. > TestDecomission.testDecommision > If I add a little sleep after the cleanup/delete things seem to work > TestDFSStripedOutputStreamWithFailure > A couple of tests fails in this class. -- This message was sent by Atlassian JIRA (v6.3.4#6332)