From hdfs-issues-return-98045-apmail-hadoop-hdfs-issues-archive=hadoop.apache.org@hadoop.apache.org Wed Oct 1 16:14:42 2014 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 6FB9E1720C for ; Wed, 1 Oct 2014 16:14:42 +0000 (UTC) Received: (qmail 23750 invoked by uid 500); 1 Oct 2014 16:14:41 -0000 Delivered-To: apmail-hadoop-hdfs-issues-archive@hadoop.apache.org Received: (qmail 23663 invoked by uid 500); 1 Oct 2014 16:14:41 -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 23573 invoked by uid 99); 1 Oct 2014 16:14:41 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 01 Oct 2014 16:14:41 +0000 Date: Wed, 1 Oct 2014 16:14:41 +0000 (UTC) From: "Hudson (JIRA)" To: hdfs-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HDFS-6930) Improve replica eviction from RAM disk 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-6930?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14155006#comment-14155006 ] Hudson commented on HDFS-6930: ------------------------------ FAILURE: Integrated in Hadoop-trunk-Commit #6163 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/6163/]) HDFS-6930. Improve replica eviction from RAM disk. (Arpit Agarwal) (arp: rev cb9b485075ce773f2d6189aa2f54bbc69aad4dab) * hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/FsDatasetImpl.java * hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/LazyWriteReplicaTracker.java * hadoop-hdfs-project/hadoop-hdfs/CHANGES-HDFS-6581.txt > Improve replica eviction from RAM disk > -------------------------------------- > > Key: HDFS-6930 > URL: https://issues.apache.org/jira/browse/HDFS-6930 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: datanode > Affects Versions: HDFS-6581 > Reporter: Arpit Agarwal > Assignee: Arpit Agarwal > Fix For: HDFS-6581 > > Attachments: HDFS-6930.01.patch, HDFS-6930.02.patch > > > The current replica eviction scheme is inefficient since it performs multiple file operations in the context of block allocation. > A better implementation would be asynchronous eviction when free space on RAM disk falls below a low watermark to make block allocation faster. -- This message was sent by Atlassian JIRA (v6.3.4#6332)