Return-Path: X-Original-To: apmail-hadoop-yarn-issues-archive@minotaur.apache.org Delivered-To: apmail-hadoop-yarn-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 618A018F61 for ; Wed, 1 Jul 2015 16:41:05 +0000 (UTC) Received: (qmail 37179 invoked by uid 500); 1 Jul 2015 16:41:05 -0000 Delivered-To: apmail-hadoop-yarn-issues-archive@hadoop.apache.org Received: (qmail 37131 invoked by uid 500); 1 Jul 2015 16:41:05 -0000 Mailing-List: contact yarn-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: yarn-issues@hadoop.apache.org Delivered-To: mailing list yarn-issues@hadoop.apache.org Received: (qmail 37113 invoked by uid 99); 1 Jul 2015 16:41:05 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 01 Jul 2015 16:41:05 +0000 Date: Wed, 1 Jul 2015 16:41:04 +0000 (UTC) From: "Hadoop QA (JIRA)" To: yarn-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (YARN-3841) [Storage implementation] Create HDFS backing storage implementation for ATS writes 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/YARN-3841?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14610614#comment-14610614 ] Hadoop QA commented on YARN-3841: --------------------------------- \\ \\ | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || | {color:red}-1{color} | patch | 0m 0s | The patch command could not apply the patch during dryrun. | \\ \\ || Subsystem || Report/Notes || | Patch URL | http://issues.apache.org/jira/secure/attachment/12743115/YARN-3841.001.patch | | Optional Tests | javadoc javac unit findbugs checkstyle | | git revision | trunk / 2ac87df | | Console output | https://builds.apache.org/job/PreCommit-YARN-Build/8408/console | This message was automatically generated. > [Storage implementation] Create HDFS backing storage implementation for ATS writes > ---------------------------------------------------------------------------------- > > Key: YARN-3841 > URL: https://issues.apache.org/jira/browse/YARN-3841 > Project: Hadoop YARN > Issue Type: Sub-task > Components: timelineserver > Reporter: Tsuyoshi Ozawa > Assignee: Tsuyoshi Ozawa > Attachments: YARN-3841.001.patch > > > HDFS backing storage is useful for following scenarios. > 1. For Hadoop clusters which don't run HBase. > 2. For fallback from HBase when HBase cluster is temporary unavailable. Quoting ATS design document of YARN-2928: > {quote} > In the case the HBase > storage is not available, the plugin should buffer the writes temporarily (e.g. HDFS), and flush > them once the storage comes back online. Reading and writing to hdfs as the the backup storage > could potentially use the HDFS writer plugin unless the complexity of generalizing the HDFS > writer plugin for this purpose exceeds the benefits of reusing it here. > {quote} -- This message was sent by Atlassian JIRA (v6.3.4#6332)