From yarn-issues-return-154666-archive-asf-public=cust-asf.ponee.io@hadoop.apache.org Sun Oct 7 11:21:05 2018 Return-Path: X-Original-To: archive-asf-public@cust-asf.ponee.io Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by mx-eu-01.ponee.io (Postfix) with SMTP id 53DD118064E for ; Sun, 7 Oct 2018 11:21:05 +0200 (CEST) Received: (qmail 36288 invoked by uid 500); 7 Oct 2018 09:21:04 -0000 Mailing-List: contact yarn-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list yarn-issues@hadoop.apache.org Received: (qmail 36277 invoked by uid 99); 7 Oct 2018 09:21:04 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd2-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Sun, 07 Oct 2018 09:21:04 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd2-us-west.apache.org (ASF Mail Server at spamd2-us-west.apache.org) with ESMTP id 005B21A0EB8 for ; Sun, 7 Oct 2018 09:21:04 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd2-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -109.501 X-Spam-Level: X-Spam-Status: No, score=-109.501 tagged_above=-999 required=6.31 tests=[ENV_AND_HDR_SPF_MATCH=-0.5, KAM_ASCII_DIVIDERS=0.8, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, USER_IN_DEF_SPF_WL=-7.5, USER_IN_WHITELIST=-100] autolearn=disabled Received: from mx1-lw-eu.apache.org ([10.40.0.8]) by localhost (spamd2-us-west.apache.org [10.40.0.9]) (amavisd-new, port 10024) with ESMTP id RGQtHU0JHpAK for ; Sun, 7 Oct 2018 09:21:03 +0000 (UTC) Received: from mailrelay1-us-west.apache.org (mailrelay1-us-west.apache.org [209.188.14.139]) by mx1-lw-eu.apache.org (ASF Mail Server at mx1-lw-eu.apache.org) with ESMTP id 64E075F514 for ; Sun, 7 Oct 2018 09:21:02 +0000 (UTC) Received: from jira-lw-us.apache.org (unknown [207.244.88.139]) by mailrelay1-us-west.apache.org (ASF Mail Server at mailrelay1-us-west.apache.org) with ESMTP id 5F8B5E0177 for ; Sun, 7 Oct 2018 09:21:01 +0000 (UTC) Received: from jira-lw-us.apache.org (localhost [127.0.0.1]) by jira-lw-us.apache.org (ASF Mail Server at jira-lw-us.apache.org) with ESMTP id 6644B247C7 for ; Sun, 7 Oct 2018 09:21:00 +0000 (UTC) Date: Sun, 7 Oct 2018 09:21:00 +0000 (UTC) From: "Abhishek Modi (JIRA)" To: yarn-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (YARN-3841) [Storage implementation] Adding retry semantics to HDFS backing storage 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:all-tabpanel ] Abhishek Modi updated YARN-3841: -------------------------------- Attachment: YARN-3841.006.patch > [Storage implementation] Adding retry semantics to HDFS backing storage > ----------------------------------------------------------------------- > > 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: Abhishek Modi > Priority: Major > Labels: YARN-5355 > Attachments: YARN-3841-YARN-7055.002.patch, YARN-3841.001.patch, YARN-3841.002.patch, YARN-3841.003.patch, YARN-3841.004.patch, YARN-3841.005.patch, YARN-3841.006.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 (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscribe@hadoop.apache.org For additional commands, e-mail: yarn-issues-help@hadoop.apache.org