Return-Path: X-Original-To: archive-asf-public-internal@cust-asf2.ponee.io Delivered-To: archive-asf-public-internal@cust-asf2.ponee.io Received: from cust-asf.ponee.io (cust-asf.ponee.io [163.172.22.183]) by cust-asf2.ponee.io (Postfix) with ESMTP id 0DE892004F5 for ; Fri, 11 Aug 2017 10:18:06 +0200 (CEST) Received: by cust-asf.ponee.io (Postfix) id 0A99316BB86; Fri, 11 Aug 2017 08:18:06 +0000 (UTC) Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by cust-asf.ponee.io (Postfix) with SMTP id 529A016BB76 for ; Fri, 11 Aug 2017 10:18:05 +0200 (CEST) Received: (qmail 95242 invoked by uid 500); 11 Aug 2017 08:18:04 -0000 Mailing-List: contact hdfs-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list hdfs-issues@hadoop.apache.org Received: (qmail 94963 invoked by uid 99); 11 Aug 2017 08:18:04 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd4-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 11 Aug 2017 08:18:04 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd4-us-west.apache.org (ASF Mail Server at spamd4-us-west.apache.org) with ESMTP id EBB4EC05FD for ; Fri, 11 Aug 2017 08:18:03 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd4-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -99.202 X-Spam-Level: X-Spam-Status: No, score=-99.202 tagged_above=-999 required=6.31 tests=[KAM_ASCII_DIVIDERS=0.8, RP_MATCHES_RCVD=-0.001, SPF_PASS=-0.001, USER_IN_WHITELIST=-100] autolearn=disabled Received: from mx1-lw-us.apache.org ([10.40.0.8]) by localhost (spamd4-us-west.apache.org [10.40.0.11]) (amavisd-new, port 10024) with ESMTP id cV3AQ1-AKL7A for ; Fri, 11 Aug 2017 08:18:03 +0000 (UTC) Received: from mailrelay1-us-west.apache.org (mailrelay1-us-west.apache.org [209.188.14.139]) by mx1-lw-us.apache.org (ASF Mail Server at mx1-lw-us.apache.org) with ESMTP id 041606112C for ; Fri, 11 Aug 2017 08:18:03 +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 579F9E0E99 for ; Fri, 11 Aug 2017 08:18:02 +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 0FD52241A9 for ; Fri, 11 Aug 2017 08:18:02 +0000 (UTC) Date: Fri, 11 Aug 2017 08:18:02 +0000 (UTC) From: "John Zhuge (JIRA)" To: hdfs-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Comment Edited] (HDFS-11303) Hedged read might hang infinitely if read data from all DN failed MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Fri, 11 Aug 2017 08:18:06 -0000 [ https://issues.apache.org/jira/browse/HDFS-11303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16123015#comment-16123015 ] John Zhuge edited comment on HDFS-11303 at 8/11/17 8:17 AM: ------------------------------------------------------------ Assigned to myself to submit the patch. was (Author: jzhuge): Assigned to me to submit the patch. > Hedged read might hang infinitely if read data from all DN failed > ------------------------------------------------------------------ > > Key: HDFS-11303 > URL: https://issues.apache.org/jira/browse/HDFS-11303 > Project: Hadoop HDFS > Issue Type: Bug > Components: hdfs-client > Affects Versions: 3.0.0-alpha1 > Reporter: Chen Zhang > Assignee: Chen Zhang > Attachments: HDFS-11303-001.patch, HDFS-11303-001.patch, HDFS-11303-002.patch, HDFS-11303-002.patch, HDFS-11303.003.patch, HDFS-11303.004.patch, HDFS-11303.005.patch > > > Hedged read will read from a DN first, if timeout, then read other DNs simultaneously. > If read all DN failed, this bug will cause the future-list not empty(the first timeout request left in list), and hang in the loop infinitely -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscribe@hadoop.apache.org For additional commands, e-mail: hdfs-issues-help@hadoop.apache.org