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 6CE60200B64 for ; Mon, 18 Jul 2016 22:00:24 +0200 (CEST) Received: by cust-asf.ponee.io (Postfix) id 6AC81160A88; Mon, 18 Jul 2016 20:00:24 +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 BAFB4160A65 for ; Mon, 18 Jul 2016 22:00:23 +0200 (CEST) Received: (qmail 28867 invoked by uid 500); 18 Jul 2016 20:00:22 -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 28818 invoked by uid 99); 18 Jul 2016 20:00:22 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 18 Jul 2016 20:00:22 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id 8FED92C0370 for ; Mon, 18 Jul 2016 20:00:22 +0000 (UTC) Date: Mon, 18 Jul 2016 20:00:22 +0000 (UTC) From: "Vinitha Reddy Gankidi (JIRA)" To: hdfs-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HDFS-10301) BlockReport retransmissions may lead to storages falsely being declared zombie if storage report processing happens out of order MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Mon, 18 Jul 2016 20:00:24 -0000 [ https://issues.apache.org/jira/browse/HDFS-10301?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Vinitha Reddy Gankidi updated HDFS-10301: ----------------------------------------- Attachment: HDFS-10301.009.patch > BlockReport retransmissions may lead to storages falsely being declared zombie if storage report processing happens out of order > -------------------------------------------------------------------------------------------------------------------------------- > > Key: HDFS-10301 > URL: https://issues.apache.org/jira/browse/HDFS-10301 > Project: Hadoop HDFS > Issue Type: Bug > Components: namenode > Affects Versions: 2.6.1 > Reporter: Konstantin Shvachko > Assignee: Vinitha Reddy Gankidi > Priority: Critical > Attachments: HDFS-10301.002.patch, HDFS-10301.003.patch, HDFS-10301.004.patch, HDFS-10301.005.patch, HDFS-10301.006.patch, HDFS-10301.007.patch, HDFS-10301.008.patch, HDFS-10301.009.patch, HDFS-10301.01.patch, HDFS-10301.sample.patch, zombieStorageLogs.rtf > > > When NameNode is busy a DataNode can timeout sending a block report. Then it sends the block report again. Then NameNode while process these two reports at the same time can interleave processing storages from different reports. This screws up the blockReportId field, which makes NameNode think that some storages are zombie. Replicas from zombie storages are immediately removed, causing missing blocks. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscribe@hadoop.apache.org For additional commands, e-mail: hdfs-issues-help@hadoop.apache.org