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 0634818E6F for ; Tue, 14 Jul 2015 06:58:08 +0000 (UTC) Received: (qmail 80161 invoked by uid 500); 14 Jul 2015 06:58:07 -0000 Delivered-To: apmail-hadoop-hdfs-issues-archive@hadoop.apache.org Received: (qmail 80115 invoked by uid 500); 14 Jul 2015 06:58:07 -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 80099 invoked by uid 99); 14 Jul 2015 06:58:07 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 14 Jul 2015 06:58:07 +0000 Date: Tue, 14 Jul 2015 06:58:07 +0000 (UTC) From: "Vinayakumar B (JIRA)" To: hdfs-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Assigned] (HDFS-8578) On upgrade, Datanode should process all storage/data dirs in parallel 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-8578?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Vinayakumar B reassigned HDFS-8578: ----------------------------------- Assignee: Vinayakumar B > On upgrade, Datanode should process all storage/data dirs in parallel > --------------------------------------------------------------------- > > Key: HDFS-8578 > URL: https://issues.apache.org/jira/browse/HDFS-8578 > Project: Hadoop HDFS > Issue Type: Improvement > Components: datanode > Reporter: Raju Bairishetti > Assignee: Vinayakumar B > Priority: Critical > Attachments: HDFS-8578-01.patch, HDFS-8578-02.patch, HDFS-8578-03.patch, HDFS-8578-04.patch, HDFS-8578-05.patch, HDFS-8578-06.patch, HDFS-8578-branch-2.6.0.patch > > > Right now, during upgrades datanode is processing all the storage dirs sequentially. Assume it takes ~20 mins to process a single storage dir then datanode which has ~10 disks will take around 3hours to come up. > *BlockPoolSliceStorage.java* > {code} > for (int idx = 0; idx < getNumStorageDirs(); idx++) { > doTransition(datanode, getStorageDir(idx), nsInfo, startOpt); > assert getCTime() == nsInfo.getCTime() > : "Data-node and name-node CTimes must be the same."; > } > {code} > It would save lots of time during major upgrades if datanode process all storagedirs/disks parallelly. > Can we make datanode to process all storage dirs parallelly? -- This message was sent by Atlassian JIRA (v6.3.4#6332)