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 5A96710920 for ; Fri, 20 Sep 2013 22:07:41 +0000 (UTC) Received: (qmail 59560 invoked by uid 500); 20 Sep 2013 22:07:27 -0000 Delivered-To: apmail-hadoop-hdfs-issues-archive@hadoop.apache.org Received: (qmail 58795 invoked by uid 500); 20 Sep 2013 22:07:05 -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 58344 invoked by uid 99); 20 Sep 2013 22:06:55 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 20 Sep 2013 22:06:55 +0000 Date: Fri, 20 Sep 2013 22:06:55 +0000 (UTC) From: "Arpit Agarwal (JIRA)" To: hdfs-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Resolved] (HDFS-5232) Protocol changes to transmit StorageUuid 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-5232?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Arpit Agarwal resolved HDFS-5232. --------------------------------- Resolution: Fixed Fix Version/s: Heterogeneous Storage (HDFS-2832) Thanks Nicholas! I have committed this to branch HDFS-2832. > Protocol changes to transmit StorageUuid > ---------------------------------------- > > Key: HDFS-5232 > URL: https://issues.apache.org/jira/browse/HDFS-5232 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: datanode, hdfs-client, namenode > Affects Versions: Heterogeneous Storage (HDFS-2832) > Reporter: Arpit Agarwal > Assignee: Arpit Agarwal > Fix For: Heterogeneous Storage (HDFS-2832) > > Attachments: HDFS-5232.01.patch, HDFS-5232.02.patch, HDFS-5232.03.patch > > > Currently the StorageID is used to identify both the Datanode and the storage. This works because we treat all storages attached to the Datanode as a single storage unit. > We plan to replace the StorageID with two independent IDs: > # Datanode UUID - this will be a string that uniquely identifies each Datanode in the cluster. For upgraded clusters, the Datanode UUID will be the StorageID prior to the upgrade. i.e. we will reuse the prior Storage ID. > # Storage UUID - Each storage attached to the datanode will be identified by a UUID. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira