Return-Path: X-Original-To: apmail-incubator-ambari-commits-archive@minotaur.apache.org Delivered-To: apmail-incubator-ambari-commits-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 0B577DC3C for ; Sat, 12 Jan 2013 03:37:40 +0000 (UTC) Received: (qmail 29237 invoked by uid 500); 12 Jan 2013 03:37:39 -0000 Delivered-To: apmail-incubator-ambari-commits-archive@incubator.apache.org Received: (qmail 29145 invoked by uid 500); 12 Jan 2013 03:37:38 -0000 Mailing-List: contact ambari-commits-help@incubator.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: ambari-dev@incubator.apache.org Delivered-To: mailing list ambari-commits@incubator.apache.org Received: (qmail 29132 invoked by uid 99); 12 Jan 2013 03:37:38 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 12 Jan 2013 03:37:38 +0000 X-ASF-Spam-Status: No, hits=-2000.0 required=5.0 tests=ALL_TRUSTED X-Spam-Check-By: apache.org Received: from [140.211.11.4] (HELO eris.apache.org) (140.211.11.4) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 12 Jan 2013 03:37:33 +0000 Received: from eris.apache.org (localhost [127.0.0.1]) by eris.apache.org (Postfix) with ESMTP id 7B7082388ABC; Sat, 12 Jan 2013 03:36:50 +0000 (UTC) Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: svn commit: r1432371 [7/24] - in /incubator/ambari/site: ./ installing-hadoop-using-ambari/ installing-hadoop-using-ambari/common/ installing-hadoop-using-ambari/common/css/ installing-hadoop-using-ambari/common/images/ installing-hadoop-using-ambari/c... Date: Sat, 12 Jan 2013 03:36:42 -0000 To: ambari-commits@incubator.apache.org From: yusaku@apache.org X-Mailer: svnmailer-1.0.8-patched Message-Id: <20130112033650.7B7082388ABC@eris.apache.org> X-Virus-Checked: Checked by ClamAV on apache.org Added: incubator/ambari/site/installing-hadoop-using-ambari/content/ambari-chap1-3.html URL: http://svn.apache.org/viewvc/incubator/ambari/site/installing-hadoop-using-ambari/content/ambari-chap1-3.html?rev=1432371&view=auto ============================================================================== --- incubator/ambari/site/installing-hadoop-using-ambari/content/ambari-chap1-3.html (added) +++ incubator/ambari/site/installing-hadoop-using-ambari/content/ambari-chap1-3.html Sat Jan 12 03:36:38 2013 @@ -0,0 +1,42 @@ + + + + +3. Decide on Deployment Type  +
 

 3. Decide on Deployment Type

While it is possible to deploy all of Hadoop components on a single host, this is appropriate only for initial evaluation. In general you should use at least three hosts: one master +host and two slaves.

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 4. Collect Information

To deploy your Hadoop installation, you need to collect the following information:

  • The fully qualified domain name (FQDN) for each host in y our system, and which component(s) +you wish to set up on which host. The Ambari install wizard does not support +using IP addresses. You can use hostname -f to check for the FQDN if you do not know +it.

  • The base directories you wish to use as mount points for storing:

    • NameNode data

    • DataNodes data

    • MapReduce data

    • ZooKeeper data, if you install ZooKeeper

    • Various log, pid, and db files, depending on your install type

  • The hostname (for an existing instance), database name, username, and password for the MySQL instance, if you install Hive/HCatalog.

[Note]Note

If you are using an existing i nstance, the user you create for Hadoop’s use must be granted all privileges.

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 5.1. Check Existing Installs

Ambari automatically installs the correct versions of the files that are necessary for Ambari +and Hadoop to run. Versions other than the ones that Ambari uses can cause problems in running the +installer, so remove any existing installs that do not match the following lists.

 RHEL/CentOS v5RHEL/CentOS v6SLES 11
Ambari Server

  • libffi 3.0.5-1.el5

  • python26 2.6.8-2.el5

  • python26-libs 2.6.8-2.el5

+		 +

  • postgresql 8.4.13-1.el6_3

  • postgresql-libs 8.4.13-1.el6_3

  • postgresql-server 8.4.13-1.el6_3

+		 +

  • libpq5 9.1.5-0.2.1

  • postgresql 8.3.20-0.4.1

  • postgresql-init 9.1-0.6.10.1

  • postgresql-server 8.3.20-0.4.1 +

+
Ambari Agent[a] +

  • libffi 3.0.5-1.el5

  • python26 2.6.8-2.el5

  • python26-libs 2.6.8-2.el5 +

+ +		 + +

None

+		 + +

None

+
Nagios Server[b] +

  • nagios 3.2.3-2.el5

  • nagios-plugins 1.4.15-2.el5

  • nagios-common 2.12-10.el5 +

+		 +

  • nagios 3.2.3-2.el6

  • nagios-plugins1.4.9-1 +

+		 +

  • nagios 3.2.3-2.1

  • nagios-plugins 1.4.9-1

  • nagios-www 3.2.3-2.1 +

+
Ganglia Collector[c] +

  • ganglia-gmetad 3.2.0-99

  • rrdtool 1.4.5-1.el5

+		 +

  • ganglia-gmetad 3.2.0-99

  • rrdtool 1.4.5-1.el6 +

+ +		 +

  • ganglia-gmetad 3.2.0-99

  • rrdtool 1.4.5-4.5.1 +

+ +
Ganglia Monitor[d] + +

ganglia-gmond 3.2.0-99 +

+		 + +

ganglia-gmond 3.2.0-99 +

+		 + +

ganglia-gmond 3.2.0-99 +

+

[a] Installed on each host in your cluster. Communicates with the Ambari Server to execute +commands.

[b] The host that runs the Nagios server.

[c] The host that runs the Ganglia Collector server

[d] Installed on each host in the cluster. Sends metrics data to the Ganglia Collector.

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 5.2. Set Up Password-less SSH

To have Ambari Server automatically install Ambari Agents in all your cluster hosts, you must +set up password-less SSH connections between the main installation (Ambari Server) host and all +other machines. The Ambari Server host acts as the client and uses the key-pair to access the other +hosts in the cluster to install the Ambari Agent.

[Note]Note

You can choose to install the Agents on each cluster host manually. In this case you do not need to +setup SSH. See Appendix: Installing Ambari Agents Manually for more information.

  1. Generate public and private SSH keys on the Ambari Server host

    ssh-keygen

  2. Copy the SSH Public Key (id_rsa.pub) to the root account on your target hosts. +Depending on your version of SSH, you may need to set permissions on your .ssh directory (to 700) +and the authorized_keys file in that directory (to 640).

    .ssh/id_rsa
+.ssh/id_rsa.pub

  3. Add the SSH Public Key to the authorized_keys file. 

    cat id_rsa.pub >> authorized_keys

  4. From the Ambari Server, make sure you can connect to each host in the cluster using +SSH.

    ssh root@{remote.target.host}

    You may see this warning. This happens on your first connection and is normal.

    Are you sure you want to continue connecting (yes/no)?

  5. Retain a copy of the SSH Private Key on the machine from which you will run the web-based Ambari +Install Wizard.

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 5.3. Enable NTP on the Cluster

The clocks of all the nodes in your cluster must be able to synchronize with each other.

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