Apache Ambari

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Ambari是一款用于简化Hadoop集群部署、管理和监控的软件。它提供了一个直观易用的Web UI，并支持RESTful API。Ambari使系统管理员能够通过简单的向导进行Hadoop服务的配置和安装，并提供了集群服务的集中管理及健康状态监控。

Ambari enables system administrators to provision, manage and monitor a Hadoop cluster, and also to integrate Hadoop with the existing enterprise infrastructure.

The Apache Ambari project is aimed at making Hadoop management simpler by developing software for provisioning, managing, and monitoring Apache Hadoop clusters. Ambari provides an intuitive, easy-to-use Hadoop management web UI backed by its RESTful APIs.

Ambari enables System Administrators to:

Provision a Hadoop Cluster
- Ambari provides a step-by-step wizard for installing Hadoop services across any number of hosts.
- Ambari handles configuration of Hadoop services for the cluster.

Manage a Hadoop Cluster
- Ambari provides central management for starting, stopping, and reconfiguring Hadoop services across the entire cluster.

Monitor a Hadoop Cluster
- Ambari provides a dashboard for monitoring health and status of the Hadoop cluster.
- Ambari leverages Ambari Metrics System for metrics collection.
- Ambari leverages Ambari Alert Framework for system alerting and will notify you when your attention is needed (e.g., a node goes down, remaining disk space is low, etc).

Ubuntu 下安装 Ambari

Step1: Download the Ambari repository on the Ambari Server host

 
          For Redhat/CentOS/Oracle:
         
          cd /etc/yum.repos.d/
         
          wget <ambari-repo-url>
         
          For SUSE:
         
          cd /etc/zypp/repos.d
         
          wget <ambari-repo-url>
         
          For Ubuntu:
         
          cd /etc/apt/sources.list.d
         
          wget <ambari-repo-url>

Choose an appropriate <ambari-repo-url> based on the platform used:

(Redhat / CentOS / Oracle) 6	http://s3.amazonaws.com/dev.hortonworks.com/ambari/centos6/2.x/BUILDS/2.1.0-1409/ambaribn.repo
(Redhat / CentOS / Oracle) 7	http://s3.amazonaws.com/dev.hortonworks.com/ambari/centos7/2.x/BUILDS/2.1.0-1409/ambaribn.repo
SUSE 11	TBD
Ubuntu 12	http://s3.amazonaws.com/dev.hortonworks.com/ambari/ubuntu12/2.x/BUILDS/2.1.0-1409/ambaribn.list

Step 2: Install, Setup, and Start Ambari Server

Install Ambari Server from the public Ambari repository:

 
          For Redhat/CentOS/Oracle:
         
          yum install ambari-server
         
          For SUSE:
         
          zypper install ambari-server
         
          For Ubuntu:
         
          apt-key adv --recv-keys --keyserver keyserver.ubuntu.com B9733A7A07513CAD
         
          apt-get update
         
          apt-get install ambari-server

Run the setup command to configure your Ambari Server, Database, JDK, LDAP, and other options:

 
          ambari-server setup
         

Start Ambari Server:

 
          ambari-server start
         

Step 3: Deploy Cluster using Ambari Web UI

Open up a web browser and go to http://<ambari-server-host>:8080.

几个重要的UI界面

http://localhost:8080/

http://localhost:8000/

http://localhost:50070/