Installing Hue
This section describes Hue installation and configuration on a cluster. The steps in this section apply whether you are installing on a single machine in pseudo-distributed mode, or on a
cluster.
CDH 5 Hue works only with the default system Python version of the operating system it is being
installed on. For example, on RHEL/CentOS 6, you need Python 2.6 to start Hue.
To install packages from the EPEL repository, download the appropriate repository rpm packages to your machine and then install Python using yum. For
example, use the following commands for RHEL 5 or CentOS 5:
$ su -c 'rpm -Uvh http://download.fedoraproject.org/pub/epel/5/i386/epel-release-5-4.noarch.rpm' ... $ yum install python26
Installing the Hue Packages
You must install the hue-common package on the machine where you will run the Hue Server. In addition, if you will be using Hue with MRv1, you must install the hue-plugins package on the system where you are running the JobTracker. (In pseudo-distributed mode, these will all be the same system.)
The hue meta-package installs the hue-common package and all the Hue applications; you also need to install hue-server, which contains the Hue start and stop scripts.
On RHEL systems:
- On the Hue Server machine, install the hue package:
$ sudo yum install hue
- For MRv1: on the system that hosts the JobTracker, if different from the Hue server machine, install the hue-plugins package:
$ sudo yum install hue-plugins
On SLES systems:
- On the Hue Server machine, install the hue package:
$ sudo zypper install hue
- For MRv1: on the system that hosts the JobTracker, if different from the Hue server machine, install the hue-plugins package:
$ sudo zypper install hue-plugins
On Ubuntu or Debian systems:
- On the Hue Server machine, install the hue package:
$ sudo apt-get install hue
- For MRv1: on the system that hosts the JobTracker, if different from the Hue server machine, install the hue-plugins package:
$ sudo apt-get install hue-plugins
Hue Dependencies
The following table shows the components that are dependencies for the different Hue applications:
| Component | Dependent Applications |
|---|---|
| HDFS | Core, File Browser |
| MapReduce | Job Browser, Job Designer, Oozie, Hive Editor, Pig, Sqoop |
| YARN | Job Browser, Job Designer, Oozie, Hive Editor, Pig, Sqoop |
| Oozie | Job Designer, Oozie Editor/Dashboard |
| Hive | Hive Editor, Metastore Tables |
| Impala | Impala Editor, Metastore Tables |
| HBase | HBase Browser |
| Pig | Pig Editor, Oozie |
| Search | Solr Search |
| Spark | Spark |
| Sentry | Hadoop Security |
| Sqoop | Oozie |
| Sqoop 2 | Sqoop Transfer |
| ZooKeeper | ZooKeeper |