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  ---
  Hadoop HDFS over HTTP ${project.version} - Server Setup
  ---
  ---
  ${maven.build.timestamp}

Hadoop HDFS over HTTP ${project.version} - Server Setup

  \[ {{{./index.html}Go Back}} \]

  This page explains how to quickly setup HttpFS with Pseudo authentication
  against a Hadoop cluster with Pseudo authentication.

* Requirements

    * Java 6+

    * Maven 3+

* Install HttpFS

+---+
~ $ tar xzf  httpfs-${project.version}.tar.gz
+---+

* Configure HttpFS

  By default, HttpFS assumes that Hadoop configuration files
  (<<<core-site.xml & hdfs-site.xml>>>) are in the HttpFS
  configuration directory.

  If this is not the case, add to the <<<httpfs-site.xml>>> file the
  <<<httpfs.hadoop.config.dir>>> property set to the location
  of the Hadoop configuration directory.

* Configure Hadoop

  Edit Hadoop <<<core-site.xml>>> and defined the Unix user that will
  run the HttpFS server as a proxyuser. For example:

+---+
  ...
  <property>
    <name>hadoop.proxyuser.#HTTPFSUSER#.hosts</name>
    <value>httpfs-host.foo.com</value>
  </property>
  <property>
    <name>hadoop.proxyuser.#HTTPFSUSER#.groups</name>
    <value>*</value>
  </property>
  ...
+---+

  IMPORTANT: Replace <<<#HTTPFSUSER#>>> with the Unix user that will
  start the HttpFS server.

* Restart Hadoop

  You need to restart Hadoop for the proxyuser configuration ot become
  active.

* Start/Stop HttpFS

  To start/stop HttpFS use HttpFS's bin/httpfs.sh script. For example:

+---+
httpfs-${project.version} $ bin/httpfs.sh start
+---+

  NOTE: Invoking the script without any parameters list all possible
  parameters (start, stop, run, etc.). The <<<httpfs.sh>>> script is a wrapper
  for Tomcat's <<<catalina.sh>>> script that sets the environment variables
  and Java System properties required to run HttpFS server.

* Test HttpFS is working

+---+
~ $ curl -i "http://<HTTPFSHOSTNAME>:14000?user.name=babu&op=homedir"
HTTP/1.1 200 OK
Content-Type: application/json
Transfer-Encoding: chunked

{"homeDir":"http:\/\/<HTTPFS_HOST>:14000\/user\/babu"}
+---+

* Embedded Tomcat Configuration

  To configure the embedded Tomcat go to the <<<tomcat/conf>>>.

  HttpFS preconfigures the HTTP and Admin ports in Tomcat's <<<server.xml>>> to
  14000 and 14001.

  Tomcat logs are also preconfigured to go to HttpFS's <<<logs/>>> directory.

  The following environment variables (which can be set in HttpFS's
  <<<conf/httpfs-env.sh>>> script) can be used to alter those values:

  * HTTPFS_HTTP_PORT

  * HTTPFS_ADMIN_PORT

  * HTTPFS_LOG

* HttpFS Configuration

  HttpFS supports the following {{{./httpfs-default.html}configuration properties}}
  in the HttpFS's <<<conf/httpfs-site.xml>>> configuration file.

  \[ {{{./index.html}Go Back}} \]