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diff --git a/doc/admin-guide/en-US/markdown/admin_Hadoop.md b/doc/admin-guide/en-US/markdown/admin_Hadoop.md deleted file mode 100644 index 742e8ad6255..00000000000 --- a/doc/admin-guide/en-US/markdown/admin_Hadoop.md +++ /dev/null @@ -1,146 +0,0 @@ -#Managing Hadoop Compatible Storage - -GlusterFS provides compatibility for Apache Hadoop and it uses the -standard file system APIs available in Hadoop to provide a new storage -option for Hadoop deployments. Existing MapReduce based applications can -use GlusterFS seamlessly. This new functionality opens up data within -Hadoop deployments to any file-based or object-based application. - -##Architecture Overview - -The following diagram illustrates Hadoop integration with GlusterFS: - - - -##Advantages - -The following are the advantages of Hadoop Compatible Storage with -GlusterFS: - -- Provides simultaneous file-based and object-based access within - Hadoop. -- Eliminates the centralized metadata server. -- Provides compatibility with MapReduce applications and rewrite is - not required. -- Provides a fault tolerant file system. - -##Preparing to Install Hadoop Compatible Storage - -This section provides information on pre-requisites and list of -dependencies that will be installed during installation of Hadoop -compatible storage. - -###Pre-requisites - -The following are the pre-requisites to install Hadoop Compatible -Storage : - -- Hadoop 0.20.2 is installed, configured, and is running on all the - machines in the cluster. -- Java Runtime Environment -- Maven (mandatory only if you are building the plugin from the - source) -- JDK (mandatory only if you are building the plugin from the source) -- getfattr - command line utility - -##Installing, and Configuring Hadoop Compatible Storage - -This section describes how to install and configure Hadoop Compatible -Storage in your storage environment and verify that it is functioning -correctly. - -1. Download `glusterfs-hadoop-0.20.2-0.1.x86_64.rpm` file to each - server on your cluster. You can download the file from [][]. - -2. To install Hadoop Compatible Storage on all servers in your cluster, - run the following command: - - `# rpm –ivh --nodeps glusterfs-hadoop-0.20.2-0.1.x86_64.rpm` - - The following files will be extracted: - - - /usr/local/lib/glusterfs-Hadoop-version-gluster\_plugin\_version.jar - - /usr/local/lib/conf/core-site.xml - -3. (Optional) To install Hadoop Compatible Storage in a different - location, run the following command: - - `# rpm –ivh --nodeps –prefix /usr/local/glusterfs/hadoop glusterfs-hadoop- 0.20.2-0.1.x86_64.rpm` - -4. Edit the `conf/core-site.xml` file. The following is the sample - `conf/core-site.xml` file: - - <configuration> - <property> - <name>fs.glusterfs.impl</name> - <value>org.apache.hadoop.fs.glusterfs.Gluster FileSystem</value> - </property> - - <property> - <name>fs.default.name</name> - <value>glusterfs://fedora1:9000</value> - </property> - - <property> - <name>fs.glusterfs.volname</name> - <value>hadoopvol</value> - </property> - - <property> - <name>fs.glusterfs.mount</name> - <value>/mnt/glusterfs</value> - </property> - - <property> - <name>fs.glusterfs.server</name> - <value>fedora2</value> - </property> - - <property> - <name>quick.slave.io</name> - <value>Off</value> - </property> - </configuration> - - The following are the configurable fields: - - Property Name | Default Value | Description - --- | --- | --- - fs.default.name | glusterfs://fedora1:9000 | Any hostname in the cluster as the server and any port number. - fs.glusterfs.volname | hadoopvol | GlusterFS volume to mount. - fs.glusterfs.mount | /mnt/glusterfs | The directory used to fuse mount the volume. - fs.glusterfs.server | fedora2 | Any hostname or IP address on the cluster except the client/master. - quick.slave.io | Off | Performance tunable option. If this option is set to On, the plugin will try to perform I/O directly from the disk file system (like ext3 or ext4) the file resides on. Hence read performance will improve and job would run faster. **Note*: This option is not tested widely - -5. Create a soft link in Hadoop’s library and configuration directory - for the downloaded files (in Step 3) using the following commands: - - `# ln -s >` - - For example, - - `# ln –s /usr/local/lib/glusterfs-0.20.2-0.1.jar /lib/glusterfs-0.20.2-0.1.jar` - `# ln –s /usr/local/lib/conf/core-site.xml /conf/core-site.xml ` - -6. (Optional) You can run the following command on Hadoop master to - build the plugin and deploy it along with core-site.xml file, - instead of repeating the above steps: - - `# build-deploy-jar.py -d -c ` - -##Starting and Stopping the Hadoop MapReduce Daemon - -To start and stop MapReduce daemon - -- To start MapReduce daemon manually, enter the following command: - - `# /bin/start-mapred.sh` - -- To stop MapReduce daemon manually, enter the following command: - - `# /bin/stop-mapred.sh ` - -> **Note** -> You must start Hadoop MapReduce daemon on all servers. - - []: http://download.gluster.com/pub/gluster/glusterfs/qa-releases/3.3-beta-2/glusterfs-hadoop-0.20.2-0.1.x86_64.rpm |