The File Browser application lets you browse and manipulate files and directories in the Hadoop Distributed File System (HDFS) while using Hue. With File Browser, you can:
Managing and viewing data in HDFS is an important part of Big Data analytics. Hue, the open source web-based interface that makes Apache Hadoop easier to use, helps you do that through a GUI in your browser — instead of logging into a Hadoop gateway host with a terminal program and using the command line.
The first episode in a new series of Hue demos, the video below demonstrates how to get up and running quickly with HDFS file operations via Hue’s File Browser application.
In addition to the above scenario, File Browser lets you perform more advanced file operations:
Thanks to File Browser, file operations in HDFS are only a few clicks away. Hue’s other apps leverage the File Browser as well and offer direct links to the outputs of your MapReduce jobs, Hive queries, or Pig scripts so that you can share or take a glance/visualize in no time.
Thank you for watching, and stay tuned for upcoming episodes! Feel free to ask questions in comments or via the Hue group.
File Browser is one of the applications installed as part of Hue. For information about installing and configuring Hue, see Hue Installation in http://www.cloudera.com/content/cloudera-content/cloudera-docs/CDH4/latest/CDH4-Installation-Guide/CDH4-Installation-Guide.html.
Click the File Browser icon () in the navigation bar at the top of the Hue browser page.
You can use File Browser to view the input and output files of your MapReduce jobs. Typically, you can save your output files in /tmp or in your home directory if your system administrator set one up for you. You must have the proper permissions to manipulate other user's files.
To change to your home directory, click Home in the path field at the top of the File Browser window.
The Home button is disabled if you do not have a home directory. Ask a Hue administrator to create a home directory for you.
You can upload text and binary files to the HDFS.
You can download text and binary files to the HDFS.
You can upload zip archives to the HDFS. The archive is uploaded and extracted to a directory named archivename.
File Browser supports the HDFS trash folder (home directory/.Trash) to contain files and directories before they are permanently deleted. Files in the folder have the full path of the deleted files (in order to be able to restore them if needed) and checkpoints. The length of time a file or directory stays in the trash depends on HDFS properties. For information on how to configure the HDFS trash folder, see Enabling Trash. in http://www.cloudera.com/content/cloudera-content/cloudera-docs/CDH4/latest/CDH4-Installation-Guide/CDH4-Installation-Guide.html.
Only the Hadoop superuser can change a file's or directory's owner, group, or permissions. The user who starts Hadoop is the Hadoop superuser. The Hadoop superuser account is not necessarily the same as a Hue superuser account. If you create a Hue user (in User Admin) with the same user name and password as the Hadoop superuser, then that Hue user can change a file's or directory's owner, group, or permissions.
To search for files or directories by name using the query search box, enter the name of the file or directory in the query search box. File Browser lists the files or directories matching the search criteria.