GFY PowerPoint Presentation

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NUG 2004 Grid File Yanker Demo Shreyas
Cholia Mass Storage Group, NERSC 06/24/2004
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Grid File Yanker

• Allows users to browse and transfer files, across
  filesystems served by GridFTP servers, directly
  from their web browser.
• Includes a reliable file transfer mechanism, that
  attempts to restart failed transfer jobs.
• Provides a convenient interface for submitting
  and monitoring background file transfer jobs.

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GFY Components

• GFY Server Java Servlet that runs as a SOAP
  Service. Users can invoke this via
• The GFY Client Applet
• Command line tools
• Their own SOAP clients that can call the GFY
  Server API

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GFY Components (cont.)

• GFY Client This is a Java applet that can run on
  any web browser that supports Java 1.4.2 (or
  higher).
• The applet provides a convenient GUI filesystem
  interface to access GridFTP servers and transfer
  files between them.
• Users do not have to carry Grid credentials on
  their client machines. The Applet supplies a
  username / password combination to the GFY Server
  which uses this to grab Grid credentials from a
  MyProxy server.

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GFY Screen Shot
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How it Works

• GFY Client provides username/password combination
  to GFY Server
• GFY Server uses combination to acquire a Grid
  Proxy Credential from a MyProxy Server, and
  returns a session identifier to the Client.
• GFY Client makes SOAP request to GFY Server to
  perform Filesystem operation / File Transfer
  using the session identifier.

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How it Works (cont.)

• GFY Server talks to desired GridFTP server(s)
  with the acquired credential and either
• performs the filesystem operation, or
• spawns off a background transfer thread to manage
  the reliable third party transfer between two
  GridFTP servers.
• Client can query the server for the state of
  current transfer jobs

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How it works
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Upcoming Features

• Recursive directory copy
• Multiple File Transfer / Bulk File operations
• Integration with NERSC Portal, including common
  login and credential sharing
• Command line tools to submit transfer jobs to GFY
  service

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Acknowledgements

• The GFY was made possible, thanks to the
  contributions of
• Matt Andrews (NERSC)
• Nancy Johnston (NERSC)
• Nancy Meyer (NERSC)
• Steve Chan (NERSC)
• Adam Megacz (XWT Foundation)

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Additional Information

• FSG Homepage http//www.nersc.gov/nusers/resource
  s/HPSS
• GFY Information
• Contact
• Shreyas Cholia (Mass Storage Group)
• Email scholia_at_lbl.gov
• Phone [phone]