Big Infrastructure, Small Clients

1
Big Infrastructure, Small Clients

• Prof. Eric A. Brewer
• brewer_at_cs.berkeley.edu

2
Distillation Proxy Architecture
Proxy front-end
Servers
fast LAN or SAN
Image
Audio
Datatype- specific Distillers
Video
Text
3
Datatype-Specific Distillation

• Lossy compression that preserves semantic content
• Tailor content for each client

6.8x
1.2 The Remote Queue Model We introduce Remote
Queues (RQ), .
65x

4
Refinement

• Retrieve part of distilled object at higher
  quality

Zoom in to original resolution
Distilled image (by 60X)

5
Computing in the Infrastructure

• Legacy server compatibility
• Partition functionality for small clients
• Amortize resources across many clients
• Can combine with distributed caching
• Enable groupware (via shared state)
• Enable consistent virtual environment

6
Scalable Proxy Architecture

• Component replication for scaling and FT
• NOW with scalable interconnect
• Incremental scaling commodity building blocks

7
Thin Clients Top Gun Wingman

• Worlds only graphical browser for PalmPilot
• gt 10,000 users worldwide
• Richest feature set of any Pilot browser, many
  uniquely enabled by proxy
• 9 out of 100 in Peoples Choice awards

8
Groupware Top Gun MediaBoard

• Group whiteboard comes to the Pilot
• Combines MASH tools with proxy
• Enables future MASH collaboration
• Inherits proxy robustness scalability
• Interoperates with laptops, workstations

Superiority of proxy-based approach to enabling
thin clients successfully demonstrated.
9
WorkPad/Proxy Infrastructure

• Basics web, e-mail access, search engine
• Groupware whiteboard, web-based calendar
• Wireless and cradle access
• Document conversion PostScript, PDF, class
  notes, PowerPoint
• WorkPad as smart card for authentication

10
TopGun WingMan/Mediaboard
AR
PDA
LegacyServer
PDA Proxy
Base
Image Converter Un-Zip
MediaBoard
PC
Multicast Connector
Aggregator
AR
Mic
Camera
11
Ninja Goals

• Tinkertoy wide-area components
• Automatic discovery, composition and use
• Very powerful operators clusters, databases
  agents
• Viable component economics subscription, pay per
  use
• Great devices, sensors, actuators
• Connect everything...