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Project JXTA : An Open Peer-to-Peer Network Environment Gene Kan [email protected] Project JXTA Sun Microsystems, Inc. What is JXTA?. An open network programming platform to enable P2P services and applications. Defines a set of protocols for interoperating - PowerPoint PPT Presentation
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Project JXTA : An Open Peer-to-Peer Network Environment
Gene [email protected]
Project JXTASun Microsystems, Inc.
What is JXTA?
• An open network programming platform to enable P2P services and applications.• Defines a set of protocols for
interoperating• Is language- and network-independent• Is 100% open source, available at:
http://www.jxta.org
What is P2P?
• P2P has many examples:• Sharing files or swapping music
• Sharing CPU and storage resources
• Distributed search and indexing
• Instant messaging & pervasive devices talking with one another
• Serverless collaborative work (and play)
• New Smart Web Services
• New forms of content distribution
Adapted from an IBM presentation on P2P
Sun's interest in peer-to-peer
• P2P is the continuation of our vision -- “The Network Is the Computer”
• Demonstrate continued thought leadership
• Ensure open, level competitive field• Advance Sun’s readiness for P2P
• desktop software, workstations, compute farms, iPlanet products, servers, storage, network appliances
Client-server silos
Web-based computing
Peer-to-Peer
Evolution of computing
Project JXTA: why now?• More people connected,
more data generated• More nodes on the
Internet and wireless Web
• More bandwidth available• More computing power
available (disk, memory, CPU)
• More interesting applications, content, and services
• Edge devices increasingly providers of resources
Use of the Network/Value of the Network
Bandwidth
Users
Services
Data
Transactions
Devices
Everything that touchesthe network is growingat an exponential rate
Network Computing Explosion
Problems with today's Internet
• Information: hard to find, impossible to catalog and index
• Bandwidth: hot links get hotter, cold ones stay cold
• Computing resources: heavily loaded nodes get overloaded, idle nodes remain idle
Benefits of peer-to-peer• Theory
• Dynamic and adaptive discovery of information• Performance and functionality increase as more peers
participate• Better utilisation of bandwidth, processor, storage,
and other computing resources• Extend RAID concepts to computing resources
• Examples• Sharing content cache over high speed LAN• Data mirroring and striping using shared storage• Deep search beyond the web• Dynamic collaboration
Project JXTA: an open community
• Sun: initiator, contributor• Open source community
• Adopt, innovate, develop, promote
• Apache licensing gives developers flexibility• (Modified BSD license.)
• Everyone is free to use source code.
• Only requirement is to acknowledge Sun.
• Not required to publish modifications to source code.
Problems with other peer-to-peer systems under development
• Proprietary• Others aim to create a system from
which they can profit directly.• Lease the intellectual property or lease
the network.• Computing silos: non-interoperable,
fragmented networks• TCP/IP only: built-in dependency on
TCP/IP transport
JXTA technology objectives
• Interoperate across different peer-to-peer systems and communities
• Platform independence (programming languages, system platforms and networking platforms)
• Ubiquity:• Every device with a digital heartbeat
• J2ME MIDP for now
JXTA demonstration: chess
JXTA community status
• 80,000+ downloads in 3 months
• 25+ projects
• 5000 members
• Active discussion groups (4000+ msgs)
Partial list of current projects
• rosettachat (gonzo)• instantp2p (kuldeep)• shell (tra)• rrs (ziad)• fuel-auction (bfoley)
• jxtaspaces (vanessa)• payment (frose)• cms (dac)• search (stevew)• jxta-wire (lomax)• jxta-xml-rpc (jbeatty)• monitoring (kuldeep)
• platform (tra)• security (yeager)• jxme (kuldeep)
• pocketjxta (ianm)• vojxta (gkasinath)• haggle (navacron)• p2p-email (nitin)• jxrtl (savage)
JXTA core services projects
• C/C++ and J2ME MIDP implementations• Improved solutions for firewalls and
NAT• Reliable and secure pipes• Simpler APIs• Naming services• Authentication services• Revised specification