Cs556 PowerPoint PPT Presentations
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Setting up a secure channel between a (Venus) client & a (Vice) server in Coda. ... of file & directory operations recognized by Coda wrt access control. ...
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a base DN indicates where in the hierarchy to begin the search ... on IP destination address. network ... change of IP address (conform to new subnet), or ...
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Airlines, travel agencies, ... Descendant of CRS (Computerized Reservation System) ... 59 K travel agencies. 450 airlines, 53 K hotels ...
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Case Studies of Scalable Systems: Porcupine, Inktomi (& a taste of SABRE) Fall Semester 2002 ... Porcupine. A highly available cluster-based mail service ...
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Every query goes to all workers in parallel. Workers are not ... to build those abstractions in a layered fashion (reuse) ... an inversion of Yahoo! directory ...
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... and a nominal 'perfect clock' per unit of time measured by the reference ... Astronomical Time: ... rarely deleted, to keep in step with Astronomical Time ...
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http://www.tibco.com/products/rv/index.html. Fall Semester 2001. CS556: ... collections, properties, query, trader, concurrency control, relationships ...
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... organized in a hierarchy of directories & identified by pathnames. Operations: ... Data is pushed linearly along a chain of chunk-servers in a pipelined fashion ...
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... and a nominal 'perfect clock' per unit of time measured by the reference ... Astronomical Time: ... rarely deleted, to keep in step with Astronomical Time ...
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The Last 5 Years: Availability Dark Ages. Ready for a Renaissance? ... tcp/http/html/dhtml/dom/xml/com/corba/cgi/sql/fs/os... Skill level is much reduced ...
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Reliability - the extent to which a system yields expected results on repeated trials ... Next call picks up the scan where it left off. cursors ...
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Dual hosting for the storage devices. SCSI, NAS, SAN ... A particular disk or filesystem can only be accessed by one server at a time. ...
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Federations of software services and/or devices ... a collection of co-operating peers. Eg: in the context of a service. World Peer Group ...
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Replicate data close to points where groups of clients need it ... Hold back until above condition is satisfied. RM can wait for missing updates ...
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discovery of services. replicated data (better performance) propagation of event ... eg: Client uses local timer to schedule an ACK after a fixed period, new ...
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Condor. Distributed batch processing. Large-scale numerical ... restart() invoked by Condor code. Instead of user's main() Overwrites its own data segment ...
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Undoing & re ... Servers must be able to undo the effects of some previous ' ... Each server maintains write log & undo log. Sorted by committed or ...
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Undoing & re ... Servers must be able to undo the effects of some previous ' ... Each server maintains write log & undo log. Sorted by committed or ...
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Unpack args. Receive. Callee Machine. RPC-runtime. Stub level ... pack/unpack arguments & results, binding. Fall Semester 2004. CS-556: Distributed Systems ...
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... manipulated & evolved in an automated fashion ... An industry initiative for B2B interoperability. First spec's outlined by Ariba, Microsoft & IBM ...
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Need to maintain history. Last reply sent to each client ... Need RPC specification file (square.x): defines procedure name, arguments & results ...
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What if a replica fails or becomes isolated ? Upon rejoining, it must 'catch up' ... c (disallowed). d (disallowed). p crashes. view (q, r) ...
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ICMP & ICMPv6 Referenced on RFC s 792 and 2463 respectively. Frank Azevedo
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2 lectures a week Monday 12-1 And Thursday 10-11. Practicals ... Java How to Program (6th Edition) by Harvey & Paul Deitel & Associates; Prentice Hall, 2004 ...
