📄 http:^^www.cs.tamu.edu^research^phoenix^
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Date: Tue, 26 Nov 1996 00:46:53 GMT
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<HTML><HEAD><TITLE>PHOENIX </TITLE></HEAD><BODY><HR SIZE=5><CENTER><H1>Welcome to PHOENIX home page </H1><B></B> <BR><BR></CENTER><HR SIZE=5><!WA0><A HREF="http://www.tamu.edu/"><!WA1><IMG SRC="http://www.cs.tamu.edu/Images/logos/tamuseal.gif" align="right"> </A><!WA2><A HREF="http://www.cs.tamu.edu/research/phoenix//">Department of Computer Science </A><BR><!WA3><A HREF="http://www.cs.tamu.edu/Images/pics/bright_tall.jpg"> H R Bright Building </A><BR><!WA4><A HREF="http://www.tamu.edu/">Texas A&M University </A><BR>College Station, Texas 77843-3112.<BR><BR> <BR> <BR> <BR><BR> <BR><BR> <BR> <BR><!WA5><IMG SRC="http://www.cs.tamu.edu/Images/icons/at_work_icon.gif" align="left"> <EM>Like most homepages this page is also under construction! </EM><HR SIZE=5><P>The Phoenix project is being carried out at the Distributed Systems Laboratories, at Texas A&M University, Computer Science Department.<P>Phoenix is an object oriented environment, which will provide fault tolerance capabilities to objects. Phoenix uses, <!WA6><A HREF="http://www.sun.com:80/cgi-bin/show?tech/projects/spring/index.body/"> Spring Research Distribution </A> from <!WA7><A HREF="http://www.sun.com/">Sun</A>, which is a object oriented distributed operating system, as its base. The aim of Phoenix is to provide fault tolerance to objects in Spring.<P>The fault tolerance in Phoenix is provided at two levels:<OL><LI>Totally user (application) tranparent: At this level the system provides fault tolerance for any (object oriented) application that is developed in Spring. Fault tolerance is provided without the modification of the source code. Thus fault tolerance can be provided for a third party object, whose source code is not available.<P><LI>Fault Tolerance API: At this level, users specifically develop theapplication to tolerate faults using the library functions provided by Phoenix (application programmers interface - APIs). This is not totally user transparent, but will have a better performance than the totally user transparent one.</OL><B>Phoenix Components:</B><P>The major components (inter dependent) of the Phoenix system are:<P><UL><LI>Fault Tolerance support for distributed Objects (provided by FTO Layer): FTOlayer makes the objects in Phoenix fault tolerant, using checkpointing andmessage logging and object replication. It does so, with minimal disturbance in the object response time. It uses the support provided by FTNS and FTC.<LI>Fault Tolerant Naming Service (provided by FTNS layer): This service helps in finding replicated objects, objects that are moved/restarted because of failures. This is done transparent to the user. <LI>Fault Tolerant Communication services (provided by FTC Layer): This layerprovides reliable causally/totally ordered communication support for objects. It also assists FTO incheckpointing and message logging.<LI> Distributed system health checker (distributed failure detection service):This module continuously checks the health of the system in a distributedfashion. It informs Phoenix of the faults in the system. This layer alsohelps in continuing execution of a failed object/node.</UL><B>Researchers involved:</B><P><!WA8><IMG SRC="http://www.cs.tamu.edu/Images/icons/ball.green.gif" ALIGN="left"><!WA9><A HREF="http://www.cs.tamu.edu/faculty/pooch/"> Prof. Dr. Udo W Pooch </A> <P><!WA10><IMG SRC="http://www.cs.tamu.edu/Images/icons/ball.green.gif" ALIGN="left"><!WA11><A HREF="http://www.cs.tamu.edu/people/ganeshb/">Ganesha Beedubail </A> <P><!WA12><IMG SRC="http://www.cs.tamu.edu/Images/icons/ball.green.gif" ALIGN="left"><!WA13><A HREF="http://www.cs.tamu.edu/people/anilg/"> Anil Gurijala </A> <P><!WA14><IMG SRC="http://www.cs.tamu.edu/Images/icons/ball.green.gif" ALIGN="left"><!WA15><A HREF="http://www.cs.tamu.edu/people/anishk/"> Anish Karmarkar </A> <P><!WA16><IMG SRC="http://www.cs.tamu.edu/Images/icons/ball.green.gif" ALIGN="left"><!WA17><A HREF="http://www.cs.tamu.edu/faculty/willis/"> Willis Marti </A> <P><!WA18><IMG SRC="http://www.cs.tamu.edu/Images/icons/ball.green.gif" ALIGN="left"><!WA19><A HREF="http://www.cs.tamu.edu/staff/ellenm/"> Ellen Mitchell </A> <P><HR SIZE=5><!WA20><A HREF="http://www.cs.tamu.edu/research/phoenix/schedule.html">Phoenix Meeting Schedule and Agenda</A><HR SIZE=5><BR><!WA21><A HREF="http://www.cs.tamu.edu/research/phoenix/papers_bib.html"> <!WA22><img src="http://www.cs.tamu.edu/Images/buttons/bookwrld.gif" ALIGN="left">Papers related to Phoenix </A> <P><BR> <BR><!WA23><A HREF="http://www.sun.com:80/cgi-bin/show?tech/projects/spring/papers.html"> <!WA24><img src="http://www.cs.tamu.edu/Images/buttons/bookwrld.gif" ALIGN="left">Papers on Spring </A> <P><BR><HR SIZE=5><!WA25><A HREF="http://www.cs.tamu.edu/research/phoenix//"> <!WA26><IMG SRC="http://www.cs.tamu.edu/Images/buttons/go_prev_btn.gif">Computer Science Dept Home Page</A><P><HR SIZE=5>If you have any questions/comments/suggestions about Phoenix homepage, send mail to <!WA27><A HREF="http://www.cs.tamu.edu/cgi-bin/personal_mailform?anishk">Anish Karmarkar</A> <BR><EM> Last updated: 18th Oct., 1995.</EM> <BR><HR SIZE=5></BODY></HTML>⌨️ 快捷键说明
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