Annotation of doc/shortest_path_redhat7.2.txt, revision 1.3
1.3 ! harris41 1: $Id: shortest_path_redhat7.2.txt,v 1.2 2002/04/17 00:06:32 harris41 Exp $
1.1 harris41 2:
3: INSTALLING LON-CAPA ON A REDHAT 7.2 SYSTEM
4:
5: Scott Harrison
6:
7: * Quick Instructions
8: * Support
9: * System Requirements
10: * Strategy
11: * Testing
12: * Acknowledgements
13:
14: Quick Instructions
15: ------------------
16:
1.3 ! harris41 17: PLEASE contact sharrison@mail.lon-capa.org if these instructions
1.1 harris41 18: do not work.
19: PLEASE subscribe yourself to the ANNOUNCE MAILING LIST!
20: Go to http://mail.lon-capa.org/mailman/listinfo/lon-capa-announce
21:
22: 1. Download http://install.lon-capa.org/versions/current/loncapa.tar.gz
23: (from a linux terminal, type
24: wget http://install.lon-capa.org/versions/current/loncapa.tar.gz)
25: 2. tar xzvf loncapa.tar.gz
26: 3. cd loncapa
27: 4. Read the README file (this file).
28: 5. EXECUTE: ./UPDATE
29: 6. EXECUTE: ./TEST
30:
31: Please follow the instructions that are given
32: to you by the TEST command. You will probably
33: have to make a few changes and continue to run
34: TEST until all the system-critical steps are
35: taken care of.
36:
37: Support
38: -------
39:
40: LON-CAPA is a GPL-based project which originally was, and in a
41: significant sense still is, located at Michigan State University.
42: The installation, software versioning, and specification is
43: currently maintained by the freeware community which includes
1.2 harris41 44: the author of this document and more importantly you!
1.1 harris41 45:
46: Your interest, questions and suggestions are enthusiastically
47: invited for the specific development of the GPL code.
48:
49: We do our best to help get you started with a 100% operational
50: system. Please e-mail harris41@msu.edu or helen@lon-capa.org
51: for help with software installation.
52:
1.2 harris41 53: Hardware Recommendation
54: -----------------------
1.1 harris41 55:
1.2 harris41 56: For full-time, classroom usage, an adequate LON-CAPA server
57: should be/have:
1.1 harris41 58:
1.2 harris41 59: * a multiprocessor machine,
60: * a CPU speed of 1 gigahertz,
61: * a gigabyte of memory,
62: * and at least 40 to 80 gigabytes of hard disk space.
63:
64: A lesser machine can be used for toying around with LON-CAPA
65: (LON-CAPA will run for a single user on most any machine).
66:
67: LON-CAPA servers experience significant peaks of activity
68: before a homework submission deadline. To support these critical
69: peaks of activity, it is strongly advised that LON-CAPA machines
70: fit the above recommendation.
1.1 harris41 71:
72: If thousands of students start accessing the box as a web server...
1.2 harris41 73: well you may want to consider more options. The design of the LON-CAPA
74: system is to naturally and transparently load-balance on multiple
75: computer clusters. So, a simple solution for running an entire
76: college campus is to just have an adequate plurality of LON-CAPA
77: servers rather than a single, particularly monstrous server.
78:
79: We like to think of high web server usage as "a good problem" though.. :)
80:
81: More Information on Hardware and System Administration
82: ------------------------------------------------------
83:
84: I find that LON-CAPA works nicely (for development purposes)
85: on a Pentium II, 20 gigabytes of hard-disk space, 256M RAM,
86: and 400MHz. The consensus is though, that this may only
87: be adequate for a class of a dozen students.
88:
89: If you are making a serious investment, we suggest you
90: join our mailing list by visiting
91: http://mail.lon-capa.org/mailman/listinfo/lon-capa-users.
92: By posting to this mailing list, you can learn about what
93: solutions have worked for others.
94:
95: LON-CAPA works on any Intel-based RedHat-compatible
96: hardware. Unlike other software systems, it works
97: comparatively well on dusty old crippled machines without
98: much RAM or processing.
1.1 harris41 99:
100: We support Linux OS. LON-CAPA has been shown to work on Debian,
101: Mandrake, and RedHat. Instructions are based on RedHat-centric
102: installs. Given the current level of new LON-CAPA feature requests
103: and frequency of new software versions, we suggest that you stick
1.2 harris41 104: with RedHat to reduce high-frequency system administration overhead.
1.1 harris41 105:
106: Strategy
107: --------
108:
109: *** PERL ***
110: It is important to check and see if your system has all
111: needed perl modules in /usr/lib/perl5/.
112:
113: *** RPMS ***
114: It is important to:
115: * keep your RPMs up to date
116: * try to have a reasonably minimal set
117:
118: *** MYSQL ***
119: It should be kept operational at all times.
120: In case of failure, there is a resynchronizing
121: strategy so that the data on the filesystem
122: continually refreshes the data within the
123: MYSQL database.
124:
125: *** APACHE ***
126: LON-CAPA expects that conf/loncapa.conf will be the
127: last Apache configuration file to be processed before
128: launching the httpd server. This may interfere
129: with other ways in which you utilize your web server.
130: For instance, LON-CAPA requires that httpd
131: run as user=www and group=www.
132:
133: Testing
134: -------
135:
136: 1. Perl
137:
138: 2. MySQL
139:
140: 3. Web Layer
141:
142: 4. File Status
143:
144: 5. RPM Status
145:
146: Acknowledgements
147: ----------------
148:
149: Many thanks to Matthew Hall (Michigan State University),
150: Guy Albertelli (Michigan State University), Felicia
151: Berryman (Michigan State University), Gerd Kortemeyer
152: (Michigan State University) and Martin Siegert (Simon
153: Frasier University) for their responsive feedback regarding
154: ideas in this document.
155:
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