(Illustration by Gaich Muramatsu)
Andreas Jellinghaus wrote: > > great ! configuration is not so important, we can write a howto :-) > i saw man pages in the postscript docs. are these manpages also in the > sources (i ask, because i didn't see any).. I've included the man-pages which were included in the coda 4.0 sources in my packages. They are not included with the last couple of source package, as most of them are outdated. > my idea how to use coda is : > i have a linux server, and 80 pc's booting win* or linux. > currently they boot win95, loadlin, linux, get the rootfs via nfs > (readonly, it's / of the server), mount /var from the server (rw)). <snip> > coda could help (if i understodd everything right) : > - useing several 100 mb as cache will reduce network load a lot. > after a reboot, coda can use the data again and will detect changes. > - i still can mount the root from nfs, but then load the rest from > coda, useing venus/cache. either i will move /opt and /usr to coda, > or chroot to /coda > - not even root on a poolpc can access the homedirectories, unless he > knows the password. Logfiles are not really suited to be stored on a coda-fs. As coda works on a whole file-caching basis. Homedirs and /usr should live fine in a coda-fs. > problems i see so far : > - is coda stable enough > - ticket expiry of 25h. for calculations lomger than 25h this could eb > a problem. > - after login via xdm, the home direcotirs are still protected. so i > need to call some application in the global Xsession file, that > will ask for a password and clog. > - coda servers don't hold data on normal filesystems, so during test > phase, i need all data twice - once on ext2 for nfs export, and once on > coda partitions > - currently i export / but block several subdirs with "noaccess", and > mount /var from "/export/`hostname`/, becuase every server needs > its own /var/tmp (/tmp is a symlink to /var/tmp), /var/log ... I think your best bet would be to stay mainly with the existing setup, and start with readonly things on coda (f.i. /usr/bin and /usr/lib). Then there is no need for reintegration or authentication. Hereby you'd also mainly avoid the unstable parts of coda. Besides, it's probably hard to keep the writable nfs-exported and coda-fs tree's in sync. This should give a good start at reducing network load, while keeping your setup centralized. > how fast is coda (venus cache hits) ? i hope it will not be as fast as > direkt hard disk useage, but much faster than nfs. > > with hoard a client machine will continue to work, if the server is down > for a few minutes. Even for a few days, my laptop rarely connects to my server and I can do just about everything. You actually don't need hoard, except when you want to `force' things into the cache. > > - It's also better to compile the kernel module using the code included > > with the 2.1 kernels, or from the linux-coda-4.4.0.tgz package). > > yes, i'm running 2.1.90 with linux-coda 4.4.0 module. The coda module in linux-2.1.90 is actually more recent than the one in linux-coda-4.4.0.tgz. > andreas about coda-src/asr/parser I _think_ I solved that by replacing the yacc with $(YACC) in the Makefile y.tab.c: $(srcdir)/resolver.yacc yacc -d $< ^^^^ $(YACC) where my YACC is defined as bison -y. But as I can see from your __eh_pc, it might also be a problem of mixing a c++ compiler with a cc linking step. Do you happen to use egcs, which adds exception handling stuff to C++ code? parser: ${OBJECTS} $(LIBS) $(CC) $(LIBFLAGS) ${OBJECTS} $(LIBS) $(LIBFLEX) -o parser ^^^^^ try with $(CXX) JanReceived on 1998-03-23 07:23:15