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new - How i can implement Mirroring
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MM(1L) MM(1L) NAME
mm - mirror master SYNOPSIS
mm [flags] [package-files] DESCRIPTION
mm is the mirror master. It runs multiple calls to mirror in parallel and handles locking and minimal retry times. As with mirror, mm is a package written in Perl. mm presumes that all the package details are stored in a directory called packages. All the packages for a given site must be in a file whose name is the same as that of the site. So in packages/sunsite.org.uk will be all the package details for the host sunsite.org.uk. OPTIONS
-t Ignore the minimal retry timers. -o site:package Only mirror the given site:package. -debug Enable debugging. If this argument is given more than once the debugging level will increase. Currently the maximum useful level is four. -s Enable status debugging. This will print out the status of any subprocess as it is spawned or as it exits. CONFIGURATION FILE The configuration file is parsed as a series of statements. Blank lines and lines beginning with a hash are ignored. There are are two kinds of statements, controls and site:package details. Control statements are of the form: keyword=value You can add whitespace around the equals. Here is a list of the keywords and their values, any defaults are given inside square brackets: home Directory that mm chdirs to before doing any work. [''] max Maximum number of mirrors that can be running in parallel at any one time ['6'] mirror This is the way to call mirror. Any occurence of $args, $package or $site is replace with the appropriate entry from the package. Any $pkg is replaced with a version of $package with all characters that cause problems in filenames converted to underscore. The default is: exec ./mirror $args -p'$package' packages/$site > logs/$site:$pkg 2>&1 [''] cmd Run the given command. This can occur multiple times. [''] cmdin Run the given command and use its output as mm input. This can occur multiple times. [''] skip Skip the given site:package when it occurs. [''] In addition to control statements there are also package details. Each package details statement is of the form: site:package min-restart-last-ok min-restart-last-notok mirror-args The site and package fields are matched against those in the packages. A mirror will only be run to this site:package if the last mirror run was more than min hours out. The min-restart-last-ok limit will be used if the last call to mirror was successful. If the mirror call failed then min-restart-last-notok will be used. EXAMPLES
Here is a simple mm input file to manage mirroring two packages. home=/public/mirror ftp.cl.cam.ac.uk:JIPS-nrs 20 20 hcrl.open.ac.uk:hcrl-psion 20 20 More usually the auxilly program pkgs_to_mmin will be used to automatically convert the contents of the packages directory into the site:package statements. home=/public/mirror cmdin=./pkgs_to_mmin packages/* AUTHOR
Written by Lee McLoughlin <lmjm@icparc.ic.ac.uk>. 21 April 1993 MM(1L)
