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    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>.


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    OPTIONS
    CONFIGURATION FILE
    EXAMPLES
    AUTHOR


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