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NAME
    growthforecast.pl - Lightning Fast Graphing/Visualization

SYNOPSIS
      % growthforecast.pl --data-dir=/path/to/dir

DESCRIPTION
    GrowthForecast is graphing/visualization web tool built on RRDtool

INSTALL
    Install dependencies
        To install growthforecast, these libraries are needed.

        *   glib

        *   xml2

        *   pango

        *   cairo

          (CentOS) $ sudo yum groupinstall "Development Tools"
                   $ sudo yum install pkgconfig glib2-devel gettext libxml2-devel pango-devel cairo-devel
  
          (Ubuntu) $ sudo apt-get build-dep rrdtool

    Install GrowthForecast
          $ cpanm GrowthForecast

        It's recommended to using perlbrew

OPTIONS
    --data-dir
        A directory to store rrddata and metadata

    --port
        TCP port listen on. Default is 5125

    --host
        IP address to listen on

    --socket
        File path to UNIX domain socket to bind. If enabled unix domain
        socket, GrowthForecast does not bind any TCP port

    --front-proxy
        IP addresses or CIDR of reverse proxy

    --allow-from
        IP addresses or CIDR to allow access from. Default is empty (allow
        access from any remote ip address)

    --disable-1min-metrics
        don't generate 1min rrddata and graph Default is "1" (enabled)

    --disable-subtract
        Disable gmode `subtract`. Default is "1" (enabled)

    --enable-float-number
        Store numbers of graph data as float rather than integer. Default is
        "0" (disabled)

    --with-mysql
        DB connection setting to store metadata. format like
        dbi:mysql:[dbname];hostname=[hostnaem] Default is no mysql setting.
        GrowthForecast save metadata to SQLite

    --web-max-workers
        Number of web server processes. Default is 4

    --rrdcached
        rrdcached address. format is like either of

           unix:</path/to/unix.sock>
           /<path/to/unix.sock>
           <hostname-or-ip>
           [<hostname-or-ip>]:<port>
           <hostname-or-ipv4>:<port>

        See the manual of rrdcached for more details. Default does not use
        rrdcached.

    --mount
        Provide GrowthForecast with specify url path. Default is empty (
        provide GrowthForecast on root path )

    --time-zone
        Set the system time zone for GrowthForecast. Default is system
        timezone.

    -v --version
        Display version

    -h --help
        Display help

MYSQL Setting
    GrowthForecast uses SQLite as metadata by default. And also supports
    MySQL

    GrowthForecast needs these MySQL privileges.

    *   CREATE

    *   ALTER

    *   DELETE

    *   INSERT

    *   UPDATE

    *   SELECT

    Sample GRANT statement

      mysql> GRANT statement sample> GRANT  CREATE, ALTER, DELETE, INSERT, UPDATE, SELECT \\
               ON growthforecast.* TO 'www'\@'localhost' IDENTIFIED BY foobar;

    Give USERNAME and PASSWORD to GrowthForecast by environment value

      $ MYSQL_USER=www MYSQL_PASSWORD=foobar growthforecast.pl \\
          --data-dir /home/user/growthforecast \\
          -with-mysql dbi:mysql:growthforecast;hostname=localhost

    AUTHOR Masahiro Nagano <kazeburo {at} gmail.com>

    LICENSE This library is free software; you can redistribute it and/or
    modify it under the same terms as Perl itself.