focal (8) watch-multiple-mimedefangs.8.gz

NAME

       watch-multiple-mimdefangs.tcl - Keep an eye on a cluster of MIMEDefang machines

SYNOPSIS

       watch-multiple-mimdefangs.tcl [-n] [-r] [-s] [-t] [-archive] machine-1 machine-2 ... machine-N

DESCRIPTION

       watch-multiple-mimdefangs.tcl  is  a  Tk  script  that  graphically  displays  the  status of mimedefang-
       multiplexor(8) on a cluster of machines.  Note that Tcl/Tk 8.4  or  higher  is  required  to  run  watch-
       multiple-mimdefangs.tcl.

       If you supply the -archive command-line option, then watch-multiple-mimdefangs.tcl logs the output of md-
       mx-ctrl rawload for each machine.  The output for machine_name is logged in:

       $HOME/.watch-multiple-mimedefangs/machine_name/data.

       If you supply any of -n, -r, -s or -t  options,  then  watch-multiple-mimdefangs.tcl  uses  the  rawload1
       command  rather  than  rawload  command  to  read  performance data.  Do not use these options unless all
       monitored machines are running MIMEDefang 2.74 or newer!.

       The -n, -r, -s, and -t options enable monitoring of scan times, filter_relay times,  filter_sender  times
       and filter_recipient times, respectively.

PREREQUISITES

       To  use  watch-multiple-mimdefangs.tcl  to  monitor  a  cluster  of  machines,  you  need  the  following
       prerequisites:

       o      A UNIX-like machine with Tcl/Tk 8.4, the X window system and an SSH client.  You also need "xterm"
              to use some of the features.

       o      The  ability  to  SSH  as root to all of the machines you want to monitor.  Ideally, you should be
              using the SSH agent so that you can SSH to the monitored machines as root without  being  prompted
              for a password or pass phrase.

       o      The program md-mx-ctrl on root's path on all the machines you want to monitor.

DISPLAY

       For  each  machine specified on the command line, watch-multiple-mimdefangs.tcl creates a chart with five
       columns.  The columns are:

       o      A button with the name of the machine.  Clicking the button pops up a  menu  that  lets  you  take
              various  actions,  as  described  later.  If all workers on the machine are busy, the button turns
              yellow.

       o      A label showing the number of busy workers in the form "busy/total",  where  total  is  the  total
              number of workers.

       o      A label showing the average number of messages per second over the last 10 seconds.

       o      A label showing the average number of milliseconds per scan over the last 10 seconds.

       o      A  chart that graphs the average number of busy workers, the average number of messages per second
              and the average scan time in milliseconds, all averaged over the last 10 seconds.

MACHINE MENU

       If you click on a machine name, a menu with three options pops up:

       SSH    Open an xterm session and ssh as root to the machine.

       Busy Workers
              Monitor the busy workers on the machine.  If you click on the process-ID of  a  worker,  an  xterm
              will  open  up  and  the command "strace -s 100 -t -p pid" will be executed on the remote machine.
              This is Linux-specific, but you can edit watch-multiple-mimdefangs.tcl to replace the command with
              your particular system's command for tracing system calls.

       Delete Remove the machine from the list of machines being monitored.

ADDING A MACHINE

       If  you  need  to add a machine to the display, simply type the name of the machine in the "Add Machine:"
       box and press Enter.

AUTHOR

       watch-multiple-mimdefangs.tcl was written by Dianne Skoll.

SEE ALSO

       mimedefang.pl(8),  mimedefang-filter(5),  mimedefang(8),  mimedefang-protocol(7),  md-mx-ctrl(8),  watch-
       mimedefang(8)