Kristian Kielhofner wrote:
Steve Totaro wrote:
I have searched google and came up with too many options and packages
that may or may not work for my needs, most articles seem to be for
setting up routers. Maybe someone on the list can give me some
better insight.
I have monitoring turned on my "shift eight (tm)" (Asterisk ;-)) box
for all calls. We have over one hundred agents and tons of
recordings in wav format. I also have a cron job that runs a script
to mux the in and out files and ftp them to a NAS device and it runs
every five minutes.
The NAS device and the * box are both directly connected to a Cisco
Gigabit switch. I have had complaints of calls fading in and out and
also cutting off. After reviewing the recordings, some of these
complaints seem valid and I suspect the sheer bandwidth of the FTP
traffic is causing the issues. I also run nagios checks on the box
and get ping warnings on a regular basis.
My question is, how can I throttle the FTP (Standard with dist)
transfers using out of the box CentOS4.3 (or any easy to use, low
learning curve package)? I thought about FTPing the files at less
frequent intervals but that just makes the issue less frequent but
last longer.
I would like to accomplish throttling FTP on the Linux box with a
solution that is not too elegant since this is a production machine
in a busy call center. If I cannot do it on the * box I guess my
next step is to see if the Cisco Gigabit switch has any QoS
functionality.
Thanks,
Steve
_______________________________________________
Steve,
If you don't want to get too fancy, you should switch to using
rsync (if possible) and use the "--bwlimit" option. If you MUST use
ftp, try using trickle:
http://monkey.org/~marius/pages/?page=trickle
I haven't used it, but you should be able to call your FTP upload
binary (whatever it may be) with it and force a lower transfer speed.
Let us know how it goes!
Trickle does not seem to work with the IA64 procs :(
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