Hello,
The 140 liquidsoaps are running on a dual-CPU xeon 5500 series (8 physical
cores - 16 logical cores HT) with 12 GB RAM.
On a single core i7 processors we run 80 liquidsoap instances.
On a single core2duo we ran 25 liquidsoap instances (we don't have anymore this
kind of servers).
Here is my script :
#!/usr/bin/liquidsoap
set("scheduler.log",false)
set("log.level", 4)
# Live Settings : from the command line args
liveport = int_of_string(argv(5))
livepass = argv(6)
set("harbor.bind_addr","0.0.0.0")
set("harbor.port",liveport)
set("harbor.password",livepass)
set("harbor.icy",true)
# RM Settings : when not live args from command line
fluxid = argv(1)
name = argv(2)
description = argv(3)
finaldesc = string.replace(pattern="_",(fun (s) -> " "),description)
genre = argv(4)
rmeffect = argv(7)
liveeffect = argv(8)
mountpoint = "flux-"^fluxid
# path to php script getting the next song to play and cutting the files (at
intro and extro point)
cmd = "/mm/grabcf.php "^fluxid
# RM Dynamic request
input2 = request.dynamic(id=fluxid, fun () -> request(get_process_output(cmd)))
# Default mix (could be overwritten)
def our_crossfade(~start_next,~fade_in,~fade_out,s)
s = fade.in(duration=fade_in,s)
s = fade.out(duration=fade_out,s)
fader = fun (a,b) -> add(normalize=false,[b,a])
cross(conservative=true,duration=start_next,minimum = -1.0,fader, s)
end
# Crossfade
input2=our_crossfade(start_next=6.0,fade_in=3.0,fade_out=3.0, input2)
# Compress/Normalize (if end user asks we normalize and compress)
if rmeffect == "1" then
input2 = nrj(input2)
end
# Managing meta
input2 = rewrite_metadata([("artist",'$(if
$(display_artist),"$(display_artist)","$(artist)")'),("title", '$(if
$(display_title),"$(display_title)","$(title)")'),("album", '$(if
$(display_id),"$(display_id)","$(album)")')],input2)
# Send info to Radionomy webservices
input2 = on_metadata(fun (meta) -> system("curl
http://webservices.tld?param="^fluxid^","^quote(meta["album"])^" &"),input2)
# This defines a source waiting on mount point /test-harbor
live = input.harbor(buffer=7.0, max=20.0, "/")
#Compress/Normalize live flux (if end user asks for it)
if liveeffect == "1" then
live = nrj(live)
end
# Define crossfade RM to Live
def livefade(previous,next)
add([fade.initial(duration=4.,next),fade.final(duration=1.,previous)])
end
# Define crossfade Live to RM
def backlivefade(previous,next)
source.skip(next)
add([fade.initial(duration=4.,type="exp",next), previous])
end
# Info sent to webservices during live
live = on_metadata(fun (meta) -> system("curl --data-urlencode
"^"string="^fluxid^"£"^quote(meta["song"])^"£"^quote(meta["title"])^"£"^quote(meta["artist"])^"£"^quote(meta["duration"])^"£"^quote(meta["album"])^"
otherservices.tld/live &"),live)
# Define source order
live = fallback (track_sensitive=false,transitions=[livefade,backlivefade],
[live, input2])
# Output to icecast
output.icecast.mp3(mount=mountpoint, host="localhost", port=8080,
password="secretone", genre=""^genre, url="http://www.radionomy.com";,
name=""^name,description = ""^finaldesc,restart=true, mksafe(live))
HTH,
Jef
On 26 Mar 2011, at 09:33, Davit Barbakadze wrote:
> Hi Jean,
>
> How do you manage to run 140 Liquidsoap instances in parallel? Do you
> mean on single machine, or you have farm? What is the maximum number
> of instances you can run on single machine?
>
> I have 15 on my quad-core dual-processor (2 x Intel(R) Xeon(R) CPU
> E5405 @ 2.00GHz, 8 GB RAM) and it nearly dies already :| Channels are
> stuttering now and then and logs are bloated with "We must catchup..."
> messages.
>
> I should say though, that I decided to run all channels on a single
> process at the moment, since having them separate, kills server even
> faster :|
>
>
> Davit Barbakadze
>
>
>
>
> On Thu, Mar 10, 2011 at 9:03 PM, Jean-Francois Mauguit
> <j...@radionomy.com> wrote:
>> Hello,
>>
>> In fact we are running 140 Liquidsoap instances in parallel on our most
>> recent servers with harbor input on each instance. We don't have any
>> problems with it :-)
>>
>> HTH
>>
>> Jef
>>
>> On 10 Mar 2011, at 17:59, David Baelde wrote:
>>
>>> Hi,
>>>
>>> It's perfectly possible to have 16 liquidsoap, each one having an
>>> harbor input. (In fact, radionomy does something similar.) You can
>>> also have 8 liquidsoap instances, each one having two harbor inputs.
>>> It does not matter if they are all active at the same time or not. All
>>> that matters is that each one has a different port. So in the first
>>> script you'll have for example input.harbor(port=8005,mount1), in the
>>> second input.harbor(port=8006,mount2) etc. The mount names can be the
>>> same, since they are on different harbor ports.
>>
>>
>>
--
Jean-Francois Mauguit - Radionomy CTO
Boulevard International 55 K
1070 Bruxelles - Belgique
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