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From: "Vaillancourt, Tim" <TVaillancourt@ea.com>
To: Leif Hedstrom <zwoop@apache.org>,
        "users@trafficserver.apache.org"
	<users@trafficserver.apache.org>
Date: Thu, 5 Apr 2012 17:19:05 -0700
Subject: RE: Multiple Trafficserver Instances on one system
Thread-Topic: Multiple Trafficserver Instances on one system
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Hey Leif/list,

> I am e-mailing the list due to an issue (or PEBKAC) I am experiencing=20
> when running several instances of Trafficserver on one system, under=20
> custom directories.
>
> No PEBKAC, not even an ID-10T issue. I think we simply don't support=20
> what you are trying to do :-/. We used to have some environment=20
> variables dealing with this, but as far as I can tell, it's all=20
> eliminated with code like

Good news you DO support what I am trying to do, and this WAS a PEBKAC :).

I was setting the environment with my 'ts-defaults' script, but was not exp=
orting the values. After adding 'export VALUE=3Dsomething' to the beginning=
 of each variable I override, everything magically worked as planned once I=
 cleaned up my mess of guesses to fix this.

Unresolved issues bother the hell out of me, so in case you guys are the sa=
me way I wanted you to know that my logic was broken and not your code :).

For those interested, I was able to clean up my implementation once I got t=
his working a lot. I removed the modifications I made to bin/trafficserver =
("added if test -e <ts-defaults>; then . <ts-defaults>; fi" for my custom-p=
ath defaults file) and merged the environment variable setting I did in 'ts=
-defaults' script into a single init script. Now the modified variables are=
 exported before bin/trafficserver is ran, who will use those values to sta=
rt the 3 daemons:

"#!/bin/bash

set -e

export TS_ROOT=3D/opt/instances/ts_uploadprx

export TC_NAME=3Dtraffic_cop
export TC_DAEMON=3D$TS_ROOT/bin/$TC_NAME
export TC_DAEMON_ARGS=3D""

export TM_NAME=3Dtraffic_manager
export TM_DAEMON=3D$TS_ROOT/bin/$TM_NAME
export TM_DAEMON_ARGS=3D""

export TS_NAME=3Dtraffic_server
export TS_DAEMON=3D$TS_ROOT/bin/$TS_NAME
export TS_DAEMON_ARGS=3D""

export TC_PIDFILE=3D$TS_ROOT/logs/cop.lock
export TM_PIDFILE=3D$TS_ROOT/logs/manager.lock
export TS_PIDFILE=3D$TS_ROOT/logs/server.lock
export PIDFILE_CHECK_RETRIES=3D30

export STDOUTLOG=3D$TS_ROOT/logs/$TS_NAME.stdout
export STDERRLOG=3D$TS_ROOT/logs/$TS_NAME.stderr

$TS_ROOT/bin/trafficserver $@"

Using this, trafficserver spawns entirely out of my special instance dir wi=
th no other modifications! I am sorry to waste the lists time on this now  =
non-issue and am glad to see that this use case is in fact 100% supported b=
y trafficserver!

Thanks everyone, and have a nice Easter weekend! We look forward to impleme=
nting ATS in the future.

Tim Vaillancourt
tvaillancourt@ea.com
Electronic Arts - www.ea.com