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copied!<p>Even if Jacob will probably never read this, visitors from the future might appreciate what I'm going to write.</p> <p>I believe I know what's wrong, and it looks like a Debian-specific problem, at least verified on Ubuntu 11.04 and Debian Squeeze.</p> <p>I traced the execution from my <code>/etc/default/varnish</code> that contains the <code>$DAEMON_OPTS</code> to the init script. In the init script <code>/etc/init.d/varnish</code>, the <code>start_varnishd()</code> function is:</p> <pre> start_varnishd() { log_daemon_msg "Starting $DESC" "$NAME" output=$(/bin/tempfile -s.varnish) if start-stop-daemon \ --start --quiet --pidfile ${PIDFILE} --exec ${DAEMON} -- \ -P ${PIDFILE} ${DAEMON_OPTS} > ${output} 2>&1; then log_end_msg 0 else log_end_msg 1 cat $output exit 1 fi rm $output } </pre> <p>So I modified it to print the full <code>start-stop-daemon</code> command line, like:</p> <pre> start_varnishd() { log_daemon_msg "Starting $DESC" "$NAME" output=$(/bin/tempfile -s.varnish) + echo "start-stop-daemon --start --quiet --pidfile ${PIDFILE} --exec ${DAEMON} -- -P ${PIDFILE} ${DAEMON_OPTS} > ${output} 2>&1" if start-stop-daemon \ --start --quiet --pidfile ${PIDFILE} --exec ${DAEMON} -- \ -P ${PIDFILE} ${DAEMON_OPTS} > ${output} 2>&1; then log_end_msg 0 </pre> <p>So I got a command line echoed on STDOUT, and copied-pasted it into my shell. And, surprise! It worked. <strong>WTF?</strong></p> <p>Repeated again to be sure. Yes, it works. Mmh. Could it be another of those bash/dash corner cases? Let's try feeding the start-stop-daemon command line to <code>bash</code>, and see how it reacts:</p> <pre> start_varnishd() { log_daemon_msg "Starting $DESC" "$NAME" output=$(/bin/tempfile -s.varnish) if bash -c "start-stop-daemon \ --start --quiet --pidfile ${PIDFILE} --exec ${DAEMON} -- \ -P ${PIDFILE} ${DAEMON_OPTS} > ${output} 2>&1"; then log_end_msg 0 else log_end_msg 1 cat $output exit 1 fi rm $output } </pre> <p>Yes, <strong>it works just fine</strong>, at least for my case. Here's the relevant part of my <code>/etc/default/varnish</code>:</p> <pre> ... ## Alternative 2, Configuration with VCL # # Listen on port 6081, administration on localhost:6082, and forward to # one content server selected by the vcl file, based on the request. Use a 1GB # fixed-size cache file. # DAEMON_OPTS="-a :6081 \ -T localhost:6082 \ -f /etc/varnish/geoip-example.vcl \ -S /etc/varnish/secret \ -s malloc,100M \ -p 'cc_command=exec cc -fpic -shared -Wl,-x -L/usr/include/GeoIP.h -lGeoIP -o %o %s'" ... </pre> <p>I've seen posts where someone tried to work around this problem by moving the compile command into a separated shell script. Unfortunately that doesn't change the fact that <code>start-stop-daemon</code> is going to pass the <code>$DAEMON_OPTS</code> var through <code>dash</code>, and that will result in mangled options.</p> <p>Would be something along the lines of:</p> <pre> -p 'cc_command=exec /etc/varnish/compile.sh %o %s'" </pre> <p>And then the <code>compile.sh</code> script as:</p> <pre> #!/bin/sh cc -fpic -shared -Wl,-x -L/usr/include/GeoIP.h -lGeoIP -o $@ </pre> <p>but it doesn't work, so just patch your init scripts, and you're good to go! Hope you can find this information useful.</p>

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