script for starting clients on all available hosts

In contrast to runcampaign.sh this does not start a campaign server.
TODO: use this from runcampaign.sh

git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1675 8c4709b5-6ec9-48aa-a5cd-a96041d1645a

scripts/start-clients.sh

@@ -0,0 +1,36 @@
+#!/bin/bash
+#
+# start-clients.sh
+# Launches clients on all $FAIL_EXPERIMENT_HOSTS.
+#
+# Prerequisites:
+# - (possibly overridden) env variables from fail-env.sh
+#
+
+set -e
+# determine absolute path of this script
+SCRIPTDIR=$(readlink -f $(dirname $0))
+# env variable defaults
+source $SCRIPTDIR/fail-env.sh
+
+CMD="killall -q client.sh || true; cd $FAIL_EXPERIMENT_TARGETDIR; ./multiple-clients.sh"
+CONNECTION_ATTEMPTS=2
+SSH="ssh -o BatchMode=yes -o ConnectTimeout=60 -o ConnectionAttempts=$CONNECTION_ATTEMPTS"
+
+for h in $FAIL_EXPERIMENT_HOSTS
+do
+	if [[ $h == *:* ]]
+	then
+		# split in host:nclients
+		NCLIENTS=${h#*:}
+		h=${h%:*}
+	else
+		NCLIENTS=
+	fi
+
+	$SSH $h "$CMD $NCLIENTS" &
+	#disown
+done
+
+wait
+echo 'done.'