demo/benchmark/replay.sh
#!/bin/bash
# This script will launch a cluster of Lachesis nodes
# The parameter N = number of nodes to run
set -e
# number of nodes N
N=5
LIMIT_CPU=$(echo "scale=2; 1/$N" | bc)
LIMIT_IO=$(echo "500/$N" | bc)
#
PROG=lachesis
EXEC=../../build/lachesis
# default ip using localhost
IP=127.0.0.1
# default port PORT
# the actual ports are PORT+1, PORT+2, etc (18541, 18542, 18543, ... )
PORT=18540
LACHESIS_BASE_DIR=/tmp/lachesis-demo-replay/datadir
rm -rf ${LACHESIS_BASE_DIR} > /dev/null
mkdir ${LACHESIS_BASE_DIR}
declare -a pids
# Set up plg tool
cp ${GOPATH}/src/github.com/Fantom-foundation/tun-replay/build/plg .
PLG=./plg
#echo "PLG=${PLG}"
# Function to be called when user press ctrl-c.
ctrl_c() {
echo "Shell terminating ..."
for pid in "${pids[@]}"
do
echo "Killing ${pid}..."
kill -9 ${pid}
# Suppresses "[pid] Terminated ..." message.
wait ${pid} &>/dev/null
done
exit;
}
trap ctrl_c SIGHUP SIGINT
echo "You may press ctrl-c to kill all started processes..."
declare -a progs
echo -e "\nStart $N nodes:\n"
for i in $(seq $N)
do
port=$((PORT + i))
localport=$((5050 + i))
prog="exec${i}.sh"
echo "#!/bin/bash" > ${prog}
echo "${EXEC} --fakenet $i/$N --port ${localport} \
--http --http.api \"eth,ftm,debug,admin,web3\" --http.port ${port} --nousb --verbosity 3 \
--datadir ${LACHESIS_BASE_DIR}/lach$i" >> ${prog}
chmod +x ${prog}
progs+="\"./${prog}\" "
done
finalcmd="sudo ${PLG} --record --subnet 127.0.0.1/24 -f dump.traffic ${progs}"
echo -e "Started replaying"
echo -e "${finalcmd}"
# execute the plg command
# sudo ${PLG} --record --subnet 10.0.0.0/24 -f dump.traffic ${progs}
sudo ${finalcmd}
# now connecting the nodes
attach_and_exec() {
local URL=$1
local CMD=$2
for attempt in $(seq 20)
do
if (( attempt > 5 ));
then
echo " - attempt ${attempt}: " >&2
fi;
res=$("${EXEC}" --exec "${CMD}" attach http://${URL} 2> /dev/null)
if [ $? -eq 0 ]
then
#echo "success" >&2
echo $res
return 0
else
#echo "wait" >&2
sleep 1
fi
done
echo "failed RPC connection to ${NAME}" >&2
return 1
}
echo -e "\nConnect nodes to ring:\n"
for i in $(seq $N)
do
j=$((i % N + 1))
echo " getting node-$j address:"
url=${IP}:$((PORT + j))
echo " at url: ${url}"
enode=$(attach_and_exec ${url} 'admin.nodeInfo.enode')
echo " p2p address = ${enode}"
echo " connecting node-$i to node-$j:"
url=${IP}:$((PORT + i))
echo " at url: ${url}"
res=$(attach_and_exec ${url} "admin.addPeer(${enode})")
echo " result = ${res}"
done
echo
echo "Sleep for 10000 seconds..."
sleep 10000