demo/start.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
PORT=4000
declare -r LACHESIS_BASE_DIR=/tmp/lachesis-demo
echo -e "\nStart $N nodes:"
for i in $(seq $N)
do
port=$((PORT + i))
localport=$((5050 + i))
${EXEC} \
--fakenet $i/$N \
--port ${localport} --http --http.api "eth,ftm,debug,admin,web3,personal,net,txpool" --http.port ${port} --nousb --verbosity 3 \
--datadir "${LACHESIS_BASE_DIR}/datadir/lach$i" &
echo -e "Started lachesis client at ${IP}:${port}"
done
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