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nimbus-eth2
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simulation: optional multitail support (#128) 

demo: https://asciinema.org/a/228550
This commit is contained in:
Ștefan Talpalaru 2019-02-20 03:22:25 +01:00 committed by Jacek Sieka
parent 132f1147a2
commit 8859a4b56c
2 changed files with 44 additions and 15 deletions
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6
README.md
View File

@ -59,6 +59,12 @@ Additionally, you can run our simulation which generates a genesis file from som
bash tests/simulation/start.sh
```
You can also separate the output from each beacon node in its own panel, using [multitail](http://www.vanheusden.com/multitail/):
```bash
USE_MULTITAIL="yes" ./tests/simulation/start.sh
```
You can find out more about it in the [development update](https://our.status.im/nimbus-development-update-2018-12-2/).
## License

53
tests/simulation/start.sh
View File

@ -53,12 +53,18 @@ if [ -f $MASTER_NODE_ADDRESS_FILE ]; then
rm $MASTER_NODE_ADDRESS_FILE
fi
# multitail support
MULTITAIL="${MULTITAIL:-multitail}" # to allow overriding the program name
USE_MULTITAIL="${USE_MULTITAIL:-no}" # make it an opt-in
type "$MULTITAIL" &>/dev/null || USE_MULTITAIL="no"
COMMANDS=()
for i in $(seq 0 9); do
BOOTSTRAP_NODES_FLAG="--bootstrapNodesFile:$MASTER_NODE_ADDRESS_FILE"
if [[ "$i" == "0" ]]; then
BOOTSTRAP_NODES_FLAG=""
else
elif [ "$USE_MULTITAIL" = "no" ]; then
# Wait for the master node to write out its address file
while [ ! -f $MASTER_NODE_ADDRESS_FILE ]; do
sleep 0.1
@ -67,21 +73,38 @@ for i in $(seq 0 9); do
DATA_DIR=$SIMULATION_DIR/node-$i
$BEACON_NODE_BIN \
--dataDir:"$DATA_DIR" \
--validator:"$SIMULATION_DIR/validator-${i}1.json" \
--validator:"$SIMULATION_DIR/validator-${i}2.json" \
--validator:"$SIMULATION_DIR/validator-${i}3.json" \
--validator:"$SIMULATION_DIR/validator-${i}4.json" \
--validator:"$SIMULATION_DIR/validator-${i}5.json" \
--validator:"$SIMULATION_DIR/validator-${i}6.json" \
--validator:"$SIMULATION_DIR/validator-${i}7.json" \
--validator:"$SIMULATION_DIR/validator-${i}8.json" \
--validator:"$SIMULATION_DIR/validator-${i}9.json" \
CMD="$BEACON_NODE_BIN \
--dataDir:\"$DATA_DIR\" \
--validator:\"$SIMULATION_DIR/validator-${i}1.json\" \
--validator:\"$SIMULATION_DIR/validator-${i}2.json\" \
--validator:\"$SIMULATION_DIR/validator-${i}3.json\" \
--validator:\"$SIMULATION_DIR/validator-${i}4.json\" \
--validator:\"$SIMULATION_DIR/validator-${i}5.json\" \
--validator:\"$SIMULATION_DIR/validator-${i}6.json\" \
--validator:\"$SIMULATION_DIR/validator-${i}7.json\" \
--validator:\"$SIMULATION_DIR/validator-${i}8.json\" \
--validator:\"$SIMULATION_DIR/validator-${i}9.json\" \
--tcpPort:5000$i \
--udpPort:5000$i \
--stateSnapshot:"$SNAPSHOT_FILE" \
$BOOTSTRAP_NODES_FLAG &
--stateSnapshot:\"$SNAPSHOT_FILE\" \
$BOOTSTRAP_NODES_FLAG"
if [ "$USE_MULTITAIL" != "no" ]; then
if [ "$i" = "0" ]; then
SLEEP="0"
else
SLEEP="1"
fi
# "multitail" closes the corresponding panel when a command exits, so let's make sure it doesn't exit
COMMANDS+=( " -cT ansi -t 'node #$i' -l 'sleep $SLEEP; $CMD; echo [node execution completed]; while true; do sleep 100; done'" )
else
eval $CMD &
fi
done
wait # Stop when all nodes have gone down
if [ "$USE_MULTITAIL" != "no" ]; then
eval $MULTITAIL -s 2 -M 0 -x \"beacon chain simulation\" "${COMMANDS[@]}"
else
wait # Stop when all nodes have gone down
fi