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#DYMENSION | rollapp resync RR

LINKS

https://status.dymension.xyz/
https://portal.dymension.xyz/rollapps
https://docs.dymension.xyz/build/roller
https://medium.com/@dymension/froopyland-is-live-8bf21e9d7046
https://github.com/dymensionxyz/dymension

https://fl.dymscan.live/
https://dymension.explorers.guru/
  1. Backup roller keys and configs on the OLD SERVER
# stop services
sudo systemctl stop da-light-client && journalctl -u da-light-client --no-pager -n 10

sudo systemctl stop sequencer && journalctl -u sequencer --no-pager -n 10

sudo systemctl stop relayer && journalctl -u relayer --no-pager -n 10

sudo systemctl disable da-light-client
sudo systemctl disable sequencer
sudo systemctl disable relayer

# create backup archive 
cd $HOME
mkdir -p $HOME/_tar

tar cvf $HOME/_tar/roller_keys_config_backup.tar \
  .roller/config.toml \
  .roller/da-light-node/keys/ \
  .roller/da-light-node/config.toml \
  .roller/hub-keys/ \
  .roller/relayer/config/ \
  .roller/relayer/keys/ \
  .roller/rollapp/config/ \
  .roller/rollapp/keyring-test/

# share tar
cd _tar
$(which python3) -m http.server 8150
  1. Prepare NEW server

install roller binaries

# export ROLLER_RELEASE_TAG="v0.1.15-beta"
curl -L https://dymensionxyz.github.io/roller/install.sh | bash

init roller

# init roller
roller config init rollapp denom

# remove new created keys
rm -r $HOME/.roller/da-light-node/keys
rm -r $HOME/.roller/hub-keys
rm -r $HOME/.roller/relayer/keys
rm -r $HOME/.roller/rollapp/keyring-test
rm -r $HOME/.roller/rollapp/config

download backup

# download backup
cd $HOME
wget **<OLD_SERVER_IP>**:8150/roller_keys_config_backup.tar

# untar
tar xvf roller_keys_config_backup.tar

configure the node to run as non aggregator

# correct paths (in case USER has changed)
sed -i "s|^Home *=.*|Home = \"${HOME}/.roller\"|" $HOME/.roller/config.toml
sed -i "s|^keyring_home_dir *=.*|keyring_home_dir = \"${HOME}/.roller/hub-keys\"|" $HOME/.roller/rollapp/config/dymint.toml

# configure the node to run as non aggregator
sed -i 's/^aggregator *=.*/aggregator = "false"/' $HOME/.roller/rollapp/config/dymint.toml

create services

tee $HOME/da-light-client.service > /dev/null <<EOF
[Unit]
Description=da-light-client
After=network-online.target
[Service]
User=$USER
ExecStart=/usr/local/bin/roller da-light-client start
Restart=on-failure
RestartSec=10
LimitNOFILE=65535
[Install]
WantedBy=multi-user.target
EOF

tee $HOME/sequencer.service > /dev/null <<EOF
[Unit]
Description=sequencer
After=network-online.target
[Service]
User=$USER
ExecStart=/usr/local/bin/roller sequencer start
Restart=on-failure
RestartSec=10
LimitNOFILE=65535
[Install]
WantedBy=multi-user.target
EOF

tee $HOME/relayer.service > /dev/null <<EOF
[Unit]
Description=relayer
After=network-online.target
[Service]
User=$USER
ExecStart=/usr/local/bin/roller relayer start
Restart=on-failure
RestartSec=10
LimitNOFILE=65535
[Install]
WantedBy=multi-user.target
EOF

sudo mv $HOME/da-light-client.service /etc/systemd/system/
sudo mv $HOME/sequencer.service /etc/systemd/system/
sudo mv $HOME/relayer.service /etc/systemd/system/

sudo systemctl enable da-light-client
sudo systemctl enable sequencer
sudo systemctl enable relayer

sudo systemctl daemon-reload

start

# start light node
sudo systemctl start da-light-client && journalctl -u da-light-client --no-pager -n 10
tail -n 100 -f $HOME/.roller/da-light-node/light_client.log

**# wait until light node finish syncing - check logs (wait until new head = sampled header)

#** 2023-09-20T17:06:25.712Z        INFO    header/store    store/store.go:353      new head        {"height": **473749**, "hash": "3AEB9B72344D45FAE79A86B5687"}
# 2023-09-20T17:06:25.938Z        INFO    das     das/worker.go:148       sampled header  {"type": "recent", "height": **473749**, "hash": "3AEB9B72344D46865106EC65687", "square width": 64, "data root": "F30...E0", "finished (s)": 0.226491431}

# start sequencer
sudo systemctl start sequencer && journalctl -u sequencer --no-pager -n 10
tail -n 100 -f $HOME/.roller/rollapp/rollapp.log

# start relayer
sudo systemctl start relayer && journalctl -u relayer --no-pager -n 10
tail -n 100 -f $HOME/.roller/relayer/relayer.log

Check sequencer logs:

syncTarget is the last block

e.g.: level=info msg="Syncing until target[current height 1334 syncTarget **1436**]" module=BlockManager

Wait for sync

after synced successfully stop the node and set aggregator = "true" to start producing blocks

# stop services
sudo systemctl stop da-light-client && journalctl -u da-light-client --no-pager -n 10
sudo systemctl stop sequencer && journalctl -u sequencer --no-pager -n 10
sudo systemctl stop relayer && journalctl -u relayer --no-pager -n 10

# configure the node to run as aggregator (produce blocks)
sed -i 's/^aggregator *=.*/aggregator = "true"/' $HOME/.roller/rollapp/config/dymint.toml

start

# start light node
sudo systemctl start da-light-client && journalctl -u da-light-client --no-pager -n 10
tail -n 100 -f $HOME/.roller/da-light-node/light_client.log

# start sequencer
sudo systemctl start sequencer && journalctl -u sequencer --no-pager -n 10
tail -n 100 -f $HOME/.roller/rollapp/rollapp.log

# start relayer
sudo systemctl start relayer && journalctl -u relayer --no-pager -n 10
tail -n 100 -f $HOME/.roller/relayer/relayer.log

check new blocks produced

curl http://localhost:26657/status | jq