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######### | |
This is a step by step instruction for running a cluster of 3 Scylla nodes and a Scylla monitoring servers, all as Docker images on the same box. | |
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# prerequisites (centos 7) | |
sudo yum install tmux emacs git wget -y | |
sudo tee /etc/yum.repos.d/docker.repo <<-'EOF' | |
[dockerrepo] | |
name=Docker Repository | |
baseurl=https://yum.dockerproject.org/repo/main/centos/7/ | |
enabled=1 | |
gpgcheck=1 | |
gpgkey=https://yum.dockerproject.org/gpg | |
EOF | |
sudo yum install docker-engine -y | |
sudo service docker start | |
sudo chkconfig docker on | |
### source: https://docs.docker.com/engine/installation/linux/centos/ | |
# Start scylla cluster | |
sudo docker run --name some-scylla -h some-scylla -d scylladb/scylla --smp 1 --memory 1G | |
export SEED=$(sudo docker inspect --format='{{ .NetworkSettings.IPAddress }}' some-scylla) | |
sudo docker run --name some-scylla2 -h some-scylla2 -d scylladb/scylla --seeds="$SEED" --smp 1 --memory 1G | |
sudo docker run --name some-scylla3 -h some-scylla3 -d scylladb/scylla --seeds="$SEED" --smp 1 --memory 1G | |
# start monitoring server | |
git clone https://github.com/scylladb/scylla-grafana-monitoring.git | |
cd scylla-grafana-monitoring | |
## extract Scylla IPs and update prometheus.yml | |
export SCYLLA_IPS=$(for i in $(sudo docker ps -a | grep "scylla" | cut -f1 -d" "); do echo $i; done | xargs -i sudo docker inspect --format='{{ .NetworkSettings.IPAddress }}' {} | sed -r 's/(.*)/"\1:9103\"/' | paste -d, -s) | |
sed -i "s/targets:\s*\[.*\]/targets: [$SCYLLA_IPS]/" prometheus/prometheus.yml | |
## Start monitoring | |
./start-all.sh | |
# go to ip:3000 to see the chart | |
# run CQLSh | |
docker exec -it some-scylla cqlsh | |
# run nodetool | |
docker exec -it some-scylla nodetool status | |
# run stress | |
sudo docker exec -it some-scylla cassandra-stress write -node $SEED | |
(source: https://github.com/scylladb/scylla/blob/branch-1.3/docs/docker-hub.md#how-to-use-this-image) |
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Need to add sudo to
docker exec -it some-scylla cqlsh > sudo docker exec -it some-scylla cqlsh
docker exec -it some-scylla nodetool status > sudo docker exec -it some-scylla nodetool status