This repository sets up 3 LXC containers containing a Galera cluster, a container running HAProxy, and can run a set of benchmarks against the Galera cluster.
To set up the LXC containers, run the create-env.sh script after pulling this repository:
git clone [email protected]:jaypipes/galera-update-bench
cd galera-update-bench
./scripts/create-env.sh
Output of the create-env.sh script should look something like the following:
jaypipes@minty:~/repos/galera-update-bench$ ./scripts/create-env.sh
[sudo] password for jaypipes:
Started haproxy container...
Started Galera cluster node container #1...
Started Galera cluster node container #2...
Started Galera cluster node container #3...
NAME STATE IPV4 IPV6 GROUPS AUTOSTART
------------------------------------------------------------
base-container STOPPED - - - NO
galera1 RUNNING 10.0.3.245 - - NO
galera2 RUNNING 10.0.3.19 - - NO
galera3 RUNNING 10.0.3.101 - - NO
haproxy RUNNING 10.0.3.74 - - NO
Added host keys for haproxy cluster node container...
Added host keys for Galera cluster node container #1...
Added host keys for Galera cluster node container #2...
Added host keys for Galera cluster node container #3...
Note that the create-env.sh script automatically adds the host keys
for each of the LXC containers to your SSH known_hosts file, so to
log into one of the Galera LXC nodes, simply SSH to it as the ubuntu user:
jaypipes@spearmint$ ssh [email protected]
Welcome to Ubuntu 14.04.1 LTS (GNU/Linux 3.13.0-37-generic x86_64)
* Documentation: https://help.ubuntu.com/
System information as of Sun Feb 22 20:30:03 EST 2015
System load: 0.33 Processes: 26
Usage of /: 2.0% of 1.61TB Users logged in: 0
Memory usage: 35% IP address for eth0: 10.0.3.245
Swap usage: 0%
Graph this data and manage this system at:
https://landscape.canonical.com/
Get cloud support with Ubuntu Advantage Cloud Guest:
http://www.ubuntu.com/business/services/cloud
Last login: Sun Feb 22 20:30:03 2015 from 10.0.3.1
Once the LXC containers are ready, you can install the Galera and HAProxy software within the containers using the Ansible playbooks:
pushd ansible
ansible-playbook -i hosts site.yml
popd
You may execute commands, including checking for the status of
the Galera cluster, using lxc-attach -n <CONTAINER_NAME> -- <COMMAND>:
jaypipes@spearmint$ sudo lxc-attach -n galera1 -- mysql -uroot -e "show global status like 'wsrep_cluster%'"
+--------------------------+--------------------------------------+
| Variable_name | Value |
+--------------------------+--------------------------------------+
| wsrep_cluster_conf_id | 2 |
| wsrep_cluster_size | 3 |
| wsrep_cluster_state_uuid | 471b8e63-bafb-11e4-a9c0-d67ae6216c67 |
| wsrep_cluster_status | Primary |
+--------------------------+--------------------------------------+
To run the benchmark scripts, execute the scripts/benchmark.sh script:
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