Cloudify cluster day 2 operations

Get the latest docs.

You are looking at documentation for an older release. Not what you want? Use the version selector on the top banner or click here.

Introduction

Cloudify HA solution can contains three different clusters of database nodes, message queue brokers and Cloudify Managers. This require the ability to manage those cluster, which include add/removing/listing/custom-action to the cluster.

Cloudify management service operations

For removing a management service cluster node, please run on a management node (not the one you wish to remove):
```
cfy cluster remove <A resolvable hostname>
```
For adding a management service cluster node, please install the new node on the same network settings as in Cloudify management service nodes.

Message queue cluster operations

A new broker node (an installed node) can be added to the cluster by running the following:
- Run the following command on the newly installed node to connect a broker to the cluster:
```
cfy_manager brokers add -j\--join-node <A resolvable hostname  or IP of an existing member of the cluster>
```
- Run the following command to register the new broker node at the Cloudify management service:
```
cfy cluster brokers add <new broker name> <new broker address>
```
Listing all the current message queue brokers in the cluster is retrieved by running the following command:
```
   cfy_manager brokers list
```
An existing broker node can be removed from the cluster by running the following command:
- First the broker node should be uninstalled, please run the following:
Please note that it's recommended to have at least three node cluster.
```
   cfy_manager remove
```
- Run the following command to remove the broker from the cluster, which should be run from one of the remaining cluster nodes:
```
cfy_manager brokers remove -r\--remove-node <nodename>
```
- Run the following command to unregister the new broker node at the Cloudify management service:
```
cfy cluster brokers remove <broker name>
```

Database cluster operations

Listing all the current database nodes in the cluster is retrieved by running the following command:
```
cfy_manager dbs list
```
A new database node (an installed node) can be added to the cluster by running the following command:
- Database’s node id can be obtained by running cfy_manager node get-id.
```
cfy_manager dbs add -a\--address <Node address> -i\--node-id <Node's cloudify node id> -n\--hostname <node's hostname>
```
An existing database node can be removed from the cluster by running the following command:
- Database’s node id can be obtained by running cfy_manager node get-id.
```
cfy_manager dbs remove -a\--address <node's address> -i\--node-id <Node's cloudify node id>
```
If a database node becomes unhealthy according to the cluster status, it can be re-initialized by running the following command:
```
cfy_manager dbs reinit -a\--address <node's address>
```
For switching the current database master node in the database cluster by running the following command:
```
cfy_manager dbs set-master -a\--address <node's address>
```
In case there are changes to the cluster structure (a node has been added or removed) and Cloudify’s Status Reporter is among the installed services, trigger a monitoring configuration update:
```
cfy cluster db-nodes update
```