Manually deploy DataStax Agents from Debian

It is preferable to install DataStax Agents automatically. However, when automatic DataStax Agent installation is unsuccessful, manually install them.

This procedure uses APT packages to manually install DataStax Agents on Linux nodes running DataStax Enterprise (DSE) clusters. Use this procedure if your DSE instance was also installed with a Debian package. Otherwise, choose one of the following procedure types that does match:

RPM
tarball

Prerequisites

Root or sudo access to the machines where the DataStax Agents are installed.
The DSE cluster is up and running.
OpsCenter is installed and configured.
JMX connectivity is enabled on each node in the cluster.

The location of the opscenterd.conf file depends on the type of installation:

Package installations: /etc/opscenter/opscenterd.conf
Tarball installations: install_location/conf/opscenterd.conf

The location of the address.yaml file depends on the type of installation:

Package installations: /var/lib/datastax-agent/conf/address.yaml
Tarball installations: install_location/conf/address.yaml

Procedure

End User License Agreement (EULA). By downloading this DataStax product, you agree to the terms of the EULA.

In a terminal:

Add the DataStax repository to the /etc/apt/sources.list.d/datastax.sources.list file (if not already done):

echo "deb https://debian.datastax.com/enterprise \
stable main" | \
sudo tee -a /etc/apt/sources.list.d/datastax.sources.list

Add the DataStax repository key to your Aptitude trusted keys:

curl -L https://debian.datastax.com/debian/repo_key | sudo apt-key add -

Install the DataStax agent:
```
sudo apt-get update
```
```
sudo apt-get install datastax-agent
```
If using DSE 5.1 or earlier, you must install an earlier version of the DataStax Agent. See DataStax OpsCenter compatibility with DSE.
```
sudo apt-get install datastax-agent=6.8.VERSION
```
Replace VERSION with the version you want to install.

Example:
```
sudo apt-get install datastax-agent=6.8.43
```
In DataStax Agent configuration, set stomp_interface to the IP address that OpsCenter is using. You might have to create the address.yaml file.
```
echo "stomp_interface: reachable_opscenterd_ip" | sudo tee -a /var/lib/datastax-agent/conf/address.yaml
```
If SSL communication is enabled in opscenterd.conf, use SSL in DataStax Agent configuration:
```
echo "use_ssl: 1" | sudo tee -a /var/lib/datastax-agent/conf/address.yaml
```
Start the DataStax agent:
```
sudo service datastax-agent start
```

Manually deploy DataStax Agents from Debian

Prerequisites

Procedure

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