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1. Log in to the monitoring server

2. Edit the Cassandra configuration file at:

   Code Block
   /etc/cassandra/conf/cassandra.yaml

   1. Check the seeds value, which should be the IP of the monitoring VM (or the master VM in the cluster)

      Code Block
      seeds: x.x.x.x

3. Edit the KairosDB properties file at:

   Code Block
   /opt/kairosdb/conf/kairosdb.properties

   1. Remove the this property

      Code Block
      kairosdb.datastore.cassandra.host_list

   2. Add this property and set the value as the IP address of the monitoring server, without the port. Note the cql_ in the name. For example.

      Code Block
      kairosdb.datastore.cassandra.cql_host_list=10.60.10.102

4. Edit the watchtower properties configuration files at:

   Code Block
   /etc/abiquo/watchtower/delorean.conf /etc/abiquo/watchtower/emmett.conf

   1. Set the URL of the mysql server connection (as on the API server) with the IP address of the watchtower server

   .

   2. Set the database credentials as for the Abiquo server

5. Edit the watchtower properties files at:

   Code Block
   /etc/abiquo/watchtower/delorean.

   Restart the server

   Stop the following services:

6. cassandra and check that it is really ded

7. kairosdb

8. abiquo-emmett

9. abiquo-delorean

properties /etc/abiquo/watchtower/emmett.properties

1. Add the port of the RabbitMQ connection to the datanode services server address

   Code Block
   abiquo.rabbitmq.addresses = 10.60.10.102:5672

10. Check the status of the monitoring services

    Code Block
    systemctl status abiquo-delorean.service abiquo-emmett.service kairosdb.service cassandra.service

    1. If they are running, stop monitoring services

       Code Block
       systemctl stop abiquo-delorean.service abiquo-emmett.service kairosdb.service cassandra.service

    2. Check if Cassandra is really dead

       Code Block
       ps auwx | grep cassandra

       Get the process number for Cassandra (the first number in the output of the previous command), and kill it. In this example, Cassandra is process 12345.

       Code Block
       kill -9 12345

    3. Stop the firewalld (and allow connections as required)

       Code Block
       systemctl stop firewalld.service

11. Start cassandra and wait 5 minutes before continuing

12. Start kairosdb and wait 1 minute

13. Start abiquo-emmett and abiquo-delorean (the order is not important here)

14. Start firewalld

The monitoring cluster of one server should now be fully functioning.

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Enable and validate monitoring

To enable monitoring:

1. On the Abiquo Server and the Abiquo Remote Services servers (but not the V2V server), edit the abiquo.properties file and check or set the following properties:

   1. abiquo.monitoring.enabled = yestrue

   2. abiquo.watchtower.host = 10.60.10.102{$MONITORING_IP_ADDRESS}

   3. abiquo.watchtower.port = 36638

2. Restart your Abiquo Tomcat serviceservices.

To validate monitoring:

1. This step assumes you have followed the Abiquo quick tutorial to deploy a VM in Abiquo

2. Create Log in to the Abiquo UI and create a new VM and edit it

3. Go to Monitoring and select the Fetch metrics checkbox and the metrics to display

4. Save the VM Have a cup of tea or coffee while you wait for the VM and deploy it

5. Wait for Abiquo to obtain metrics for the VM (around 5 minutes)

6. On the VM icon, click the graph metrics button to display your VM metrics

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