Troubleshooting

How to check if Fleio connects successfully to the OpenStack API

After you fill in the details on the OpenStack settings Credentials tab press Test connection to see if credentials are working. Then by pressing Save & sync or Sync button all the OpenStack objects (projects, instances, volumes, networks etc.) from the Fleio database are reset and the list of objects with states is retrieved from OpenStack.

You can then go to Cloud > Instances and check list of instances (or volumes, or some other resource that you know has elements in OpenStack) and see if there are any objects present.

How to check if OpenStack notifications are working

Fleio needs access to the OpenStack API to launch commands like create compute instance, volume etc. Fleio also requires notification messages from the OpenStack internal RabbitMQ queue to update the cloud objects state.

You can confirm that Fleio receives notifications by shutting down an existing instance and see the instance status being updated in Fleio. Follow these steps:

  1. Go to Fleio /staff panel
  2. Sync OpenStack objects as described in section How to check if Fleio connects successfully to the OpenStack API
  3. Assuming you have a running instance, shut it down
  4. Wait 20-30 seconds or so for the instance to reach the STOPPED state. If your instance still shows as RUNNING state in Fleio, while you can see the instance being SHUTOFF in OpenStack ( openstack server list --all-projects, that means that notifications are not working.

These steps apply for other operations as well: create instance but it never shows up in Fleio, while you can see it created in OpenStack, or instance start for a shutoff instance.

To repeat these steps, make sure you start from a synced database by pressing Sync on the OpenStack Credentials tab.

Troubleshoot email messages are not sent

You can check if your email settings are configured correctly in settings.py by trying to send an email message from the Django shell command line utility.

SSH to the server where Fleio is installed and run these commands in bash:

# following line is only needed on CentOS 7
if [ -e /opt/rh/rh-python35/enable ] ; then . /opt/rh/rh-python35/enable; fi
# activate the Python virtual environment
. /var/webapps/fleio/env/bin/activate
# move to the Django backend project directory
cd /var/webapps/fleio/project/fleio
# start the Django shell
django shell
# you should see the shell prompt now: >>>
# let's try to send an email
# !!! replace with from and to email addresses accepted by your mail server
from django.core.mail import send_mail
send_mail('Subject', 'message', 'from@example.com', ['to@example.com'], fail_silently=False)
# exit Django shell by typing CTRL_D or exit()
exit()

If mail sending fails, you’ll see the error and a stack trace, try to fix settings in settings.py. See Fleio backend settings file location:.

All email settings are explained in the Django documentation: https://docs.djangoproject.com/en/dev/topics/email/

If there’s no error and “1” is displayed instead, the email was successfully sent and you should analyze the mail server log if you do not receive the test message.

Troubleshoot database errors on upgrade

Fleio database must be created with utf8 character set. You can check the character set by running the following query on your database (usually fleio):

use fleio;
SELECT @@character_set_database, @@collation_database;

If your database contains tables that are using a different character set you will have to update the tables so it will have the UTF8 set. This can be done with the following steps:

  1. Export current DB
  2. Drop and recreate the databse with UTF8
  3. Adjust the dump so all the create table statements will use UTF8
  4. Import the database
  5. Run migration using cd /var/webapps/fleio && source env/bin/activate && cd project && django migrate

How to enable debugging

If you’re in a development environment (not a production server) you can also enable debugging from settings.py file to get more information in browser when you’re accessing an invalid URL and in case an error occurs during development:

DEBUG = True

Now you’ll be able to to see the backend API nicely formatted and even perform POST, PUT, and DELETE requests. Note that you need to be authenticated as

Here’s an example of PHP code calling the Fleio API: https://github.com/fleio/fleio-whmcs.

You can also run Django commands from the command line after you activate the Fleio Python virtual environment and move to the Django project directory:

# activate the virtualenv
source /var/webapps/fleio/env/bin/activate
# move to the Django project directory
cd /var/webapps/fleio/project/
# see available commands
django -h
# you can reset a user's password
django changepassword USERNAME_HERE
# or create a superuser (staff user)
django createsuperuser

For more information regarding the Django command line see https://docs.djangoproject.com/en/dev/ref/django-admin/

Ceilometer troubleshooting

If you properly configured Ceilometer / gnocchi, the metrics should show correctly in the instance’s “Metrics” tab. However, if there are no metrics shown even after a few hours after your deployed the instance, you might have some configuration issues.

Run the following commands:

Measures:
    gnocchi measures show --resource-id=`gnocchi resource list | grep instance_network_interface | tail -n 1 | awk '{print $2}'` --aggregation=max --granularity=3600  network.incoming.bytes
Metric:
    gnocchi metric show --resource-id=`gnocchi resource list | grep instance_network_interface | tail -n 1 | awk '{print $2}'` network.incoming.bytes
Archive-policy settings:
    gnocchi archive-policy show `gnocchi metric show --resource-id=\`gnocchi resource list | grep instance_network_interface | tail -n 1 | awk '{print $2}'\` network.incoming.bytes | grep archive_policy | awk '{print $4}'`

If the measures command returns “Aggregation method ‘max’ at granularity ‘3600.0’ for metric xxxxxx does not exist (HTTP 404)” you must check the archive policy granulation. You should have 1h granulation defined, which was configured with:

gnocchi archive-policy create -d granularity:5m,points:290 -d granularity:30m,points:336 -d granularity:1h,points:768 -m max -m mean -m sum your_policy

The next step is to run the metrics command and check if your resource is using the correct policy. In the output you should be able to identify the archive_policy/name and you must assure that is the correct one.

If all is correct by now, you need to run the third command. This should confirm you that your archive policy does have the correct aggregation methods and it has the correct granularity. If it doesn’t have the aggregation_methods max, sum, mean and the correct granularity (shown bellow), please check your configuration.

Bellow you will find the correct archive policy:

+---------------------+-----------------------------------------------------------------+
| Field               | Value                                                           |
+---------------------+-----------------------------------------------------------------+
| aggregation_methods | max, sum, mean                                                  |
| back_window         | 0                                                               |
| definition          | - points: 290, granularity: 0:05:00, timespan: 1 day, 0:10:00   |
|                     | - points: 336, granularity: 0:30:00, timespan: 7 days, 0:00:00  |
|                     | - points: 768, granularity: 1:00:00, timespan: 32 days, 0:00:00 |
| name                | your policy                                                     |
+---------------------+-----------------------------------------------------------------+

Another thing that needs to be checked is the pipeline.yaml file (see pipeline.yaml). In that file, you should check the publishers archive policy (in our example described in the configuring guide is fleio_policy: gnocchi://?filter_project=service&archive_policy=fleio_policy). This does not needs to be persistent across all regions, but it should be the same in both ceilometer’s pipeline.yaml file and in gnocchi.

If they are different, we recommend to clear all the metrics with ceilometer disabled by running this command:

set -e; set -x; for host in $(ssh $(awk '/utility/ {print $NF}' /etc/hosts) "source openrc; openstack hypervisor list -f value -c 'Hypervisor Hostname'"); do ssh $host systemctl stop ceilometer-polling; ssh $host systemctl stop ceilometer-agent-notification; done; ssh $(awk '/utility/ {print $NF}' /etc/hosts) "source openrc; gnocchi archive-policy-rule delete default"; ssh $(awk '/utility/ {print $NF}' /etc/hosts) "source openrc; gnocchi archive-policy create -d granularity:5m,points:290 -d granularity:30m,points:336 -d granularity:1h,points:768 -m max -m mean -m sum fleio; gnocchi archive-policy-rule create -a fleio -m \\* default"; for gnocchi_id in $(ssh $(awk '/utility/ {print $NF}' /etc/hosts) "source openrc; gnocchi resource list -f value -c id"); do ssh $(awk '/utility/ {print $NF}' /etc/hosts) "source openrc; gnocchi resource delete $gnocchi_id"; done; for host in $(ssh $(awk '/utility/ {print $NF}' /etc/hosts) "source openrc; openstack hypervisor list -f value -c 'Hypervisor Hostname'"); do ssh $host systemctl start ceilometer-polling; ssh $host systemctl start ceilometer-agent-notification; done

After that, you will have to follow the guide for Ceilometer configuration.