Canvas LMS - Analytics - Cassandra

Type: Suggestion
Hi everyone,
Here’s my issue.

I am installing the Analytics in Canvas LMS.

Canvas’s own company (Instructure) provides an installation guide on Github (

cd [canvas-rails-root]
git clone [analytics-repo-url] gems/plugins/analytics
bundle update
rake db:migrate
rake canvas:compile_assets

I have followed each and every step. When executing the ‘rake’ command, it gave a problem, so I read that I should use the commands:

RAILS_ENV=production bundle exec rake db:migrate
RAILS_ENV=production bundle exec rake canvas:compile_assets

This configuration also gave an error, due to Cassandra’s configuration.
I assigned the corresponding permissions with ‘sudo chown -R root: canvaslms daemon’, as recommended in another forum.

I did the installation of Cassandra separately, as explained in the official page of Cassandra (

While configuring, I got stuck at the point of running the command ‘nodetool status’ and ‘cqlsh’.
When running ‘nodetool status’ I get the following error: nodetool: Failed to connect to ‘’ - ConnectException: ‘Connection refused (Connection refused)’.
When running ‘cqlsh’, I get the following error: Connection error: (‘Unable to connect to any servers’, {‘’: error (111, "Tried connecting to [(‘’, 9042)] . Last error: Connection refused ")})

Thank you very much in advance if anyone has a solution.

Hi @jose.espinosa,

We have a Support Tool that will gather relevant information for us to analyze your configuration and logs. Could you please execute it on the machine where the stack is running by following the steps described in the guide below?

How to Run the Bitnami Support Tool in a cloud image or virtual machine

Please note that you need to paste the code ID that is shown at the end.