Dears good evening,
Hope you are doing great !!
I am trying to upgrade Discourse on my self hosted instance but get the following error message:
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*** Please be patient, next steps might take a while ***
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ABORTING, you do not have enough Unicorn workers running
Docker Manager: FAILED TO UPGRADE
#<RuntimeError: Not enough workers>
/var/www/discourse/plugins/docker_manager/lib/docker_manager/upgrader.rb:41:in `upgrade'
/var/www/discourse/plugins/docker_manager/scripts/docker_manager_upgrade.rb:19:in `block in <main>'
/var/www/discourse/plugins/docker_manager/scripts/docker_manager_upgrade.rb:6:in `fork'
/var/www/discourse/plugins/docker_manager/scripts/docker_manager_upgrade.rb:6:in `<main>'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/railties-8.0.4/lib/rails/commands/runner/runner_command.rb:44:in `load'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/railties-8.0.4/lib/rails/commands/runner/runner_command.rb:44:in `block in perform'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activesupport-8.0.4/lib/active_support/execution_wrapper.rb:91:in `wrap'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/railties-8.0.4/lib/rails/commands/runner/runner_command.rb:70:in `conditional_executor'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/railties-8.0.4/lib/rails/commands/runner/runner_command.rb:43:in `perform'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/thor-1.4.0/lib/thor/command.rb:28:in `run'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/thor-1.4.0/lib/thor/invocation.rb:127:in `invoke_command'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/railties-8.0.4/lib/rails/command/base.rb:178:in `invoke_command'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/thor-1.4.0/lib/thor.rb:538:in `dispatch'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/railties-8.0.4/lib/rails/command/base.rb:73:in `perform'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/railties-8.0.4/lib/rails/command.rb:65:in `block in invoke'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/railties-8.0.4/lib/rails/command.rb:143:in `with_argv'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/railties-8.0.4/lib/rails/command.rb:63:in `invoke'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/railties-8.0.4/lib/rails/commands.rb:18:in `<main>'
/usr/local/lib/ruby/3.3.0/bundled_gems.rb:69:in `require'
/usr/local/lib/ruby/3.3.0/bundled_gems.rb:69:in `block (2 levels) in replace_require'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/bootsnap-1.19.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
bin/rails:18:in `<main>'
Could anyone help me troubleshooting this error so I can upgrade my instance ?
I am currently running on 2025.12.0-latest
Thank you all for your help and support,
Cheers
BR
Terenui
