Suspension emails fail with 'undefined method 'topic', other emails work fine

Bug
1

3.1.0.beta3

When a user is suspended, the email to them is not sent, and the error below is logged. All other email is delivered normally.

Job exception: undefined method 'topic' for nil:NilClass

Backtrace

/var/www/discourse/app/jobs/regular/user_email.rb:116:in `message_for_email' 
/var/www/discourse/app/jobs/regular/user_email.rb:76:in `send_user_email' 
/var/www/discourse/app/jobs/regular/user_email.rb:39:in `execute' 
/var/www/discourse/plugins/chat/lib/chat/user_email_extension.rb:6:in `execute' 
/var/www/discourse/app/jobs/regular/critical_user_email.rb:12:in `execute' 
/var/www/discourse/app/jobs/base.rb:249:in `block (2 levels) in perform' 
rails_multisite-4.0.1/lib/rails_multisite/connection_management.rb:80:in `with_connection'
/var/www/discourse/app/jobs/base.rb:236:in `block in perform' 
/var/www/discourse/app/jobs/base.rb:232:in `each' 
/var/www/discourse/app/jobs/base.rb:232:in `perform' 
sidekiq-6.5.8/lib/sidekiq/processor.rb:202:in `execute_job' 
sidekiq-6.5.8/lib/sidekiq/processor.rb:170:in `block (2 levels) in process' 
sidekiq-6.5.8/lib/sidekiq/middleware/chain.rb:177:in `block in invoke' 
/var/www/discourse/lib/sidekiq/pausable.rb:134:in `call' 
sidekiq-6.5.8/lib/sidekiq/middleware/chain.rb:179:in `block in invoke' 
sidekiq-6.5.8/lib/sidekiq/middleware/chain.rb:182:in `invoke' 
sidekiq-6.5.8/lib/sidekiq/processor.rb:169:in `block in process' 
sidekiq-6.5.8/lib/sidekiq/processor.rb:136:in `block (6 levels) in dispatch' 
sidekiq-6.5.8/lib/sidekiq/job_retry.rb:113:in `local' 
sidekiq-6.5.8/lib/sidekiq/processor.rb:135:in `block (5 levels) in dispatch' 
sidekiq-6.5.8/lib/sidekiq.rb:44:in `block in <module:Sidekiq>' 
sidekiq-6.5.8/lib/sidekiq/processor.rb:131:in `block (4 levels) in dispatch' 
sidekiq-6.5.8/lib/sidekiq/processor.rb:263:in `stats' 
sidekiq-6.5.8/lib/sidekiq/processor.rb:126:in `block (3 levels) in dispatch' 
sidekiq-6.5.8/lib/sidekiq/job_logger.rb:13:in `call' 
sidekiq-6.5.8/lib/sidekiq/processor.rb:125:in `block (2 levels) in dispatch' 
sidekiq-6.5.8/lib/sidekiq/job_retry.rb:80:in `global' 
sidekiq-6.5.8/lib/sidekiq/processor.rb:124:in `block in dispatch' 
sidekiq-6.5.8/lib/sidekiq/job_logger.rb:39:in `prepare' 
sidekiq-6.5.8/lib/sidekiq/processor.rb:123:in `dispatch' 
sidekiq-6.5.8/lib/sidekiq/processor.rb:168:in `process' 
sidekiq-6.5.8/lib/sidekiq/processor.rb:78:in `process_one' 
sidekiq-6.5.8/lib/sidekiq/processor.rb:68:in `run' 
sidekiq-6.5.8/lib/sidekiq/component.rb:8:in `watchdog' 
sidekiq-6.5.8/lib/sidekiq/component.rb:17:in `block in safe_thread'

Env

hostname gaoa-discourse-app
process_id 11140
application_version ea4f7fb660cb4cb5cba3763e9a28352123d39591
current_db default
current_hostname forum.[xxx].com
job Jobs::CriticalUserEmail
problem_db default
time 8:54 am
opts type account_suspended
--- --- --- ---
--- ---
user_id 3919
user_history_id 41800
current_site_id default

Edit to add sidekiq status:

sidekiq failed job
sidekiq failed job1744×328 59.4 KB

2

Hi @omarfilip,

I don’t have a solution for you, but I wanted to confirm I was able to replicate this experience on an installation of Discourse that does not have many plugins.

Steps taken to replicate:

  1. Select a user from /admin/users/list/active and manually suspend with the suspend button.

image
image900×50 1.65 KB

  1. Add text in the “Email message” field.

image

  1. Click the suspend button and confirm the user is now suspended.

image
image948×64 2.38 KB

Result: No email is sent, and there is a Job Exception in the error logs.

Message (3 copies reported)

Job exception: undefined method `topic' for nil:NilClass


Backtrace

/var/www/discourse/app/jobs/regular/user_email.rb:116:in `message_for_email'
/var/www/discourse/app/jobs/regular/user_email.rb:76:in `send_user_email'
/var/www/discourse/app/jobs/regular/user_email.rb:39:in `execute'
/var/www/discourse/plugins/chat/lib/chat/user_email_extension.rb:6:in `execute'
/var/www/discourse/app/jobs/regular/critical_user_email.rb:12:in `execute'
/var/www/discourse/app/jobs/base.rb:249:in `block (2 levels) in perform'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/rails_multisite-4.0.1/lib/rails_multisite/connection_management.rb:80:in `with_connection'
/var/www/discourse/app/jobs/base.rb:236:in `block in perform'
/var/www/discourse/app/jobs/base.rb:232:in `each'
/var/www/discourse/app/jobs/base.rb:232:in `perform'
5 Likes
6

Hi @omarfilip,

Did any of your suspension emails ever send?

The emails related to my test suspensions were sent 2023-04-09T10:10:00Z, with no further action from me, but new suspensions are still failing with the same error.

1 Like
7

Thanks for the report and the repro @omarfilip and @Southpaw :+1:

Someone has been assigned to look into it and should hopefully have some answers soon. :crossed_fingers: :slight_smile:

2 Likes
8

Same issue with new suspensions - they just pile into the failed queue.

10

Note, this is assigned out internally, we hope to work on a fix in the upcoming few days.

2 Likes
12

This should be fixed by: :+1:

2 Likes
13

Thanks. That cleared the stuck jobs in sidekiq right away. :+1:

2 Likes