Embeddings search still running error

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AI-generated summary

A user reports a new error in the logs following an upgrade to Discourse 2026.9.0, where the discourse_ai/embeddings/embeddings search process is flagged as still running after 90 seconds on the default database. The error suggests that the process may need to be restarted. The issue is categorized under Bug with tags for AI and AI Search.

1

I’m seeing this new error in the logs are upgrading to 2026.9.0

Message (2 copies reported)

'hijack discourse_ai/embeddings/embeddings search ' is still running after 90 seconds on db default, this process may need to be restarted!

Backtrace

/var/www/discourse/vendor/bundle/ruby/3.4.0/gems/activesupport-8.1.3.1/lib/active_support/broadcast_logger.rb:218:in 'block in ActiveSupport::BroadcastLogger#dispatch'
/var/www/discourse/vendor/bundle/ruby/3.4.0/gems/activesupport-8.1.3.1/lib/active_support/broadcast_logger.rb:217:in 'Array#map'
/var/www/discourse/vendor/bundle/ruby/3.4.0/gems/activesupport-8.1.3.1/lib/active_support/broadcast_logger.rb:217:in 'ActiveSupport::BroadcastLogger#dispatch'
/var/www/discourse/vendor/bundle/ruby/3.4.0/gems/activesupport-8.1.3.1/lib/active_support/broadcast_logger.rb:129:in 'ActiveSupport::BroadcastLogger#error'
/var/www/discourse/lib/scheduler/defer.rb:133:in 'block (2 levels) in Scheduler::Deferrable#do_work'
/var/www/discourse/vendor/bundle/ruby/3.4.0/gems/message_bus-5.0.0/lib/message_bus/timer_thread.rb:117:in 'MessageBus::TimerThread#do_work'
/var/www/discourse/vendor/bundle/ruby/3.4.0/gems/message_bus-5.0.0/lib/message_bus/timer_thread.rb:95:in 'block (2 levels) in MessageBus::TimerThread#queue'