I got a notice from google that its embedding-001 model will be deprecated this month and to switch over to gemini-embedding-001 instead, which I’ve done. However, now I have a bunch of these errors in my Discourse log:
Error ERROR: expected 768 dimensions, not 3072 querying embeddings for model Gemini embedding
Backtrace
activesupport-8.0.3/lib/active_support/broadcast_logger.rb:218:in `block in dispatch'
activesupport-8.0.3/lib/active_support/broadcast_logger.rb:217:in `map'
activesupport-8.0.3/lib/active_support/broadcast_logger.rb:217:in `dispatch'
activesupport-8.0.3/lib/active_support/broadcast_logger.rb:129:in `error'
/var/www/discourse/plugins/discourse-ai/lib/embeddings/schema.rb:279:in `rescue in symmetric_similarity_search'
/var/www/discourse/plugins/discourse-ai/lib/embeddings/schema.rb:195:in `symmetric_similarity_search'
/var/www/discourse/plugins/discourse-ai/lib/embeddings/semantic_related.rb:24:in `block in related_topic_ids_for'
/var/www/discourse/lib/cache.rb:93:in `fetch'
/var/www/discourse/plugins/discourse-ai/lib/embeddings/semantic_related.rb:21:in `related_topic_ids_for'
/var/www/discourse/plugins/discourse-ai/lib/embeddings/semantic_topic_query.rb:17:in `block in list_semantic_related_topics'
/var/www/discourse/lib/topic_query.rb:532:in `create_list'
/var/www/discourse/plugins/discourse-ai/lib/embeddings/semantic_topic_query.rb:16:in `list_semantic_related_topics'
/var/www/discourse/plugins/discourse-ai/lib/embeddings/entry_point.rb:23:in `block in inject_into'
/var/www/discourse/lib/plugin/instance.rb:435:in `public_send'
/var/www/discourse/lib/plugin/instance.rb:435:in `block (2 levels) in add_to_class'
/var/www/discourse/plugins/discourse-ai/lib/embeddings/entry_point.rb:11:in `block in inject_into'
/var/www/discourse/lib/discourse_plugin_registry.rb:299:in `apply_modifier'
/var/www/discourse/lib/topic_view.rb:726:in `suggested_topics'
/var/www/discourse/app/serializers/suggested_topics_mixin.rb:15:in `include_suggested_topics?'
active_model_serializers-0.8.4/lib/active_model/serializer.rb:375:in `include?'
(eval at active_model_serializers-0.8.4/lib/active_model/serializer.rb:467):7:in `_fast_attributes'
active_model_serializers-0.8.4/lib/active_model/serializer.rb:456:in `attributes'
active_model_serializers-0.8.4/lib/active_model/serializer.rb:480:in `_serializable_hash'
active_model_serializers-0.8.4/lib/active_model/serializer.rb:359:in `serializable_hash'
active_model_serializers-0.8.4/lib/active_model/serializer.rb:347:in `as_json'
activesupport-8.0.3/lib/active_support/json/encoding.rb:41:in `encode'
activesupport-8.0.3/lib/active_support/json/encoding.rb:41:in `encode'
activesupport-8.0.3/lib/active_support/core_ext/object/json.rb:42:in `to_json'
active_model_serializers-0.8.4/lib/active_model/serializer.rb:331:in `to_json'
multi_json-1.17.0/lib/multi_json/adapters/oj.rb:59:in `dump'
multi_json-1.17.0/lib/multi_json/adapters/oj.rb:59:in `dump'
multi_json-1.17.0/lib/multi_json/adapter.rb:26:in `dump'
multi_json-1.17.0/lib/multi_json.rb:128:in `dump'
/var/www/discourse/app/controllers/application_controller.rb:511:in `render_json_dump'
/var/www/discourse/app/controllers/topics_controller.rb:274:in `posts'
actionpack-8.0.3/lib/action_controller/metal/basic_implicit_render.rb:8:in `send_action'
actionpack-8.0.3/lib/abstract_controller/base.rb:215:in `process_action'
actionpack-8.0.3/lib/action_controller/metal/rendering.rb:193:in `process_action'
actionpack-8.0.3/lib/abstract_controller/callbacks.rb:261:in `block in process_action'
activesupport-8.0.3/lib/active_support/callbacks.rb:120:in `block in run_callbacks'
/var/www/discourse/app/controllers/application_controller.rb:432:in `block in with_resolved_locale'
i18n-1.14.7/lib/i18n.rb:353:in `with_locale'
/var/www/discourse/app/controllers/application_controller.rb:432:in `with_resolved_locale'
activesupport-8.0.3/lib/active_support/callbacks.rb:129:in `block in run_callbacks'
activesupport-8.0.3/lib/active_support/callbacks.rb:140:in `run_callbacks'
actionpack-8.0.3/lib/abstract_controller/callbacks.rb:260:in `process_action'
actionpack-8.0.3/lib/action_controller/metal/rescue.rb:27:in `process_action'
actionpack-8.0.3/lib/action_controller/metal/instrumentation.rb:76:in `block in process_action'
activesupport-8.0.3/lib/active_support/notifications.rb:210:in `block in instrument'
activesupport-8.0.3/lib/active_support/notifications/instrumenter.rb:58:in `instrument'
activesupport-8.0.3/lib/active_support/notifications.rb:210:in `instrument'
actionpack-8.0.3/lib/action_controller/metal/instrumentation.rb:75:in `process_action'
actionpack-8.0.3/lib/action_controller/metal/params_wrapper.rb:259:in `process_action'
activerecord-8.0.3/lib/active_record/railties/controller_runtime.rb:39:in `process_action'
actionpack-8.0.3/lib/abstract_controller/base.rb:152:in `process'
actionview-8.0.3/lib/action_view/rendering.rb:40:in `process'
rack-mini-profiler-4.0.1/lib/mini_profiler/profiling_methods.rb:90:in `block in profile_method'
actionpack-8.0.3/lib/action_controller/metal.rb:252:in `dispatch'
actionpack-8.0.3/lib/action_controller/metal.rb:335:in `dispatch'
actionpack-8.0.3/lib/action_dispatch/routing/route_set.rb:67:in `dispatch'
actionpack-8.0.3/lib/action_dispatch/routing/route_set.rb:50:in `serve'
actionpack-8.0.3/lib/action_dispatch/journey/router.rb:53:in `block in serve'
actionpack-8.0.3/lib/action_dispatch/journey/router.rb:133:in `block in find_routes'
actionpack-8.0.3/lib/action_dispatch/journey/router.rb:126:in `each'
actionpack-8.0.3/lib/action_dispatch/journey/router.rb:126:in `find_routes'
actionpack-8.0.3/lib/action_dispatch/journey/router.rb:34:in `serve'
actionpack-8.0.3/lib/action_dispatch/routing/route_set.rb:908:in `call'
/var/www/discourse/lib/middleware/omniauth_bypass_middleware.rb:35:in `call'
/var/www/discourse/lib/middleware/crawler_hooks.rb:11:in `call'
rack-2.2.18/lib/rack/tempfile_reaper.rb:15:in `call'
rack-2.2.18/lib/rack/conditional_get.rb:27:in `call'
rack-2.2.18/lib/rack/head.rb:12:in `call'
actionpack-8.0.3/lib/action_dispatch/http/permissions_policy.rb:38:in `call'
/var/www/discourse/lib/content_security_policy/middleware.rb:12:in `call'
/var/www/discourse/lib/middleware/anonymous_cache.rb:415:in `call'
/var/www/discourse/lib/middleware/csp_script_nonce_injector.rb:12:in `call'
/var/www/discourse/config/initializers/008-rack-cors.rb:14:in `call'
rack-2.2.18/lib/rack/session/abstract/id.rb:266:in `context'
rack-2.2.18/lib/rack/session/abstract/id.rb:260:in `call'
actionpack-8.0.3/lib/action_dispatch/middleware/cookies.rb:706:in `call'
actionpack-8.0.3/lib/action_dispatch/middleware/callbacks.rb:31:in `block in call'
activesupport-8.0.3/lib/active_support/callbacks.rb:100:in `run_callbacks'
actionpack-8.0.3/lib/action_dispatch/middleware/callbacks.rb:30:in `call'
actionpack-8.0.3/lib/action_dispatch/middleware/debug_exceptions.rb:31:in `call'
actionpack-8.0.3/lib/action_dispatch/middleware/show_exceptions.rb:32:in `call'
logster-2.20.1/lib/logster/middleware/reporter.rb:40:in `call'
/var/www/discourse/lib/middleware/default_headers.rb:13:in `call'
railties-8.0.3/lib/rails/rack/logger.rb:41:in `call_app'
railties-8.0.3/lib/rails/rack/logger.rb:29:in `call'
/var/www/discourse/config/initializers/100-quiet_logger.rb:20:in `call'
/var/www/discourse/config/initializers/100-silence_logger.rb:29:in `call'
actionpack-8.0.3/lib/action_dispatch/middleware/request_id.rb:34:in `call'
/var/www/discourse/lib/middleware/enforce_hostname.rb:23:in `call'
rack-2.2.18/lib/rack/method_override.rb:24:in `call'
actionpack-8.0.3/lib/action_dispatch/middleware/executor.rb:16:in `call'
rack-2.2.18/lib/rack/sendfile.rb:110:in `call'
rack-mini-profiler-4.0.1/lib/mini_profiler.rb:191:in `call'
/var/www/discourse/lib/middleware/processing_request.rb:12:in `call'
message_bus-4.4.1/lib/message_bus/rack/middleware.rb:60:in `call'
/var/www/discourse/lib/middleware/request_tracker.rb:410:in `call'
actionpack-8.0.3/lib/action_dispatch/middleware/remote_ip.rb:96:in `call'
railties-8.0.3/lib/rails/engine.rb:535:in `call'
railties-8.0.3/lib/rails/railtie.rb:226:in `public_send'
railties-8.0.3/lib/rails/railtie.rb:226:in `method_missing'
rack-2.2.18/lib/rack/urlmap.rb:74:in `block in call'
rack-2.2.18/lib/rack/urlmap.rb:58:in `each'
rack-2.2.18/lib/rack/urlmap.rb:58:in `call'
unicorn-6.1.0/lib/unicorn/http_server.rb:634:in `process_client'
unicorn-6.1.0/lib/unicorn/http_server.rb:739:in `worker_loop'
unicorn-6.1.0/lib/unicorn/http_server.rb:547:in `spawn_missing_workers'
unicorn-6.1.0/lib/unicorn/http_server.rb:143:in `start'
unicorn-6.1.0/bin/unicorn:128:in `<top (required)>'
/var/www/discourse/vendor/bundle/ruby/3.3.0/bin/unicorn:25:in `load'
/var/www/discourse/vendor/bundle/ruby/3.3.0/bin/unicorn:25:in `<main>'
Env
HTTP HOSTS: discourse.spacecityweather.com```
It looks like the gemini-embedding-001 model returns 3072-dimension vectors unless it receives an output_dimensionality parameter in the request JSON payload, and although “768” is specified in my Discourse embedding config, either the parameter isn’t being sent or it isn’t being recognized.
I could switch providers, but I have Google Cloud credits that I’d prefer to use, so I would prefer to stick wtih gemini for embeddings.
What is the fix here? Do I need to wait on a Discourse patch, or am I safe to just configure a new embedding setup wtih gemini that uses 3072-dimension vectors?