For a few months now, we have been seeing these dozens of these warnings in /logs on a daily basis:
Unicorn worker received USR2 signal indicating it is about to timeout, dumping backtrace for main thread
As we usually run on stable, I assumed they would eventually go away when we jumped into the next major version which we did this week. We are now on 3.4.1, but the errors continue.
backtrace
activesupport-7.2.2.1/lib/active_support/broadcast_logger.rb:130:in `block in warn'
activesupport-7.2.2.1/lib/active_support/broadcast_logger.rb:231:in `block in dispatch'
activesupport-7.2.2.1/lib/active_support/broadcast_logger.rb:231:in `each'
activesupport-7.2.2.1/lib/active_support/broadcast_logger.rb:231:in `dispatch'
activesupport-7.2.2.1/lib/active_support/broadcast_logger.rb:130:in `warn'
/var/www/discourse/lib/signal_trap_logger.rb:40:in `public_send'
/var/www/discourse/lib/signal_trap_logger.rb:40:in `block (2 levels) in ensure_logging_thread_running'
<internal:kernel>:187:in `loop'
/var/www/discourse/lib/signal_trap_logger.rb:37:in `block in ensure_logging_thread_running'
info
Unicorn worker received USR2 signal indicating it is about to timeout, dumping backtrace for main thread
config/unicorn.conf.rb:203:in `backtrace'
config/unicorn.conf.rb:203:in `block (2 levels) in reload'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/rack-mini-profiler-3.3.1/lib/patches/db/pg.rb:69:in `exec_params'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/rack-mini-profiler-3.3.1/lib/patches/db/pg.rb:69:in `exec_params'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-7.2.2.1/lib/active_record/connection_adapters/postgresql_adapter.rb:894:in `block (2 levels) in exec_no_cache'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-7.2.2.1/lib/active_record/connection_adapters/abstract_adapter.rb:1004:in `block in with_raw_connection'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activesupport-7.2.2.1/lib/active_support/concurrency/null_lock.rb:9:in `synchronize'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-7.2.2.1/lib/active_record/connection_adapters/abstract_adapter.rb:976:in `with_raw_connection'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-7.2.2.1/lib/active_record/connection_adapters/postgresql_adapter.rb:893:in `block in exec_no_cache'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activesupport-7.2.2.1/lib/active_support/notifications/instrumenter.rb:58:in `instrument'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-7.2.2.1/lib/active_record/connection_adapters/abstract_adapter.rb:1119:in `log'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-7.2.2.1/lib/active_record/connection_adapters/postgresql_adapter.rb:892:in `exec_no_cache'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-7.2.2.1/lib/active_record/connection_adapters/postgresql_adapter.rb:872:in `execute_and_clear'
/var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activerecord-7.2.2.1/lib/active_record/connection_adapters/postgresql/database_statements.rb:66:in `internal_exec_query'
/var/www/d...
I’m not sure if they may be related, but we are also seeing two classes of errors (not warnings), intermixed, although less often:
Job exception: terminated
backtrace
/var/www/discourse/lib/pretty_text.rb:239:in `eval'
/var/www/discourse/lib/pretty_text.rb:239:in `block in markdown'
/var/www/discourse/lib/pretty_text.rb:691:in `block in protect'
/var/www/discourse/lib/pretty_text.rb:691:in `synchronize'
/var/www/discourse/lib/pretty_text.rb:691:in `protect'
/var/www/discourse/lib/pretty_text.rb:176:in `markdown'
/var/www/discourse/lib/pretty_text.rb:302:in `cook'
/var/www/discourse/app/models/post_analyzer.rb:30:in `cook'
/var/www/discourse/app/models/post_analyzer.rb:149:in `cooked_stripped'
/var/www/discourse/app/models/post_analyzer.rb:88:in `raw_mentions'
/var/www/discourse/app/models/post.rb:310:in `public_send'
/var/www/discourse/app/models/post.rb:310:in `block (2 levels) in <class:Post>'
/var/www/discourse/app/services/post_alerter.rb:735:in `extract_mentions'
/var/www/discourse/app/services/post_alerter.rb:174:in `after_save_post'
/var/www/discourse/app/jobs/regular/post_alert.rb:10:in `execute'
/var/www/discourse/app/jobs/base.rb:316:in `block (2 levels) in perform'
rails_multisite-6.1.0/lib/rails_multisite/connection_management/null_instance.rb:49:in `with_connection'
rails_multisite-6.1.0/lib/rails_multisite/connection_management.rb:21:in `with_connection'
/var/www/discourse/app/jobs/base.rb:303:in `block in perform'
/var/www/discourse/app/jobs/base.rb:299:in `each'
/var/www/discourse/app/jobs/base.rb:299:in `perform'
sidekiq-6.5.12/lib/sidekiq/processor.rb:202:in `execute_job'
sidekiq-6.5.12/lib/sidekiq/processor.rb:170:in `block (2 levels) in process'
sidekiq-6.5.12/lib/sidekiq/middleware/chain.rb:177:in `block in invoke'
/var/www/discourse/lib/sidekiq/pausable.rb:132:in `call'
sidekiq-6.5.12/lib/sidekiq/middleware/chain.rb:179:in `block in invoke'
sidekiq-6.5.12/lib/sidekiq/middleware/chain.rb:182:in `invoke'
sidekiq-6.5.12/lib/sidekiq/processor.rb:169:in `block in process'
sidekiq-6.5.12/lib/sidekiq/processor.rb:136:in `block (6 levels) in dispatch'
sidekiq-6.5.12/lib/sidekiq/job_retry.rb:113:in `local'
sidekiq-6.5.12/lib/sidekiq/processor.rb:135:in `block (5 levels) in dispatch'
sidekiq-6.5.12/lib/sidekiq.rb:44:in `block in <module:Sidekiq>'
sidekiq-6.5.12/lib/sidekiq/processor.rb:131:in `block (4 levels) in dispatch'
sidekiq-6.5.12/lib/sidekiq/processor.rb:263:in `stats'
sidekiq-6.5.12/lib/sidekiq/processor.rb:126:in `block (3 levels) in dispatch'
sidekiq-6.5.12/lib/sidekiq/job_logger.rb:13:in `call'
sidekiq-6.5.12/lib/sidekiq/processor.rb:125:in `block (2 levels) in dispatch'
sidekiq-6.5.12/lib/sidekiq/job_retry.rb:80:in `global'
sidekiq-6.5.12/lib/sidekiq/processor.rb:124:in `block in dispatch'
sidekiq-6.5.12/lib/sidekiq/job_logger.rb:39:in `prepare'
sidekiq-6.5.12/lib/sidekiq/processor.rb:123:in `dispatch'
sidekiq-6.5.12/lib/sidekiq/processor.rb:168:in `process'
sidekiq-6.5.12/lib/sidekiq/processor.rb:78:in `process_one'
sidekiq-6.5.12/lib/sidekiq/processor.rb:68:in `run'
sidekiq-6.5.12/lib/sidekiq/component.rb:8:in `watchdog'
sidekiq-6.5.12/lib/sidekiq/component.rb:17:in `block in safe_thread
info
Job exception: terminated
And also,
MiniRacer::ScriptTerminatedError (terminated) lib/pretty_text.rb:239:in
eval' lib/pretty_text.rb:239:inblock in markdown’ lib/pretty_text.rb:691:inblock in protect' lib/pretty_text.rb:691:insyn
backtrace
lib/pretty_text.rb:239:in `eval'
lib/pretty_text.rb:239:in `block in markdown'
lib/pretty_text.rb:691:in `block in protect'
lib/pretty_text.rb:691:in `synchronize'
lib/pretty_text.rb:691:in `protect'
lib/pretty_text.rb:176:in `markdown'
lib/pretty_text.rb:302:in `cook'
app/models/post_analyzer.rb:30:in `cook'
app/models/post_analyzer.rb:149:in `cooked_stripped'
app/models/post_analyzer.rb:88:in `raw_mentions'
app/models/post.rb:310:in `public_send'
app/models/post.rb:310:in `block (2 levels) in <class:Post>'
lib/validators/post_validator.rb:80:in `max_mention_validator'
lib/validators/post_validator.rb:17:in `validate'
activesupport (7.2.2.1) lib/active_support/callbacks.rb:385:in `block in make_lambda'
activesupport (7.2.2.1) lib/active_support/callbacks.rb:179:in `block in call'
activesupport (7.2.2.1) lib/active_support/callbacks.rb:668:in `block (2 levels) in default_terminator'
activesupport (7.2.2.1) lib/active_support/callbacks.rb:667:in `catch'
activesupport (7.2.2.1) lib/active_support/callbacks.rb:667:in `block in default_terminator'
activesupport (7.2.2.1) lib/active_support/callbacks.rb:180:in `call'
activesupport (7.2.2.1) lib/active_support/callbacks.rb:559:in `block in invoke_before'
activesupport (7.2.2.1) lib/active_support/callbacks.rb:559:in `each'
activesupport (7.2.2.1) lib/active_support/callbacks.rb:559:in `invoke_before'
activesupport (7.2.2.1) lib/active_support/callbacks.rb:109:in `run_callbacks'
activesupport (7.2.2.1) lib/active_support/callbacks.rb:913:in `_run_validate_callbacks'
activemodel (7.2.2.1) lib/active_model/validations.rb:441:in `run_validations!'
activemodel (7.2.2.1) lib/active_model/validations/callbacks.rb:115:in `block in run_validations!'
activesupport (7.2.2.1) lib/active_support/callbacks.rb:110:in `run_callbacks'
activesupport (7.2.2.1) lib/active_support/callbacks.rb:913:in `_run_validation_callbacks'
activemodel (7.2.2.1) lib/active_model/validations/callbacks.rb:115:in `run_validations!'
activemodel (7.2.2.1) lib/active_model/validations.rb:366:in `valid?'
activerecord (7.2.2.1) lib/active_record/validations.rb:71:in `valid?'
activerecord (7.2.2.1) lib/active_record/validations.rb:91:in `perform_validations'
activerecord (7.2.2.1) lib/active_record/validations.rb:48:in `save'
activerecord (7.2.2.1) lib/active_record/transactions.rb:362:in `block in save'
activerecord (7.2.2.1) lib/active_record/transactions.rb:418:in `block (2 levels) in with_transaction_returning_status'
activerecord (7.2.2.1) lib/active_record/connection_adapters/abstract/database_statements.rb:359:in `transaction'
activerecord (7.2.2.1) lib/active_record/transactions.rb:414:in `block in with_transaction_returning_status'
activerecord (7.2.2.1) lib/active_record/connection_adapters/abstract/connection_pool.rb:415:in `with_connection'
activerecord (7.2.2.1) lib/active_record/connection_handling.rb:296:in `with_connection'
activerecord (7.2.2.1) lib/active_record/transactions.rb:410:in `with_transaction_returning_status'
activerecord (7.2.2.1) lib/active_record/transactions.rb:362:in `save'
activerecord (7.2.2.1) lib/active_record/suppressor.rb:52:in `save'
lib/post_revisor.rb:499:in `update_post'
lib/post_revisor.rb:460:in `revise'
lib/post_revisor.rb:454:in `revise_and_create_new_version'
lib/post_revisor.rb:357:in `revise_post'
lib/post_revisor.rb:279:in `block in revise!'
activerecord (7.2.2.1) lib/active_record/connection_adapters/abstract/transaction.rb:616:in `block in within_new_transaction'
activesupport (7.2.2.1) lib/active_support/concurrency/null_lock.rb:9:in `synchronize'
activerecord (7.2.2.1) lib/active_record/connection_adapters/abstract/transaction.rb:613:in `within_new_transaction'
activerecord (7.2.2.1) lib/active_record/connection_adapters/abstract/database_statements.rb:361:in `transaction'
activerecord (7.2.2.1) lib/active_record/transactions.rb:234:in `block in transaction'
activerecord (7.2.2.1) lib/active_record/connection_adapters/abstract/connection_pool.rb:415:in `with_connection'
activerecord (7.2.2.1) lib/active_record/connection_handling.rb:296:in `with_connection'
activerecord (7.2.2.1) lib/active_record/transactions.rb:233:in `transaction'
lib/post_revisor.rb:278:in `revise!'
app/controllers/posts_controller.rb:276:in `update'
actionpack (7.2.2.1) lib/action_controller/metal/basic_implicit_render.rb:8:in `send_action'
actionpack (7.2.2.1) lib/abstract_controller/base.rb:226:in `process_action'
actionpack (7.2.2.1) lib/action_controller/metal/rendering.rb:193:in `process_action'
actionpack (7.2.2.1) lib/abstract_controller/callbacks.rb:261:in `block in process_action'
activesupport (7.2.2.1) lib/active_support/callbacks.rb:121:in `block in run_callbacks'
app/controllers/application_controller.rb:427:in `block in with_resolved_locale'
i18n (1.14.7) lib/i18n.rb:353:in `with_locale'
app/controllers/application_controller.rb:427:in `with_resolved_locale'
activesupport (7.2.2.1) lib/active_support/callbacks.rb:130:in `block in run_callbacks'
activesupport (7.2.2.1) lib/active_support/callbacks.rb:141:in `run_callbacks'
actionpack (7.2.2.1) lib/abstract_controller/callbacks.rb:260:in `process_action'
actionpack (7.2.2.1) lib/action_controller/metal/rescue.rb:27:in `process_action'
actionpack (7.2.2.1) lib/action_controller/metal/instrumentation.rb:77:in `block in process_action'
activesupport (7.2.2.1) lib/active_support/notifications.rb:210:in `block in instrument'
activesupport (7.2.2.1) lib/active_support/notifications/instrumenter.rb:58:in `instrument'
activesupport (7.2.2.1) lib/active_support/notifications.rb:210:in `instrument'
actionpack (7.2.2.1) lib/action_controller/metal/instrumentation.rb:76:in `process_action'
actionpack (7.2.2.1) lib/action_controller/metal/params_wrapper.rb:259:in `process_action'
activerecord (7.2.2.1) lib/active_record/railties/controller_runtime.rb:39:in `process_action'
actionpack (7.2.2.1) lib/abstract_controller/base.rb:163:in `process'
actionview (7.2.2.1) lib/action_view/rendering.rb:40:in `process'
rack-mini-profiler (3.3.1) lib/mini_profiler/profiling_methods.rb:89:in `block in profile_method'
actionpack (7.2.2.1) lib/action_controller/metal.rb:252:in `dispatch'
actionpack (7.2.2.1) lib/action_controller/metal.rb:335:in `dispatch'
actionpack (7.2.2.1) lib/action_dispatch/routing/route_set.rb:67:in `dispatch'
actionpack (7.2.2.1) lib/action_dispatch/routing/route_set.rb:50:in `serve'
actionpack (7.2.2.1) lib/action_dispatch/journey/router.rb:53:in `block in serve'
actionpack (7.2.2.1) lib/action_dispatch/journey/router.rb:133:in `block in find_routes'
actionpack (7.2.2.1) lib/action_dispatch/journey/router.rb:126:in `each'
actionpack (7.2.2.1) lib/action_dispatch/journey/router.rb:126:in `find_routes'
actionpack (7.2.2.1) lib/action_dispatch/journey/router.rb:34:in `serve'
actionpack (7.2.2.1) lib/action_dispatch/routing/route_set.rb:896:in `call'
lib/middleware/omniauth_bypass_middleware.rb:64:in `call'
rack (2.2.10) lib/rack/tempfile_reaper.rb:15:in `call'
rack (2.2.10) lib/rack/conditional_get.rb:40:in `call'
rack (2.2.10) lib/rack/head.rb:12:in `call'
actionpack (7.2.2.1) lib/action_dispatch/http/permissions_policy.rb:38:in `call'
lib/content_security_policy/middleware.rb:12:in `call'
lib/middleware/anonymous_cache.rb:403:in `call'
lib/middleware/csp_script_nonce_injector.rb:12:in `call'
config/initializers/008-rack-cors.rb:14:in `call'
rack (2.2.10) lib/rack/session/abstract/id.rb:266:in `context'
rack (2.2.10) lib/rack/session/abstract/id.rb:260:in `call'
actionpack (7.2.2.1) lib/action_dispatch/middleware/cookies.rb:704:in `call'
actionpack (7.2.2.1) lib/action_dispatch/middleware/callbacks.rb:31:in `block in call'
activesupport (7.2.2.1) lib/active_support/callbacks.rb:101:in `run_callbacks'
actionpack (7.2.2.1) lib/action_dispatch/middleware/callbacks.rb:30:in `call'
actionpack (7.2.2.1) lib/action_dispatch/middleware/debug_exceptions.rb:31:in `call'
actionpack (7.2.2.1) lib/action_dispatch/middleware/show_exceptions.rb:32:in `call'
logster (2.20.0) lib/logster/m
info
MiniRacer::ScriptTerminatedError (terminated)
lib/pretty_text.rb:239:in `eval'
lib/pretty_text.rb:239:in `block in markdown'
lib/pretty_text.rb:691:in `block in protect'
lib/pretty_text.rb:691:in `synchronize'
lib/pretty_text.rb:691:in `protect'
lib/pretty_text.rb:176:in `markdown'
lib/pretty_text.rb:302:in `cook'
app/models/post_analyzer.rb:30:in `cook'
app/models/post_analyzer.rb:149:in `cooked_stripped'
app/models/post_analyzer.rb:88:in `raw_mentions'
app/models/post.rb:310:in `public_send'
app/models/post.rb:310:in `block (2 levels) in <class:Post>'
lib/validators/post_validator.rb:80:in `max_mention_validator'
lib/validators/post_validator.rb:17:in `validate'
lib/post_revisor.rb:499:in `update_post'
lib/post_revisor.rb:460:in `revise'
lib/post_revisor.rb:454:in `revise_and_create_new_version'
lib/post_revisor.rb:357:in `revise_post'
lib/post_revisor.rb:279:in `block in revise!'
lib/post_revisor.rb:278:in `revise!'
app/controllers/posts_controller.rb:276:in `update'
app/controllers/application_controller.rb:427:in `block in with_resolved_locale'
app/controllers/application_controller.rb:427:in `with_resolved_locale'
lib/middleware/omniauth_bypass_middleware.rb:64:in `call'
lib/content_security_policy/middleware.rb:12:in `call'
lib/middleware/anonymous_cache.rb:403:in `call'
lib/middleware/csp_script_nonce_injector.rb:12:in `call'
config/initializers/008-rack-cors.rb:14:in `call'
config/initializers/100-quiet_logger.rb:20:in `call'
config/initializers/100-silence_logger.rb:29:in `call'
lib/middleware/enforce_hostname.rb:24:in `call'
lib/middleware/processing_request.rb:12:in `call'
lib/middleware/request_tracker.rb:385:in `call'
These may be related with this, but in my case they seem to persist. And, as mentioned there, the logs do seem to get truncated sometimes.
And what all this looks like in /logs:
Any clues on what might be causing these? Can I prove any other info?