فشل الترقية أثناء الهجرة

الدعم تثبيت
1

مرحبًا،

نحن نحاول تحديث تثبيت قديم جدًا من Discourse (الإصدار 1.2.4) إلى أحدث إصدار v2.3.1. كانت هجرات الاختبار الأولى التي قمنا بها باستخدام الإصدار 2.2.0 ناجحة بشكل مفاجئ، وانتهت عملية الهجرة دون أي مشاكل.
لكننا الآن نحاول تشغيلها في المراحل النهائية مقابل الإصدار 2.3.1، ونحصل على الخطأ التالي:

PG::UniqueViolation: ERROR:  duplicate key value violates unique constraint "idx_unique_rows"
DETAIL:  Key (action_type, user_id, target_topic_id, target_post_id, acting_user_id)=(15, 1140990, 9346002, 9431164, 419835) already exists.
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-mini-profiler-1.0.2/lib/patches/db/pg.rb:110:in `async_exec'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-mini-profiler-1.0.2/lib/patches/db/pg.rb:110:in `async_exec'
(eval):24:in `async_exec'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/mini_sql-0.2.2/lib/mini_sql/postgres/connection.rb:118:in `run'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/mini_sql-0.2.2/lib/mini_sql/postgres/connection.rb:90:in `exec'
/var/www/discourse/plugins/discourse-solved/plugin.rb:64:in `block in activate!'
/var/www/discourse/lib/plugin/instance.rb:328:in `block in notify_after_initialize'
/var/www/discourse/lib/plugin/instance.rb:326:in `each'
/var/www/discourse/lib/plugin/instance.rb:326:in `notify_after_initialize'
/var/www/discourse/config/application.rb:292:in `each'
/var/www/discourse/config/application.rb:292:in `block in <class:Application>'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/lazy_load_hooks.rb:69:in `block in execute_hook'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/lazy_load_hooks.rb:62:in `with_execution_control'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/lazy_load_hooks.rb:67:in `execute_hook'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/lazy_load_hooks.rb:52:in `block in run_load_hooks'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/lazy_load_hooks.rb:51:in `each'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/lazy_load_hooks.rb:51:in `run_load_hooks'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/application/finisher.rb:75:in `block in <module:Finisher>'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/initializable.rb:32:in `instance_exec'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/initializable.rb:32:in `run'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/initializable.rb:61:in `block in run_initializers'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/initializable.rb:60:in `run_initializers'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/application.rb:361:in `initialize!'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/railtie.rb:190:in `public_send'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/railtie.rb:190:in `method_missing'
/var/www/discourse/config/environment.rb:7:in `<top (required)>'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `require'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `block in require'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:257:in `load_dependency'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `require'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/application.rb:337:in `require_environment!'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-5.2.3/lib/rails/application.rb:520:in `block in run_tasks_blocks'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rake-12.3.2/exe/rake:27:in `<top (required)>'
/var/www/discourse/bin/bundle:5:in `load'
/var/www/discourse/bin/bundle:5:in `<main>'
Tasks: TOP => db:migrate => db:load_config => environment
(See full trace by running task with --trace)

يبدو أن هذا الخطأ ناتج عن ملف “20120816050526_add_unique_constraint_to_user_actions.rb”، وعند النظر في جدول قاعدة البيانات “schema_migrations” يبدو أن هذا الملف قد تم تطبيقه بالفعل. يبدو أن هذه الهجرة تمت إضافتها في عام 2012.

هل لديك أي أفكار حول سبب تشغيل أمر “bundle exec rake db:migrate” لهجرات تم تطبيقها بالفعل، أو ما الذي نفعله بشكل خاطئ؟
أعلم أن إصدار المصدر قديم جدًا، ولكن كما ذكرت، حصلنا بالفعل على نتائج ناجحة.

مع خالص التحية

2

I’ve misinterpreted this error. So sorry for the confusion. Obviously it has nothing to do with the mentioned migration-file.
Anyway, there seems to be an existing index for an entry in user_actions. So I checked that with:

SELECT *
FROM user_actions
WHERE action_type=15
    AND user_id=1140990
    AND target_topic_id=9346002
    AND target_post_id=9431164
    AND acting_user_id=419835;

This query gives me 0 Results. So there must be an index without a corresponding dataset.

3

When I’ve had similar problems I’ve deleted the thing that it was trying to duplicate. That’s likely not very helpful.

Or maybe make sure that you were in read-only when you make the backup?

3 إعجابات
4

Or maybe make sure that you were in read-only when you make the backup?

Yes maybe that’s the problem. We’ve created the dump while the database was in use. Worked at the first try. I’ll create another one and try again.

إعجاب واحد (1)
5

Hi. It seemed our user_actions table got corrupted. I could fix that by running VACUUM (VERBOSE,ANALYZE,DISABLE_PAGE_SKIPPING) user_actions. But thanks anyway for your advise!
There where several entries missing from the visibility map which produced duplicated keys.

إعجابَين (2)