Original title: Forum front page inaccessible (blank screen or 404) I am moderator at the SocialHub forum at https://socialhub.activitypub.rocks which is the technology forum for the ActivityPub protocol that drives the Fediverse social realm. Currently there is a 4-day ActivityPub Conference going on, and there has been more activity on the forum than usual. This morning I saw that the main page of the forum, when accessed directly from the URL, shows an entirely blank screen (no html returned). However, deep links such as Spritely Project: The Super Exciting Future Of Fediverse - ActivityPub - SocialHub still work, and give access to other functionality, such as Search and the Admin panel. When clicking the logo in top-left corner, instead of the blank screen, a 404 page is shown instead. I have notified people involved in managing the server, and maybe a server restart is all that is required. But just in case anyone recognizes this as a more serious issue, I would greatly appreciate your feedback, so that we can be up-and-running again in time before the Conference talks commence today. PS. The forum is running v2.6.0.beta1

After disabling discourse-assign: latest works top fails /t/951 still fails Running the query… Ah! You nailed it! {"event_start"=>1601748000, "event_end"=>1601749800, "event_all_day"=>false, "event_timezone"=>"Etc/UTC", "event_rsvp"=>true, "event_going_max"=>100, "event_version"=>1, "event_going"=>[36, 50]} Apparently the events plugin is skipped during merging. But that might be as well because it’s an older version we’re running. Tell me if I can help you test this case. Thank you for solving this @gerhard!

Your problem seems to be when you load the latest posts which gives an 404 error. Did anyone change the naming of this ? SocialHub Go into settings and go look for latest and see what happens [image]

Thank you @IAmGav for the suggestion: we have no customization for any “Latest”-related strings. Some pages indeed remain broken, including a category which we actually need :frowning: [image] ActivityPub Conference 2020 Add your proposals for the Conf by creating a New Topic – Tag it #bof for Birds of Feather sessions or #hackathon for Hack proposals … Given the code of the force mobile homepage component, I’m curious how to check whether some things have changed in the DB related to setDefaultHomepage(settings.homepage); But I don’t think it would affect a category. So there must be something else. I just cleared the logs to ensure the current error is actually not logged. It seems like a bug with the /latest, /top, and the #meeting category. Not sure what’s happening… Looking into the logs inside the container as well for more info… Probably related to some dysfunctional post in the #meeting category…

[image] hellekin: Probably related to some dysfunctional post in the #meeting category… I think the problem comes with ActiveRecord::RecordNotFound (Couldn't find all Users with 'id': (36, 50) (found 1 results, but was looking for 2).) The ids match a user account that was merged, but the process seems to have broken…

I too think this is the problem. No expert, but guessing there is a post that references the old account that no longer exists (and it appears in Top, Latest, and the conference category). If this is the issue, executing a SQL query to delete the post, or update the User ID in it might be an option? What would be the syntax?

The merge users filter in admin actions do not show any log. I think the merge process failed somehow. @team how can I investigate and solve a failed user merger? It seems the result is good though: the user account exists with both email addresses. There must be some dangling ids in some posts somewhere… OK, we narrowed down the issue to a single topic…

this might help [image] Change ownership of all posts by a specific user Self-Hosting bookmark This guide outlines the process to change the ownership of all posts by a specific user. This task requires console access. person_raising_hand Required user level: Server administrator with SSH access In Discourse, there may be situations where you need to change the ownership of all posts by a specific user. This guide provides the steps for achieving this on self-hosted Discourse instances. If you’re using Discourse hosting, please contact the support team at team@discourse.o…

No, it says the (source) user does not exist. I suspect the step DiscourseEvent.trigger(:merging_users, @source_user, @target_user) did not complete. Where can I find the code?

Here we go… [39] pry(main)> PostReplyKey.where(user_id: 36) => [# , # , # , # , # , # , # , # , # , # , # ] So I tried figuring out what to do with it… Granting them to the existing user does not solve anything. Deleting them does not solve anything. Next step: rebuild the involved topics anew, destroy the old ones, see what happens: unless anyone comes up with a better idea…

PostReplyKey refers to the reply-to address in emails, it won’t interact with topic list rendering. Checking the stacktrace, it’s failing inside TopicListSerializer dumping, somehow inside lib/instance/public.rb. Try checking the topic featured users list for the old user ID (the set of avatars that shows up on the homepage).

Hi @riking, thank you for responding… AFAIK apart from the PostReplyKey there’s no mention of this missing user id. But it might not be the actual old user id since I do not know that one. How do you think I could find it – or: what should I grep from the logs?

User merge failed, corrupted database entries due to third party plugin

Product Support

IAmGav (Gavin Perch) October 4, 2020, 10:35am 11

this might help

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User merge failed, corrupted database entries due to third party plugin

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