Today we noticed that it’s incredibly slow, if possible at all, to upload new avatar photos. It’s also been incredibly slow to load some (but not all) users’ larger avatars on the pop-up user cards or the full-page profile. Updated to 2.5.0.beta2 (ae3220fb88) hoping that would help but no luck. In https://discourse.example.org/logs we see the following type of warning when trying to upload a new avatar image file through the user profile page: DistributedMutex(“upload_2_TEST.jpg”): held for too long, expected max: 60 secs, took an extra 2 secs /var/www/discourse/lib/distributed_mutex.rb:54:in `warn' /var/www/discourse/lib/distributed_mutex.rb:37:in `ensure in block in synchronize' /var/www/discourse/lib/distributed_mutex.rb:41:in `block in synchronize' /var/www/discourse/lib/distributed_mutex.rb:29:in `synchronize' /var/www/discourse/lib/distributed_mutex.rb:29:in `synchronize' /var/www/discourse/lib/distributed_mutex.rb:14:in `synchronize' /var/www/discourse/lib/upload_creator.rb:37:in `create_for' /var/www/discourse/app/controllers/uploads_controller.rb:217:in `create_upload' /var/www/discourse/app/controllers/uploads_controller.rb:36:in `block in create' /var/www/discourse/lib/hijack.rb:56:in `instance_eval' /var/www/discourse/lib/hijack.rb:56:in `block in hijack' /var/www/discourse/lib/scheduler/defer.rb:94:in `block in do_work' rails_multisite-2.1.0/lib/rails_multisite/connection_management.rb:64:in `with_connection' /var/www/discourse/lib/scheduler/defer.rb:89:in `do_work' /var/www/discourse/lib/scheduler/defer.rb:79:in `block (2 levels) in start_thread' There are also some other items in /logs that seem to be related: [Warning] DistributedMutex(“optimized_image_23_120_120”): held for too long, expected max: 60 secs, took an extra 5 secs [Error] ‘hijack uploads create’ is still running after 90 seconds on db default, this process may need to be restarted! Here’s what the UI looks like when attempting to upload an avatar image, after eventually timing out: [image]

This seems to have self-resolved, I think … avatars are both uploading and rendering quickly now without errors. Anyone ever seen something like this before? Is there some resource utilization I should be concerned about?

How old was the version you were upgrading from?

Uploading avatars slow or broken, with warnings in /logs

Product Support

codinghorror (Jeff Atwood) March 10, 2020, 8:56am 5

My guess is some kind of arcane server problem. No other reports of this recently.

Topic		Replies	Views
日志中频繁出现DistributedMutex错误警告 Product Support	10	465	June 10, 2026
Problems with avatar uploads due to S3 changes Product Support	21	4012	October 17, 2018
Load average ×2 since last upgrade Bug activitypub	5	391	December 22, 2025
Avatar upload failing Bug	14	1722	September 10, 2018
User profile images loading slowly, failing to load Product Support	30	2473	February 23, 2020

Uploading avatars slow or broken, with warnings in /logs

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