bergmeister, 19 days ago

@michael I have had this as well on two occasions. Had to restart sidekiq service to get it flowing again, but did not find out what caused it.

michael, 19 days ago

@bergmeister thanks for this. Very strange …

jenbanim, 19 days ago

@michael on Linux there are limits to the number of files that can be opened at once. This error looks to me like it's hitting that limit. These can be set at the user level, system level, or process level (ie in a .service file) so fixing this can be done in a few different ways. I'm not sure what's best for your situation but hopefully these links can point you in the right direction

https://www.tecmint.com/increase-set-open-file-limits-in-linux/

https://www.cyberciti.biz/faq/linux-increase-the-maximum-number-of-open-files/

michael, 19 days ago

@jenbanim Thanks. I was vaguely aware of this, but not quite sure what best practices are for mastodon.