File sidekiq.rb of Package redmine
Sidekiq.configure_server do |config|
config.logger = Sidekiq::Logger.new($stdout)
# config.logger.level = Logger::DEBUG
config.logger.level = Logger::INFO
config.redis = { path: '/run/redis/redmine.sock', db: 0 }
end
Sidekiq.configure_client do |config|
config.redis = { path: '/run/redis/redmine.sock', db: 0 }
end