Adjust down the number of Sidekiq threads to 5 (default of 25 is way too high)

config/database.yml

@@ -1,6 +1,6 @@
 default: &default
   adapter: postgresql
-  pool: 25
+  pool: 5
   timeout: 5000
   encoding: unicode
 

config/initializers/sidekiq.rb

@@ -7,5 +7,5 @@ Sidekiq.configure_server do |config|
 end
 
 Sidekiq.configure_client do |config|
-  config.redis = ConnectionPool.new(size: 25, &redis_conn)
+  config.redis = ConnectionPool.new(size: 5, &redis_conn)
 end

config/sidekiq.yml

@@ -0,0 +1,2 @@
+---
+:concurrency: 5