Merge pull request #4895 from axilleas/clear-cache

 Clear redis cache and precompile assets during update to 6.0. Fix #4874 #4840

doc/update/5.4-to-6.0.md

@@ -62,7 +62,7 @@ cd /home/git/gitlab
 # MySQL
 sudo -u git -H bundle install --without development test postgres --deployment
 
-#PostgreSQL
+# PostgreSQL
 sudo -u git -H bundle install --without development test mysql --deployment
 
 sudo -u git -H bundle exec rake db:migrate RAILS_ENV=production
@@ -71,6 +71,12 @@ sudo -u git -H bundle exec rake migrate_global_projects RAILS_ENV=production
 sudo -u git -H bundle exec rake migrate_keys RAILS_ENV=production
 sudo -u git -H bundle exec rake migrate_inline_notes RAILS_ENV=production
 
+# Clear redis cache
+sudo -u git -H bundle exec rake cache:clear RAILS_ENV=production
+
+# Clear and precompile assets
+sudo -u git -H bundle exec rake assets:clean RAILS_ENV=production
+sudo -u git -H bundle exec rake assets:precompile RAILS_ENV=production
 ```
 
 ### 6. Update config files