Should be used if you find in Sidekiq logs:
Error fetching job: MISCONF Redis is configured to save RDB snapshots, but is currently not able to persist on disk. Commands that may modify the data set are disabled. Please check Redis logs for details about the error.
Or if you see in Redis logs:
Can't save in background: fork: Cannot allocate memory
See more: https://redis.io/topics/faq
Source is located at: https://github.com/Mehonoshin/redis-overcommit-enabled