Peek is not using a connection pool to connect to Redis
We configure Peek
to use a single Redis connection in https://gitlab.com/gitlab-org/gitlab/blob/e392274126c892cd1921adf73939e1f313e0836a/config/initializers/peek.rb#L6.
This means that there may be some contention on this connection in multi-threaded runtimes like Puma.
This is similar to #216060