David Taylor db4ae50928
PERF: Load users in batches when generating notifications (#8870)
Previously, `notify_first_post_users` was loading all users into memory simultaneously, which can cause Sidekiq to run out of memory for large sites. `notify_post_users` was loading every user one-by-one in a loop.

This commit makes both these functions load users in batches of 100. This should make the memory usage of `notify_first_post_users` lower, and reduce the number of queries required in `notify_post_users`.
2020-02-06 12:14:19 +00:00
..
2020-01-21 22:27:21 +01:00