Re: Prefetch maintenance might lead to thundering herd issues

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On 9/22/24 2:40 PM, Shubham Kanodia wrote:
On Sat, Sep 21, 2024 at 1:20 AM Derrick Stolee <stolee@xxxxxxxxx> wrote:

This is already handled by using a random minute of the hour, as
implemented in 9b43399057 (maintenance: use random minute in cron
scheduler, 2023-08-10), for example. There are similar uses for
systemd, launchctl, and schtasks schedulers (look for uses of
the get_random_minute() method).

Ah, thanks for pointing that out. It wasn't really clear from the
multiple examples and cron expressions on the git
maintenance documentation page (which have examples such as `0 1-23 *
* *` for hourly). I should've looked
more deeply into the implementation.

Perhaps adding a line to the existing doc might be of help? What do
you think about adding a line to the
section on scheduling —

I do think a doc change would help. Please submit it as a patch for
review!

Thanks,
-Stolee





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