change link checker update job to run 15 hours after midnight

[jsjiang]

@sfisher Hi Scott, this is to schedule the link checker update to restart at 3pm (15 hours after midnight). See lines 545-548 in the setting.py.j2 file for the explanation. The value is used in the proc-link-chekcer.py script to calculate time to sleep before next run.

I have deployed tag link-checker-update on ezid-stg with this setting and the proc-link-chekcer job was started at 3pm as expected.

Please take a look and let me know if you have questions.

Thank you

Jing

[sfisher]

This looks good to me, thanks for explaining it all to me, Jing.

[jsjiang]

@sfisher Hi Scott,
The link-checker-update job was restarted by itself today at 3pm. So the setting worked. I changed the start time from 15 hours after midnight to 18 hours (64,800 sec) to avoid a conflict with Prod OS patching which happens once a month on the first Tuesday 3-5pm.

Also I changed a filename in the tests/util folder so it will not be picked up by pytest.

I will merge the change and I am planning to run prod deploy Monday 9/16 in the morning.

Thank you

Jing

[sfisher]

Thank you, Jing!