It will be nice to monitor the adaptive intervals of visits for all our origins.
The visits sorted by intervals are returned by the following query (on the softwareheritage-scheduler DB), see P58:
```
select current_interval, count(*)
from task
group by current_interval
order by current_interval;
softwareheritage-scheduler=> select current_interval, count(*) from task group by current_interval order by current_interval;
current_interval | count
------------------+---------
12:00:00 | 961
1 day | 51374
2 days | 61265
4 days | 527019
8 days | 8575817
16 days | 3228828
32 days | 1879803
```
and a sample munin plugin that can be used as template is at prado:/usr/local/bin/softwareheritage_objects_ (hat tip to @olasd).
Info on how to add the plugin when ready (from an IRC conversation):
```
(16:49:35) olasd: the trailing underscore means it's a "template" plugin
(16:49:42) olasd: so you can have several instances of it
(16:49:54) olasd: e.g. when you want to be able to monitor several databases
(16:50:26) olasd: to add the plugin to munin, you add a /etc/munin/plugins/foo_<dbname> link to /usr/local/bin/foo_
(16:50:35) olasd: and restart munin-node
(16:51:28) olasd: (stock munin plugins are in /usr/share/munin/plugins but I didn't really want to do /usr/local/share/munin/plugins, although that'd probably be clearer)
```