Improve the way the download of exernal database is working

[arno-st]

In 'slow' internet access, the download of the different database can be slow.
And since it's 'inside' cacti process it can provoke some timeout on the poller.
23/12/2024 00:08:01 - POLLER: Poller[Main Poller] PID[1021061] WARNING: Cactid/Cron is out of sync with the Poller Interval! The Poller Interval is '60' seconds, with a maximum of a '60' second Cactid/Cron, but 419.4 seconds have passed since the last poll! 23/12/2024 00:07:15 - FLOWVIEW IRR UPDATE: Downloading arin.db.gz 23/12/2024 00:07:15 - FLOWVIEW IRR UPDATE: IRR Source:arin, Current Serial:4202309, Last Serial:4157315 23/12/2024 00:07:08 - FLOWVIEW IRR UPDATE: Downloading apnic.db.rtr-set.gz 23/12/2024 00:07:03 - FLOWVIEW IRR UPDATE: Downloading apnic.db.route6.gz 23/12/2024 00:07:01 - MAILER INFO: Mail successfully sent via SMTP from 'Cacti 1.2.x Prod <EMAIL>', to 'Administrator <EMAIL>', cc '', bcc '', and took 0.07 seconds, Subject 'Cacti System Warning' 23/12/2024 00:07:01 - POLLER: Poller[Main Poller] PID[1021029] WARNING: Cactid/Cron is out of sync with the Poller Interval! The Poller Interval is '60' seconds, with a maximum of a '60' second Cactid/Cron, but 359.4 seconds have passed since the last poll! 23/12/2024 00:06:58 - FLOWVIEW IRR UPDATE: Downloading apnic.db.route.gz 23/12/2024 00:06:53 - FLOWVIEW IRR UPDATE: Downloading apnic.db.route-set.gz 23/12/2024 00:06:48 - FLOWVIEW IRR UPDATE: Downloading apnic.db.role.gz 23/12/2024 00:06:43 - FLOWVIEW IRR UPDATE: Downloading apnic.db.peering-set.gz 23/12/2024 00:06:38 - FLOWVIEW IRR UPDATE: Downloading apnic.db.organisation.gz 23/12/2024 00:06:33 - FLOWVIEW IRR UPDATE: Downloading apnic.db.mntner.gz 23/12/2024 00:06:28 - FLOWVIEW IRR UPDATE: Downloading apnic.db.key-cert.gz 23/12/2024 00:06:23 - FLOWVIEW IRR UPDATE: Downloading apnic.db.irt.gz 23/12/2024 00:06:18 - FLOWVIEW IRR UPDATE: Downloading apnic.db.inetnum.gz 23/12/2024 00:06:13 - FLOWVIEW IRR UPDATE: Downloading apnic.db.inet6num.gz 23/12/2024 00:06:08 - FLOWVIEW IRR UPDATE: Downloading apnic.db.inet-rtr.gz 23/12/2024 00:06:03 - FLOWVIEW IRR UPDATE: Downloading apnic.db.filter-set.gz 23/12/2024 00:06:01 - MAILER INFO: Mail successfully sent via SMTP from 'Cacti 1.2.x Prod <EMAIL>', to 'Administrator <EMAIL>', cc '', bcc '', and took 0.06 seconds, Subject 'Cacti System Warning' 23/12/2024 00:06:01 - POLLER: Poller[Main Poller] PID[1020990] WARNING: Cactid/Cron is out of sync with the Poller Interval! The Poller Interval is '60' seconds, with a maximum of a '60' second Cactid/Cron, but 299.4 seconds have passed since the last poll! 23/12/2024 00:05:58 - FLOWVIEW IRR UPDATE: Downloading apnic.db.domain.gz 23/12/2024 00:05:53 - FLOWVIEW IRR UPDATE: Downloading apnic.db.aut-num.gz 23/12/2024 00:05:48 - FLOWVIEW IRR UPDATE: Downloading apnic.db.as-set.gz 23/12/2024 00:05:43 - FLOWVIEW IRR UPDATE: Downloading apnic.db.as-block.gz 23/12/2024 00:05:43 - FLOWVIEW IRR UPDATE: IRR Source:apnic, Current Serial:12769501, Last Serial:12760161 23/12/2024 00:05:01 - MAILER INFO: Mail successfully sent via SMTP from 'Cacti 1.2.x Prod <EMAIL>', to 'Administrator <EMAIL>', cc '', bcc '', and took 0.06 seconds, Subject 'Cacti System Warning'

Maybe if we can do a exec in the background, and have a flag to let flowview_poller_bottom, the donwload is done, the import can be done inline. Even if on this log I don't wee the import!

Maybe keep in settings table, the imported serial number, and the new serial number, so if the number is not the same, that an import has to be done.

or something like that.

[TheWitness]

It's supposed to be in background already.