You can still have an always up service – but it will require a bit of work and a load balancing proxy set up in front of multiple apache instances. You can then restart each backend independently without an issue.
If the apaches are relatively lightweight you can run two on the same machine (e.g. on ports 8000 & 8001) and another one set up as a proxy on 80/443 which proxies back to these two.
I use this for a dev/live setup on a VM – where 8000 is live and 8001 is dev – and a lightweight apache proxies back to the other two…
From: Mithun Bhattacharya <mithnb@gmail.com>
Sent: 14 September 2020 06:49
To: mod_perl list <modperl@perl.apache.org>
Subject: Re: cache a object in modperl [EXT]
Haha I can't answer that - I work with systems which are always up. We have users working across the globe so there is no non-active time.
In my case I would have to throw an independent cache (my current choice is REDIS but you could chose a DB_File for all I know) and refresh it as needed - IANA I could hit every 30 min to check for update :)
On Mon, Sep 14, 2020 at 12:44 AM Wesley Peng <wpeng@pobox.com<mailto:wpeng@pobox.com>> wrote:
Mithun Bhattacharya wrote:
> Does IANA have an easy way of determining whether there is an update
> since a certain date ? I was thinking it might make sense to just run a
> scheduled job to monitor for update and then restart your service or
> refresh your local cache depending upon how you solve it.
Yes I agree with this.
I may monitor IANA's database via their version changes, and run a
crontab to restart my apache server during the non-active user time
(i.e, 3:00 AM).
Or do you have better solution?
Thanks.
--
The Wellcome Sanger Institute is operated by Genome Research
Limited, a charity registered in England with number 1021457 and a
company registered in England with number 2742969, whose registered
office is 215 Euston Road, London, NW1 2BE.
If the apaches are relatively lightweight you can run two on the same machine (e.g. on ports 8000 & 8001) and another one set up as a proxy on 80/443 which proxies back to these two.
I use this for a dev/live setup on a VM – where 8000 is live and 8001 is dev – and a lightweight apache proxies back to the other two…
From: Mithun Bhattacharya <mithnb@gmail.com>
Sent: 14 September 2020 06:49
To: mod_perl list <modperl@perl.apache.org>
Subject: Re: cache a object in modperl [EXT]
Haha I can't answer that - I work with systems which are always up. We have users working across the globe so there is no non-active time.
In my case I would have to throw an independent cache (my current choice is REDIS but you could chose a DB_File for all I know) and refresh it as needed - IANA I could hit every 30 min to check for update :)
On Mon, Sep 14, 2020 at 12:44 AM Wesley Peng <wpeng@pobox.com<mailto:wpeng@pobox.com>> wrote:
Mithun Bhattacharya wrote:
> Does IANA have an easy way of determining whether there is an update
> since a certain date ? I was thinking it might make sense to just run a
> scheduled job to monitor for update and then restart your service or
> refresh your local cache depending upon how you solve it.
Yes I agree with this.
I may monitor IANA's database via their version changes, and run a
crontab to restart my apache server during the non-active user time
(i.e, 3:00 AM).
Or do you have better solution?
Thanks.
--
The Wellcome Sanger Institute is operated by Genome Research
Limited, a charity registered in England with number 1021457 and a
company registered in England with number 2742969, whose registered
office is 215 Euston Road, London, NW1 2BE.