Hi Marjan,
On Mon, May 16, 2016 at 9:32 PM, Marjanw <pr002...@proximus.be> wrote:
> Hi all,
>
> After I got my new LSMB environment (1.4.27 / AMD-450) up and running
> I was a bit surprised to find it performing about the same as my old
> LSMB environment (1.2.26 / AMD Duron 800MHz).
> Ok, the AMD-450 (2x 1.65GHz) isn't a beast, but 10 secs to list
> the Belgium COA on the screen is a long time!
>
It definitely is! Before you spend more time on various installations, you
want to upgrade to 1.4.28. There's a bug in the CoA screen of all 1.4
versions up to and including 1.4.27 which makes it run WAAYYYY too long.
(It's not Perl performance here, it's the underlying query that's simply
not as efficient as it can be).
We had an instance where it took up to 23 secs run the CoA query. With
1.4.28, that's now 100ms. 230x faster!
You may want to try that before you try any of the other installation
options.
So I gave starman a try, using the instructions in the INSTALL.
> The Belgium COA now took 7 secs to complete due to better Perl
> performance!
>
Well, and if you upgrade to 1.4.28, the response will "feel" instantaneous.
> On the other hand most of us are familiar with Apache.
> Apache can serve both static and dynamic content, offers virtual
> hosting, etc. Wouldn't it be nice if we could use LSMB on Apache
> in a faster configuration than good old slow CGI?
>
Absolutely. That's why we have been working to achieve exactly that! And
Plack is indeed the answer. The easiest/best way to achieve it, I would
expect is to run Apache2 with mod_fastcgi. Unfortunately, that's not in
Debian's base repository; it's in the non-free repo. mod_fastcgi can be
used with 'plackup -s FCGI tools/starman.psgi' (never mind that you're not
using it with Starman, but plackup instead) where mod_fastcgi will manage
starting and stopping the fastcgi server process. Unfortunately, I don't
have the entire configuration file ready to provide you, but the 1.5
version has a configuration which lets Apache serve static files and passes
the rest to Starman (note: starman, not plackup; you need to change the
config to achieve that).
I looked at the Dancer deployment page and learned that you can
> run Dancer from Apache with Plack via mod_perl.
> I installed mod_perl from Debian Jessie.
> Using https://metacpan.org/pod/Plack::Handler::Apache2 I modified
> the ledgersmb-httpd-2.4.conf and created a startup.pl to preload
> the application.
>
What is "the application" to you? Do you preload the same modules as
LedgerSMB/PSGI.pm? Or more? All modules *not* preloaded in
LedgerSMB/PSGI.pm aren't expected to be "preloading compatible".
> After some troubleshooting I managed to get Apache running and
> the application preloading without any errors in the Apache
error.log file.
>
Very nice. Once it's working, could you share your setup, so we can include
it in our 1.4 and 1.5 configuration examples?
However when I try to login the application fails:
>
> 2016/05/16 17:22:14 - ERROR - LedgerSMB::_error
> /opt/ledgersmb/1.4.27/LedgerSMB.pm (639) -- Not a HASH reference at
> /opt/ledgersmb/1.4.27/LedgerSMB/Template/HTML.pm line 90.
>
> What's going wrong here?
Looks if something isn't properly initialized.
>
Could be. Without your startup.pl, it's a bit hard to tell what exactly
might have gone wrong. Can you send your startup.pl? That way we can have a
look at what might be the cause. On a Starman-hosted setup, I'm definitely
not seeing that error.
--
Bye,
Erik.
http://efficito.com -- Hosted accounting and ERP.
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