[Catalyst] Plugin::Session lazy start
I have an application that uses sessions with a FastMmap store. This application also includes a custom script (using Catalyst::ScriptRole) used to perform certain administrative tasks from the command line. The problem is that Catalyst tries to unlink and recreate the session cache every time it starts (somewhere in the bowels of MyApp-setup(), I imagine). This is obviously a bad idea if the application is running, but it is a problem even if the application isn't running if the session cache is owned by a different user (e.g. www) than the one that runs the script (e.g. des). Is there a way to have C::Plugin::Session (or C::P::S::Store::FastMmap) initialize the cache on first use instead of at startup? As an alternate solution, is there a way to have it use a different file name every time it starts? DES -- Dag-Erling Smørgrav - d...@des.no ___ List: Catalyst@lists.scsys.co.uk Listinfo: http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/catalyst Searchable archive: http://www.mail-archive.com/catalyst@lists.scsys.co.uk/ Dev site: http://dev.catalyst.perl.org/
Re: [Catalyst] Plugin::Session lazy start
Will Crawford billcrawford1...@gmail.com writes:
Dag-Erling Smørgrav d...@des.no writes:
Is there a way to have C::Plugin::Session (or C::P::S::Store::FastMmap)
initialize the cache on first use instead of at startup?
{ ..., unlink_on_exit = 0 } in your config.
delete the cache when you're done is very different from don't create
the cache until you actually need it.
As an alternate solution, is there a way to have it use a different file
name every time it starts?
Personally I go with having a relative path in the myapp_local.conf
that puts them all in a tmp/ subdirectory of where I'm running the
server, then an absolute path in myapp.conf for the real thing.
The script runs with the exact same configuration as the application,
including myapp_local.conf. That's the whole point of using a Catalyst
script instead of a standalone program.
DES
--
Dag-Erling Smørgrav - d...@des.no
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Re: [Catalyst] Plugin::Session lazy start
On Wed, May 23, 2012 at 1:58 AM, Dag-Erling Smørgrav d...@des.no wrote:
As an alternate solution, is there a way to have it use a different file
name every time it starts?
Here's a snippet to do that:
conf.yml
--
Plugin::Session:
storage: /tmp/some-prefix-__UID__.session
MyApp.pm
--
Plugin::ConfigLoader = {
substitutions = {
UID = sub { $ },
},
},
https://metacpan.org/module/Catalyst::Plugin::ConfigLoader
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Re: [Catalyst] Plugin::Session lazy start
Because I've just read perlvar: $REAL_USER_ID or $UID instead of $.
- Alex
Am 2012-05-23 15:54, schrieb Ashley Pond V:
On Wed, May 23, 2012 at 1:58 AM, Dag-Erling Smørgrav d...@des.no wrote:
As an alternate solution, is there a way to have it use a different file
name every time it starts?
Here's a snippet to do that:
conf.yml
--
Plugin::Session:
storage: /tmp/some-prefix-__UID__.session
MyApp.pm
--
Plugin::ConfigLoader = {
substitutions = {
UID = sub { $ },
},
},
https://metacpan.org/module/Catalyst::Plugin::ConfigLoader
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Re: [Catalyst] Plugin::Session lazy start
Dag-Erling Smørgrav d...@des.no writes: Thanks, that's a neat workaround (combined with unlink_on_exit). I was wrong about that last bit - unlink_on_exit automatically defaults to a sane value (unlink the file if you created it, leave it alone if it already existed). If anything, you'd want to set it to 0 so sessions are persistent across server restarts. BTW, this is not a perfect solution, since all processes owned by the same user will now share a session cache. However, this should rarely (if ever) be a problem. DES -- Dag-Erling Smørgrav - d...@des.no ___ List: Catalyst@lists.scsys.co.uk Listinfo: http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/catalyst Searchable archive: http://www.mail-archive.com/catalyst@lists.scsys.co.uk/ Dev site: http://dev.catalyst.perl.org/
Re: [Catalyst] Plugin::Session lazy start
Alexander Hartmaier alexander.hartma...@t-systems.at writes: Because I've just read perlvar: $REAL_USER_ID or $UID instead of $. assuming use English DES -- Dag-Erling Smørgrav - d...@des.no ___ List: Catalyst@lists.scsys.co.uk Listinfo: http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/catalyst Searchable archive: http://www.mail-archive.com/catalyst@lists.scsys.co.uk/ Dev site: http://dev.catalyst.perl.org/
Re: [Catalyst] Plugin::Session lazy start
On Wed, May 23, 2012 at 7:42 AM, Alexander Hartmaier
alexander.hartma...@t-systems.at wrote:
Because I've just read perlvar: $REAL_USER_ID or $UID instead of $.
I think this is generally excellent advice but I want to argue against
it in this case.
UID = sub { $ } is sufficiently semantic *and* edifying. E.g., Oh!
That's the special var for UID. It finally makes sense.
use English;
UID = sub { $UID } is redundant to point of being annoying and even
distracting (to me).
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