Re: cache a object in modperl
Wesley Peng <[email protected]>
| Newsgroups | gmane.comp.apache.mod-perl |
|---|---|
| Message-ID | <[email protected]> |
That's great. Thank you Adam. Adam Prime wrote: > If the database doesn't change very often, and you don't mind only > getting updates to your database when you restart apache, and you're > using prefork mod_perl, then you could use a startup.pl to load your > database before apache forks, and get a shared copy globally in all your > apache children. > > https://perl.apache.org/docs/1.0/guide/config.html#The_Startup_File > > This thread from 13 years ago seems to have a clear-ish example of how > to use startup.pl to do what i'm talking about. > > If you need it to update more frequently than when you restart apache, > you could potentially use a PerlChildInitHandler to load the data when > apache creates children. This will use more memory, as each child will > have it's own copy, and can also result in situation where children can > have different versions of the database loaded and be serving requests > at the same time. If you want to go this way you might want to also add > a MaxRequestsPerChild directive to your apache config to make sure that > you're children die and get refreshed on the regular, if you don't > already have one. > > Adam > > > On 9/13/2020 10:51 PM, Wesley Peng wrote: >> Hello >> >> I am not so familiar with modperl. >> >> For work requirement, I need to access IANA TLD database. >> >> So I wrote this perl module: >> https://metacpan.org/pod/Net::IANA::TLD >> >> But, for each new() in the module, the database file will be >> downloaded from IANA's website. >> >> I know this is pretty Inefficient. >> >> My question is, can I cache the new'ed object by modperl? >> >> If so, how to do? >> >> Thanks.