A common usage is to load the module in a startup file called via the PerlRequire directive. There are two configurations which are server-specific and which can be done upon server startup:. This can be used as a simple way to have apache servers establish connections on process startup.
This configures the usage of the ping method, to validate a connection. Setting the timeout to 0 will always validate the database connection using the ping method default. This can be used for drivers, which do not implement the ping-method.
For an example of the configuration order see startup. This can either be done in startup. Setting the variable to 1, just reports about a new connect. Setting the variable to 2 enables full debug output.
Apache::DBI version 0. Apache::DBI versions less than 1. Apache::DBI v0. If you are using a database abstraction layer such as Class::DBI or DBIx::Class that already manages persistent connections for you, there is no need to use this module in addition.
For more information on module installation, please visit the detailed CPAN module installation guide. The usage of this module is absolutely transparent!
The database access uses Perl's DBI. To install Apache::DBI, copy and paste the appropriate command in to your terminal. Fork metacpan. Keyboard Shortcuts. It's usually advised to not make extra installations to the system Perl. Apple may upgrade components through regular system updates, which could interfere with any modifications you have made, and if you make a mistake with an installation, it's difficult to remedy it without doing a full system reinstallation or having some serious understanding of the operating system guts.
So, since you've already got another Perl installation ready, I would strongly encourage you to stick with that one. However, you probably shouldn't be manually installing libraries if there is already a distribution available on macports.
I used port search dbi and port search dbd to find them: the distributions are named p5-dbi and p5-dbd-mysql. I've never done that, so I can't advise on the best way to do it. Great answer, Ether. Having done this far too many times to count, I can give you a few pieces of advice:. Note: I am apparently limited to a single link in the post, so I had to remove all of my annotations. Thankfully, there is Delicious where I've stored them all with a stackoverflowmacports tag. I love Apple but they have absolutely no qualms about breaking custom setups of their software as often as possible.
I used to use Fink but they got left in the dust ages ago in terms of ease of use and spectrum of available software. Once you're on the Macports train, it should become the very first place you look for any software.
That part of the file system hierarchy is yours to play with. If you do any work with Perl and you use Macports' version, you will absolutely find yourself in a situation Macports doesn't have the one CPAN module you're looking for. And, really, given that there are two and a half billion CPAN modules, who can blame them?
PL; make; make test; sudo make install; cha; cha; cha and long for the ease of use you've grown accustomed to with Macports. Just grab the INC output from perl -V and tack it on the end And finally You don't have Mother Apple protecting you with Software Updates for the Macports installed software which have just as many bugs and security exploits as the very same software Apple bundles. By updating frequently, you'll stay ahead of the baddies and by automating it, the upgrades will actually happen and you won't end up as I have in the past with a full weekend blown because you had a mountain of outdated ports to upgrade.
Note: Macports stages its updates and if it fails at any point, your current version continues to work. Apple could learn a thing or two from them, I tell ya So, that's all I can think of a the moment. Hopefully the lessons above will get you going quickly and save all of the time, effort and stress I've experienced in past years in learning it.
I would argue it's still far better than the alternative: Hating Apple because they break all of your nice things Default is 0, which turns off the cache. After finishing the request, a special handler skips through the cache and deletes all outdated entries entries, which are older than the CacheTime.
This configures the minimum time in seconds between two successive runs of the CleanupHandler, which deletes all outdated entries from the cache. The default is -1, which disables the CleanupHandler. Setting the interval to 0 runs the CleanupHandler after every request.
For a heavily loaded server this should be set to a value, which reflects a compromise between scanning a large cache possibly containing many outdated entries and between running many times the CleanupHandler on a cache containing only few entries.
This configures the project ID used to create a semaphore ID for shared memory. It can be set to any integer 1 to or it will default to a value of 1. In this case, use a different project ID on each server. If you are reading this because you suspect you have a permission issue or a collision with a semaphore, use 'ipcs -s' to list semaphores and look for the Semaphore ID from the apache error log.
This enables the usage of shared memory for the cache. Instead of every server maintaining it's own cache, all servers have access to a common cache. This should minimize the database load considerably for sites running many servers. The number indicates the size of the shared memory segment in bytes.
This size is fixed, there is no dynamic allocation of more segments. As a rule of thumb multiply the estimated maximum number of simultaneously cached users by to get a rough estimate of the needed size. Values below will be overwritten with the default This can either be done in startup. Setting the variable to 1, just reports about a cache miss. Setting the variable to 2 enables full debug output.
Apache::DBI version 0. Apache::DBI versions less than 1. Apache::DBI v0. In some cases it is more secure not to put the username and the password in the. The following example shows a solution to this problem:. Apache::AuthDBI by Edmund Mergl; now maintained and supported by the modperl mailinglist, subscribe by sending mail to modperl-subscribe perl.
For more information on module installation, please visit the detailed CPAN module installation guide. In case of 'valid-user' the request is accepted. The following example shows a solution to this problem: httpd. To install Apache::DBI, copy and paste the appropriate command in to your terminal.
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