Suchergebnisse für „CPAN“
mySQL servers have their own mind and sometimes just disappear. They go away from a client leaving it alone if the complete server is dying, if a client is doing unexpected things and sometimes even without any known reason.
Web scripts usually do one thing at a time which is quite good as long as there is not too much to do. But serving thousands of request per minute with thousands of source code lines per request starts getting challenging. Bon Jovi asked for help for web scripts some time ago by writing his song "(Whos gonna) work for the working man". Well, there are little chances that he had something else in mind, but who cares.
Zoe ist seit einiger Zeit trocken und lange Zeit auch Nachts (mit seltenen Unfällen). Wenn sie Nachts mal muss, geht sie aufs Töpfchen und ruft so lange nach Mama bis wir wach sind. Seit einigen Tagen klappt das leider nicht mehr.
SQL injections are well-known and could easily be used against against most PHP scripts, but there is a much easier injection leak in many Perl scripts: Regular Expression injection.
DBI is the universal Perl database interface but it's using a so-called DBD driver module for each database type. I've been searching but didn't find a DBD module fitting my needs and so I started writing a new one.
IO::CaptureOutput is a great module but provides limited control. Here is a quick hack to replace the capture_exec function while getting more control about what is being done.
OOP in Perl is pretty simple: Every reference may become an object. But trying to use a reference instead of an object for an OOP call results in Can't call method on unblessed reference.
What is profiling?
Each script should care of resources (time, memory or CPU time) being used, but some don't. Profiling is a detailed analysis of your script's behavior while it's running.A profiler notices every processed line, it's callers and called functions and time required to process it.
Happy new year to all of you!
A recently finished refactoring-project heavily uses Memcached to speed up access to calculated statistics data, but creation of this data is very slow and I decided to preheat the cache by filling it within a nightly cronjob.
Alex, a co-worker, asked me about sending emails today. He has to send out a mail from a development box which usually isn't allowed to send any emails to the outside world. This is archived by re-mapping the hostname of the company's SMTP-server to a dedicated internal IP providing an SMTP server without outbound abilities. I answered his questions but didn't have the time to explain the background. Here is it.
