Greetings, I am looking to set up a mod_perl handler which keep track of the count of requests coming in. Each child process will store this data in local memory and after 5-10 minutes have passed, each child process will merge its data into a central database, the goal being that each child will not have to hit a database for every request.
I have a handler that contains a data in $self for each child and when a REQUEST comes through, a check is made to see if the interval has passed and if so, the child will merge its data with the database. The problem is --- how do i additionally have each child merge its data on a schedule -- that is, without relying only on an incoming request to "hit" that specific child process? I have tried 2 attempted solutions with no luck. (Keep in mind that as long as requests are coming in, the children will eventually merge their data within a good degree of accuracy, but only if requests are coming in.) Attempt #1 --- configure a signal handler and send a signal to each child process - this didn't seem to work but i am about to try some more tests. I have read in the docs, however, that sending direct signals to mod_perl children is not recommended. Attempt #2 --- register a Clean Up hook. This doesn't seem to work for me because, as i understand so far, assigning a reference to a sub via PerlCleanupHandler is not the same as calling the object's method. Hence ... i do not have access to $self nor the local memory. So, the sub is called via the Clean Up phase, but the sub is meant to be called as a method (and i can't use $self has a hash ref unless called as a method). Other considerations: - Perhaps each child process will need to use it's own SQLite or similar cache? - Perhaps there is another hook that i do not know about that better suits such needs? - Perhaps my mistake is obvious -- configuring Clean up hook incorrectly, etc. Any information will be greatly appreciated. I hope everyone had a Happy New Year. On a side note -- there is a storage facility in LA called "Dollar Self Storage" ... :) -- jeffa
