Thanks for the tip... we'll consider it. I would never have considered "backoff" as a keyword for this.
On Tue, Apr 21, 2009 at 6:08 PM, Jonathan Yu <jonathan.i...@gmail.com> wrote: > Hi: > > What about http://search.cpan.org/~dlo/Proc-BackOff-0.02/lib/Proc/BackOff.pm > > Proc::BackOff. It seems to implement a function similar to TCP packet > retry backoff... > > The idea is that for every failure you wait X time before the next > request; the next time, you wait 2X. etc. But there is also an > exponential backoff one. > > Hope this helps. I haven't read the module description thoroughly but > it deals with doing retries in a way that doesn't totally hammer a > system and bring it to its knees. > > Cheers, > > Jonathan > > On Tue, Apr 21, 2009 at 4:11 PM, Bill Ward <b...@wards.net> wrote: >> I am planning to write a new module that would manage retries. Let's say >> you want to talk to some network service that might have errors or be >> offline, and if you get certain kinds of errors (e.g. the host is being >> rebooted, so it's not responding, but will shortly) you want to try again >> after some set interval. But you don't want to retry forever - eventually >> it should be a hard error. >> >> We already have this kind of logic embedded in one place but I want to write >> a generic object that would basically hold the retry parameters >> (RETRY_COUNT, RETRY_DIE, RETRY_SLEEP, RETRY_SLEEP_MULTIPLIER, >> RETRY_SLEEP_LIMIT) and respond to queries like: >> >> - Something failed - should I retry or die? (if number of retries so far is >> less than RETRY_COUNT) >> - How long should I sleep for / wake me up when the sleep time has passed >> - etc. >> >> I haven't seen anything on CPAN that does this - a quick search for "retry" >> on CPAN yields tons of results but they all appear to be very >> domain-specific or just a mention in the documentation of some particular >> module. >> >> Something like Object::Retry maybe? Then things can inherit from it? >> > -- Check out my LEGO blog at http://www.brickpile.com/ View my photos at http://flickr.com/photos/billward/ Follow me at http://twitter.com/williamward
