On Wed, Nov 11, 2009 at 8:20 AM, Andy Stewart <lazycat.mana...@gmail.com>wrote:
> David Leimbach <leim...@gmail.com> writes: > > > As some of you may know, I've been writing commercial Haskell code for a > little bit here (about a > > year and a half) and I've just recently had to write some > > code that was going to run have to run for a really long time before > being restarted, possibly > > months or years if all other parts of the system cooperate as > > it's part of a server infrastructure management system. > > > > I recently ran into some serious space leak difficulties that would > ultimately cause this program to > > crash some time after startup (my simulator is also > > written in Haskell, and runs a LOT faster than the real application ever > could, this has enabled me > > to fast forward a bit the data growth issues and crash > > in minutes instead of days!) > > > > Anyway, rather than try to paste it all here with images and such I > thought I'd stick it up on my > > blog so others could maybe benefit from the anecdote. > > It's difficult to disclose enough useful information as it is commercial > code not under an open > > source license, but there's neat diagrams and stuff there > > so hopefully the colors are at least amusing :-) > > > > > http://leimy9.blogspot.com/2009/11/long-running-haskell-applications.html > Can you copy you blog at here? > http://leimy9.blogspot.com/2009/11/long-running-haskell-applications.html > is filter by GFW (http://en.wikipedia.org/wiki/Golden_Shield_Project) i > can't see it. > > About crash free program, you can consider multi-process design, keep > Simple and Stable core running in RootProcess, and Core module won't > crash, and make unstable module running in ChildProcess, if you occur > some un-catch exception from ChildProcess, just reboot those sub-module. > > Believe it or not, this is a stack of Erlang <-> Haskell <-> C. It works via pipes and is a concurrent system of management.
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