[Haskell-cafe] Long running Haskell program

David Leimbach leimy2k at gmail.com
Wed Nov 11 10:43:41 EST 2009

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 :-)


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