jm + gotchas   2

What's confusing about Kafka: a list
At a recent call, Neha said “The most confusing behavior we have is how producing to a topic can return errors for few seconds after the topic was already created”. As she said that, I remembered that indeed, this was once very confusing, but then I got used to it.  Which got us thinking: What other things that Kafka does are very confusing to new users, but we got so used to them that we no longer even see the issue?
kafka  messaging  tips  gotchas 
march 2015 by jm
Falsehoods programmers believe about time
I have repeatedly been confounded to discover just how many mistakes in both test and application code stem from misunderstandings or misconceptions about time. By this I mean both the interesting way in which computers handle time, and the fundamental gotchas inherent in how we humans have constructed our calendar — daylight savings being just the tip of the iceberg.

In fact I have seen so many of these misconceptions crop up in other people’s (and my own) programs that I thought it would be worthwhile to collect a list of the more common problems here.


See also the follow-up: http://infiniteundo.com/post/25509354022/more-falsehoods-programmers-believe-about-time-wisdom

(via Marc)
via:marcomorain  time  dates  timezones  coding  gotchas  calendar  bugs 
october 2014 by jm

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