May 2018
Intermediate to advanced
412 pages
9h 3m
English
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Supervision Is the Basis of Reliability
Let’s briefly recap. In that last example, we ran our OTP sequence application using mix. Looking at just our code, we see that a supervisor process and two worker processes got started. These were knitted together so our system continued to run with no loss of state even if the worker that we talked to crashed. And any other Erlang process on this node (including IEx itself) can talk to our sequence application and enjoy its stream of freshly minted integers.
You probably noticed that the start function takes two parameters. The second corresponds to the value we specified in the mod: option in the mix.exs file (in our case, the counter’s initial value). The first parameter specifies the status of the ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.