October 2007
Intermediate to advanced
58 pages
59m
English
book
Troubleshooting Ruby Processes: Leveraging System Tools when the Usual Ruby Tricks Stop Working
by Philippe Hanrigou
Content preview from Troubleshooting Ruby Processes: Leveraging System Tools when the Usual Ruby Tricks Stop Working
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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.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.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.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.
Section #2. Ruby Troubleshooting: The Usual Suspects
Even though strace, lsof, and friends are powerful tools, most of the time you should not start with them. This section is a brief recap of the techniques typically used to troubleshoot a problem with a Ruby process.
raise, puts, and debug()
Without a doubt, the most popular way to investigate an unexpected behavior in a Ruby program is to add a raise some_object.inspect statement or a puts some_object.inspect statement in the code and rerun the same test or use case. Quick and dirty...and terribly efficient (especially the raise version: It is easy to spot, and you won’t forget to remove it).
Rails has a variant for HTML rendering in a view: the debug() function. This function outputs 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.
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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.