Google Is 2B Lines of Code, All in One Place
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Re: Google Is 2B Lines of Code, All in One Place
#2Those are mind-boggling numbers.
Although I kind of doubt that "almost every" engineer has access to the entire repo, especially when it comes to the search ranking stuff.
Re: Google Is 2B Lines of Code, All in One Place
#3"LGTM is google speak for Looks good to me" - actually common outside of Google.
Re: Google Is 2B Lines of Code, All in One Place
#4Comparing "Google" to Windows isn't really a fair comparison. I'm sure all of the code that represents products that Microsoft has in the wild far exceeds 2B lines.
Re: Google Is 2B Lines of Code, All in One Place
#5Those are mind-boggling numbers. Although I kind of doubt that "almost every" engineer has access to the entire repo, especially when it comes to the search ranking stuff.
From the article:
"There are limitations this system. Potvin says certain highly sensitive code—stuff akin to the Google’s PageRank search algorithm—resides in separate repositories only available to specific employees."
Re: Google Is 2B Lines of Code, All in One Place
#6"The two internet giants (Google and Facebook) are working on an open source version control system that anyone can use to juggle code on a massive scale. It’s based on an existing system called Mercurial. “We’re attempting to see if we can scale Mercurial to the size of the Google repository,” Potvin says, indicating that Google is working hand-in-hand with programming guru Bryan O’Sullivan and others who help oversee coding work at Facebook."
Why Mercurial instead of Git?
Re: Google Is 2B Lines of Code, All in One Place
#7Those are mind-boggling numbers. Although I kind of doubt that "almost every" engineer has access to the entire repo, especially when it comes to the search ranking stuff.
Did you read the article? "There are limitations this system. Potvin says certain highly sensitive code—stuff akin to the Google’s PageRank search algorithm—resides in separate repositories only available to specific employees. "
Re: Google Is 2B Lines of Code, All in One Place
#8Those are mind-boggling numbers. Although I kind of doubt that "almost every" engineer has access to the entire repo, especially when it comes to the search ranking stuff.
> Potvin says certain highly sensitive code—stuff akin to the Google’s PageRank search algorithm—resides in separate repositories only available to specific employees.
Re: Google Is 2B Lines of Code, All in One Place
#9I wonder how close the "piper" system is to the code.google.com project.
Re: Google Is 2B Lines of Code, All in One Place
#10This explains quite some things.
Still, this is not a very forward-thinking solution. Building and combining microservices – effectively UNIX philosophy applied to the web – is the most effective way to make progress.
EDIT: Seems like I misunderstood the article – from the way I read it, it sounded like Google has a monolithic codebase, with heavily dependent products, deployed monolithically. As zaphar mentioned, it turns out this is just bad phrasing in the article and me misunderstanding that phrasing.
I take everything back I said and claim the opposite.