[erlang-questions] Any advice to a Java webhost company about Erlang hosting?

Dmitry Kolesnikov <>
Wed Feb 5 15:33:16 CET 2014


Hello,

One small correction here. 
You do not need openssl as dependencies if you disable dynamic-ssl while building OTP.
In this case release becomes self-containing (unless you are using some other features like jinterface, wx, etc). 

- Dmitry


On 05 Feb 2014, at 16:28, Loïc Hoguin <> wrote:

> On 02/05/2014 02:28 PM, Michael Turner wrote:
>>> Pardon my ignorance but what does a Java hosting company do exactly compared to just getting a server?
>> 
>> I love it when people say "just" about things like this. I'd like to
>> get them slightly drunk and make them a bet: for every minute /under/
>> the amount they estimate that setup will take, I'll pay them $5. For
>> every minute /over/ their estimate, /I/ get $5. I'd probably be able
>> to retire early just by going to hacker meetups and offering to buy a
>> round for everybody at a bar nearby.
> 
> Perhaps instead of trying to be a smartass you could actually have answered the question so people get a better idea what a Java hosting company actually does? Not everyone has Java production experience here.
> 
> I only know Erlang myself. With Erlang, the only dependency you need on top of the base system is openssl. Then you can use releases just fine. Of course, openssl is already installed when you rent a server because it's an openssh dependency. So you pretty much have nothing to install.
> 
> So the only setup you actually need to do is customize the environment like you want to, which you have to do regardless of the hosting solution. For example changing a few sysctl values, opening ports or creating a couple users. Things a script does just fine, if you need to automate it.
> 
> Past initial setup, you do have to upgrade the server yourself, but this only takes me at most a few minutes per upgrade with Arch Linux, because this is a rolling release and I already did the same operation for my laptop so I already know if there's something other than pacman -Syu that needs to be done. And since this is just a base system + openssl, the updates are actually very few.
> 
> If I have ten servers, then I just use cssh or similar and do the ten servers in one go so the time it takes to handle more servers is barely more than the time it takes to handle one.
> 
> Hence my question. What do Java hosting companies do and what benefits do you have going with a company compared to doing it yourself?
> 
> I do not think there is any benefit to going with an Erlang hosting company unless it provides some sort of elastic cloud along with advanced tools to quickly manage or inspect the running nodes. For example a way to remove a node from receiving external requests temporarily to inspect its state and debug an issue without having to fight for resources or risk inconveniencing users. But that's only needed by medium to big systems, plenty of smaller applications couldn't care less about it.
> 
> -- 
> Loïc Hoguin
> http://ninenines.eu
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