I have setup Tsung to do some load testing on an ubuntu VM. Tsung itself works fine if I write the setup scripts by hand, but I would like to use tsung-recorder to build my scripts dynamically through the browser. When I start tsung-recorder I get the following error, however: cpjolicoeur@vbox-ubuntu-koala:~$ tsung-recorder start Star...
I'm trying to start an Erlang app that is failing. All I see in the shell is: =INFO REPORT==== 7-Jan-2010::17:37:42 === application: ui exited: {shutdown,{ui_app,start,[normal,[]]}} type: temporary How can I get Erlang to give me more information as to why the application is not starting? There currently is no other output...
When using file:read_file(x) is it necessary to close the returned file? {ok, File} = file:read_file("maillog.sample"), file:close(File), ...
What is the most awesome gem I should use to call Erlang functions from Ruby app? I wish to use rspec for testing some gen_server stuff. Erlectricity looking solid, but there is no something like Node#rpc, just message passing. Any ideas? ...
When i start yaws (yaws -i --conf config/yaws.conf) i get this line in the output: Running with debug checks turned on (slower server) It depends on the "-i" option? Or where did i turned on debug checks? No mention of debug in the config file... thx edoardo ...
I have a little escript file that connects to a node and does some rpc calls and stuff... It works fine for short or longnames but relies on standard http comms for distributed Erlang. I would like to use it but with https/SSL for distribution. To start a 'normal' Erlang system with SSL you have to pass in the various flags to tell Er...
Is there is a simple way to measure a function's execution time if I run that function from an erlang shell? ...
I'm developing a document oriented application and need to manage user access to the documents. I have a module that handles user authentication, and another module that handles document CRUD operations on the data store. Once a user is authenticated I need to enforce what operations the user can and cannot perform to documents based upo...
Just wondering if anyone could give a working example of using the erlang-mysql module (http://code.google.com/p/erlang-mysql-driver/). I am new to erlang and I am trying to replace some old scripts with a few erlang batch processes. I am able to connect to the DB and even complete a query, but I am not sure how I use the results. Her...
Is there any way to define an Erlang function from within the Erlang shell instead of from an erl file? ...
I come from a Java and Ruby background and I was wondering if there is any equivalent of "method_missing" in Erlang. I have looked at the documentation and the closest I can see is the use of erl_eval and erl_parse, but I wanted to know if there is any other way? ...
I have a couple of files in mnesia directory, like fs_my@node_14585_1263_545605_962084.273 fs_my@node_14702_1263_545842_879762.273 fs_my@node_14585_1263_545605_962084.290 ... Can I remove them (because it is big files) without risk to lose data? Why does these files apear? What are these files for? Is it safe to remove them? ...
When I start up a function within the erl shell, it works fine. When I try to invoke the same function with erl ... -s module function, it fails. The line of code that eventually fails is: start(Port) -> mochiweb_http:start([{port, Port}, {loop, fun dispatch_requests/1}]). I'm positive that Port is set correctly. My error message...
Erlang doesn't let me do: Type = bitstring. <<FirstPart:8/Type, Rest/bitstring>> = some_binary. although it lets me do: Size = 8. <<FirstPart:Size/bitstring, Rest/bitstring>> = some_binary. So, in bit string expressions, while I can pass the size through a variable, It doesnt let me pass the type through a variable. Is there any ...
Hi, I programmed in Ruby and Rails for quite a long time, and then I fell in love with the simplicity of the Sinatra framework which allowed me to build one page web applications. Is there a web framework like Sinatra available for Erlang? I tried Erlyweb but it seems far too heavyweight ...
I've got an application where I cast a message to a gen_server to start an operation, then I call the gen_server every second to gather intermediate results until the operation completes. In production, it usually takes a couple of minutes, but it's only limited by the input size and I'd like to test hour long operations, too. I want t...
Nitrogen does not seem to like pages being at the root url path, only addon paths like /web/ is there some way to get pages to show up at the root url like /mypage ? ...
I am building a site that has a lot in common with a person-on-person chess site. I was thinking of using Rails for the front-end(User Registration, Navigation, etc) and something like Scala or Erlang for the engine(Game state and maybe AI). I was wondering - Is this a good situation to use that type of design? How exactly would be be...
Is is there a built in function in nitrogen framework to get Peer IP address? If not, is there a way to get the IP address of peer which is making to request to Nitrogen App ...
Erlang has a crypto function which generates public private keys (documentation copied below). However the documentation seems vague and I can't find any example code that describes how to generate the shared prime number or the generator. Can someone post an example that generates a public/private key pair? Thanks in advance for any ...