Re: mod_ruby on Apache for Windows 2.2.17
Dear Ben On Fri, Feb 11, 2011 at 2:34 PM, Ben Noordhuis wrote: > On Fri, Feb 11, 2011 at 14:11, Zeno Davatz wrote: >>> Apache on Windows serves all requests from a single process. >> >> Apache on Linux does not do that? > > Nope. The worker and event MPMs are hybrids: serving requests from > many processes, where each process has many threads. And if all > processes are busy, Apache will simply spin up more. Ok, thank you for this hint! I am reading this now: http://httpd.apache.org/docs/2.2/en/mpm.html >>> The Ruby interpreter is not thread-safe so mod_ruby creates a Big Mutex >>> whenever it needs to run. Thus on Windows, with its single-process >>> model, mod_ruby can only serve one request at a time. >> >> So you say, that mod_ruby on Windows can _not_ leverage its power >> because Apache on Windows is a single thread process? > > Effectively single-threaded when mod_ruby is serving a request, yes. So in other words, what I am trying to achieve - trying to have a big load of Traffic on Apache for Windows with mod_ruby - does not work the same way as it does for Linux because of Apache for Windows running in a single process with many threads. So it is back to the books then. Thank you for your help, Ben and Eric. Best Zeno
Re: mod_ruby on Apache for Windows 2.2.17
On Fri, Feb 11, 2011 at 14:11, Zeno Davatz wrote: >> Apache on Windows serves all requests from a single process. > > Apache on Linux does not do that? Nope. The worker and event MPMs are hybrids: serving requests from many processes, where each process has many threads. And if all processes are busy, Apache will simply spin up more. >> The Ruby interpreter is not thread-safe so mod_ruby creates a Big Mutex >> whenever it needs to run. Thus on Windows, with its single-process >> model, mod_ruby can only serve one request at a time. > > So you say, that mod_ruby on Windows can _not_ leverage its power > because Apache on Windows is a single thread process? Effectively single-threaded when mod_ruby is serving a request, yes.
Re: mod_ruby on Apache for Windows 2.2.17
Dear Eric On Fri, Feb 11, 2011 at 2:25 PM, Eric Covener wrote: >> Apache on Linux does not do that? Our Apache on Linux with mod_ruby >> sometimes has over 1'000 sessions and about 30-50 threads open. Memory >> can go up to 10 GB. > > Normally Apache on unix uses multiple child processes. See your MPM > and MPM configuration for details. Yes, thank you. I am just reading this: http://httpd.apache.org/docs/2.2/platform/windows.html Quote: Because Apache for Windows is multithreaded, it does not use a separate process for each request, as Apache can on Unix. Instead there are usually only two Apache processes running: a parent process, and a child which handles the requests. Within the child process each request is handled by a separate thread. Fundamental stuff I did not know this explicitly. Best Zeno
Re: mod_ruby on Apache for Windows 2.2.17
Dear Eric On Fri, Feb 11, 2011 at 2:23 PM, Eric Covener wrote: >> I can execute Ruby as a CGI-script without a problem with these simple >> VirtualHost settings (I tested it with test.rbx) > > What does that have to do with debugging mod_ruby? It shows that Ruby can be executed as a CGI-Script on Apache without mod_ruby. I think that is helpful to know. Best Zeno
Re: mod_ruby on Apache for Windows 2.2.17
> Apache on Linux does not do that? Our Apache on Linux with mod_ruby > sometimes has over 1'000 sessions and about 30-50 threads open. Memory > can go up to 10 GB. Normally Apache on unix uses multiple child processes. See your MPM and MPM configuration for details.
Re: mod_ruby on Apache for Windows 2.2.17
> I can execute Ruby as a CGI-script without a problem with these simple > VirtualHost settings (I tested it with test.rbx) What does that have to do with debugging mod_ruby?
Re: mod_ruby on Apache for Windows 2.2.17
Dear Ben Thank you for your valuable input! On Fri, Feb 11, 2011 at 1:55 PM, Ben Noordhuis wrote: > On Fri, Feb 11, 2011 at 08:25, Zeno Davatz wrote: >> I am trying to debug mod_ruby to load in Apache for Windows. So far >> Apache for Windows does start with mod_ruby.so but it seems that httpd >> does not start correctly with mod_ruby enabled in Apache for Windows. > > I don't have a solution for you but I would suggest to not do this > (run mod_ruby on Windows, that is). Ok, I take notice of this. > Apache on Windows serves all requests from a single process. Apache on Linux does not do that? Our Apache on Linux with mod_ruby sometimes has over 1'000 sessions and about 30-50 threads open. Memory can go up to 10 GB. > The Ruby interpreter is not thread-safe so mod_ruby creates a Big Mutex > whenever it needs to run. Thus on Windows, with its single-process > model, mod_ruby can only serve one request at a time. So you say, that mod_ruby on Windows can _not_ leverage its power because Apache on Windows is a single thread process? This is very interesting. Best Zeno
Re: mod_ruby on Apache for Windows 2.2.17
On Fri, Feb 11, 2011 at 08:25, Zeno Davatz wrote: > I am trying to debug mod_ruby to load in Apache for Windows. So far > Apache for Windows does start with mod_ruby.so but it seems that httpd > does not start correctly with mod_ruby enabled in Apache for Windows. I don't have a solution for you but I would suggest to not do this (run mod_ruby on Windows, that is). Apache on Windows serves all requests from a single process. The Ruby interpreter is not thread-safe so mod_ruby creates a Big Mutex whenever it needs to run. Thus on Windows, with its single-process model, mod_ruby can only serve one request at a time.
Re: mod_ruby on Apache for Windows 2.2.17
Dear Eric Thank you for your reply. On Fri, Feb 11, 2011 at 1:37 PM, Eric Covener wrote: >> I really think it is the Content Handlers that do not work. So there >> must be something different there in Apache for Windows compared to >> Apache for Linux. > > Not in every other module that implements a handler, or even the one > you care about when compiled with VS -- seems like some kind of ABI or > tools problem not a problem with the module's src code. Say that again please. So where should I start looking for next? How do you recommend I should go about to debug this problem from the ABI point of view. Which tools do you mean? BTW: I can execute Ruby as a CGI-script without a problem with these simple VirtualHost settings (I tested it with test.rbx) NameVirtualHost *:80 ServerName de.oddb.win DocumentRoot C:\Ruby-1.8.6-oniguruma\lib\ruby\gems\1.8\gems\de.oddb-2.0.0\doc DirectoryIndex index.rbx #RubyAddPath 'C:/Ruby-1.8.6-oniguruma/lib/ruby/gems/1.8/gems/de.oddb-2.0.0/lib' #RubyRequire 'sbsm/trans_handler' #RubyTransHandler SBSM::ZoneTransHandler.instance Options ExecCGI AllowOverride None Order allow,deny Allow from all #RubyHandler Apache::RubyRun.instance #SetHandler ruby-object I put test.rbx into the above doc folder and it works fine. My index.rbx will not be executed because I need the SBSM Handler (internal tool). Also mod_ruby can handle a lot more RPS and is just much faster. So that is why I need mod_ruby. Best Zeno
Re: mod_ruby on Apache for Windows 2.2.17
> I really think it is the Content Handlers that do not work. So there > must be something different there in Apache for Windows compared to > Apache for Linux. Not in every other module that implements a handler, or even the one you care about when compiled with VS -- seems like some kind of ABI or tools problem not a problem with the module's src code. -- Eric Covener cove...@gmail.com
Re: mod_ruby on Apache for Windows 2.2.17
Dear Eric Thank you for your reply. On Fri, Feb 11, 2011 at 12:51 PM, Eric Covener wrote: > On Fri, Feb 11, 2011 at 2:25 AM, Zeno Davatz wrote: >> I am trying to debug mod_ruby to load in Apache for Windows. So far >> Apache for Windows does start with mod_ruby.so but it seems that httpd >> does not start correctly with mod_ruby enabled in Apache for Windows. >> >> The steps I took to compile mod_ruby for Apache for Windows 2.2.17 >> with MinGW are here: > > you should eliminate mingw from the equation if you're mostly > interested in the ruby side. The reason why I need MinGW is because Ruby was compiled with MinGW. I did compile mod_ruby with nmake on Windows. Works fine and Apache starts as well if I install Ruby via nmake as well. Not a problem. But I am dependent on the Oniguruma-patch and that patch can only be applied with MinGW at the moment. Also Ruby compiled with MinGW is faster then when compiled with nmake. Are you a Windows or a Linux User? I am asking because I think I am not that far away. I just need to understand the workings for Apache in Windows a bit better - as mod_ruby does compile with MinGW with the changes I pointed out. So if you can point me towards somewhere to debug mod_ruby for Apache on Windows so that I get my normal Server-Info as on Linux for: Request Phase Participation. I really think it is the Content Handlers that do not work. So there must be something different there in Apache for Windows compared to Apache for Linux. Best Zeno PS: The Ruby-Windows Installer is compiled with MinGW. And that is a great installer.
Re: mod_ruby on Apache for Windows 2.2.17
On Fri, Feb 11, 2011 at 2:25 AM, Zeno Davatz wrote: > Hi > > I am trying to debug mod_ruby to load in Apache for Windows. So far > Apache for Windows does start with mod_ruby.so but it seems that httpd > does not start correctly with mod_ruby enabled in Apache for Windows. > > The steps I took to compile mod_ruby for Apache for Windows 2.2.17 > with MinGW are here: you should eliminate mingw from the equation if you're mostly interested in the ruby side.
mod_ruby on Apache for Windows 2.2.17
Hi I am trying to debug mod_ruby to load in Apache for Windows. So far Apache for Windows does start with mod_ruby.so but it seems that httpd does not start correctly with mod_ruby enabled in Apache for Windows. The steps I took to compile mod_ruby for Apache for Windows 2.2.17 with MinGW are here: http://dev.ywesee.com/wiki.php/Apache/Libapr-1 The Apache Server-Info of my Windows Box is: Module Name: mod_ruby.c Content handlers: none Configuration Phase Participation: Create Directory Config, Merge Directory Configs, Create Server Config, Merge Server Configs Request Phase Participation: none The Apache-Server Info of my Linux-Box is: Module Name: mod_ruby.c Content handlers: yes Configuration Phase Participation: Create Directory Config, Merge Directory Configs, Create Server Config, Merge Server Configs Request Phase Participation: Post-Read Request, Translate Name, Check Access, Verify User ID, Verify User Access, Check Type, Fixups, Content Handlers, Logging So something clearly seems to be different between Windows and Linux. I am willing to pay to get this fixed. Best Zeno
