I''m trying to find a way to flush the output buffer. I have done this before in java and php but cannot find a method in ruby/rails? Is this possible? -m --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---
On 8/27/06, Miguel El Feo <senorcastro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> I''m trying to find a way to flush the output buffer. I have done this before > in java and php but cannot find a method in ruby/rails? Is this possible? >Rails doesn''t do streaming for regular requests, but it does provide an API for streaming responses. http://api.rubyonrails.org/classes/ActionController/Streaming.html http://datanoise.com/articles/2006/03/17/rails-and-response-streaming -- Kent --- http://www.datanoise.com --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---
Thanks for the input. I''ve tried send_data previously and it does not provide the function I need. I''ve also tried using $stdout.flush and it doesn''t seem to affect anything. Any other suggestions welcomed. -m On 8/27/06, Kent Sibilev <ksruby-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> > > On 8/27/06, Miguel El Feo <senorcastro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > I''m trying to find a way to flush the output buffer. I have done this > before > > in java and php but cannot find a method in ruby/rails? Is this > possible? > > > > Rails doesn''t do streaming for regular requests, but it does provide > an API for streaming responses. > > http://api.rubyonrails.org/classes/ActionController/Streaming.html > http://datanoise.com/articles/2006/03/17/rails-and-response-streaming > > > -- > Kent > --- > http://www.datanoise.com > > > >--~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---
Looking through the changelog I found this:
* render_text now accepts a block for deferred rendering. Useful for
streaming large files, displaying
a "please wait" message during a complex search, etc. Streaming
example:
render_text do |response|
File.open(path, ''rb'') do |file|
while buf = file.read(1024)
print buf
end
end
end
[Jeremy Kemper]
Yet when I try this it does not work. I wonder if this has been removed in
later releases?
-m
On 8/28/06, Miguel El Feo
<senorcastro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:>
> Thanks for the input. I''ve tried send_data previously and it does
not
> provide the function I need. I''ve also tried using $stdout.flush
and it
> doesn''t seem to affect anything. Any other suggestions welcomed.
>
> -m
>
>
> On 8/27/06, Kent Sibilev
<ksruby-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >
> >
> > On 8/27/06, Miguel El Feo
<senorcastro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > > I''m trying to find a way to flush the output buffer. I
have done this
> > before
> > > in java and php but cannot find a method in ruby/rails? Is this
> > possible?
> > >
> >
> > Rails doesn''t do streaming for regular requests, but it does
provide
> > an API for streaming responses.
> >
> > http://api.rubyonrails.org/classes/ActionController/Streaming.html
> > http://datanoise.com/articles/2006/03/17/rails-and-response-streaming
> >
> >
> > --
> > Kent
> > ---
> > http://www.datanoise.com
> >
> > > >
> >
>
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render :text => lambda { |response, out|
File.open(path, ''rb'') do |file|
while buf = file.read(1024)
out.print buf
end
end
}
On 8/28/06, Miguel El Feo
<senorcastro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> Looking through the changelog I found this:
>
> * render_text now accepts a block for deferred rendering. Useful for
> streaming large files, displaying
> a "please wait" message during a complex search, etc.
Streaming
> example:
>
> render_text do |response|
> File.open(path, ''rb'') do |file|
> while buf = file.read(1024)
> print buf
> end
> end
> end
>
> [Jeremy Kemper]
>
> Yet when I try this it does not work. I wonder if this has been removed in
> later releases?
>
> -m
>
>
> On 8/28/06, Miguel El Feo <
senorcastro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >
> > Thanks for the input. I''ve tried send_data previously and it
does not
> provide the function I need. I''ve also tried using $stdout.flush
and it
> doesn''t seem to affect anything. Any other suggestions welcomed.
> >
> >
> > -m
> >
> >
> >
> > On 8/27/06, Kent Sibilev
<ksruby-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > >
> > > On 8/27/06, Miguel El Feo
<senorcastro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > > > I''m trying to find a way to flush the output
buffer. I have done this
> before
> > > > in java and php but cannot find a method in ruby/rails? Is
this
> possible?
> > > >
> > >
> > > Rails doesn''t do streaming for regular requests, but it
does provide
> > > an API for streaming responses.
> > >
> > >
> http://api.rubyonrails.org/classes/ActionController/Streaming.html
>
> > >
> http://datanoise.com/articles/2006/03/17/rails-and-response-streaming
>
> > >
> > >
> > > --
> > > Kent
> > > ---
> > > http://www.datanoise.com
> > >
> > >
> >
> >
>
>
> >
>
--
Kent
---
http://www.datanoise.com
--~--~---------~--~----~------------~-------~--~----~
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Thanks Kent, but I''ve tried that and it doesn''t provide what I
want. If I do
:
render :text => lambda { |response, out|
out << "Sleeping"
sleep(10)
out << "Waking Up"
}
What I''m expecting here is to see "Sleeping" then after the
sleep duration,
"Waking Up". However it does not stream the response, it will process
the
whole block and then send the response. No different then how it normally
renders.
On 8/28/06, Kent Sibilev <ksruby-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:>
>
> render :text => lambda { |response, out|
> File.open(path, ''rb'') do |file|
> while buf = file.read(1024)
> out.print buf
> end
> end
> }
>
> On 8/28/06, Miguel El Feo
<senorcastro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > Looking through the changelog I found this:
> >
> > * render_text now accepts a block for deferred rendering. Useful for
> > streaming large files, displaying
> > a "please wait" message during a complex search, etc.
Streaming
> > example:
> >
> > render_text do |response|
> > File.open(path, ''rb'') do |file|
> > while buf = file.read(1024)
> > print buf
> > end
> > end
> > end
> >
> > [Jeremy Kemper]
> >
> > Yet when I try this it does not work. I wonder if this has been
removed
> in
> > later releases?
> >
> > -m
> >
> >
> > On 8/28/06, Miguel El Feo <
senorcastro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > >
> > > Thanks for the input. I''ve tried send_data previously
and it does not
> > provide the function I need. I''ve also tried using
$stdout.flush and it
> > doesn''t seem to affect anything. Any other suggestions
welcomed.
> > >
> > >
> > > -m
> > >
> > >
> > >
> > > On 8/27/06, Kent Sibilev
<ksruby-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > > >
> > > > On 8/27/06, Miguel El Feo
<senorcastro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > > > > I''m trying to find a way to flush the output
buffer. I have done
> this
> > before
> > > > > in java and php but cannot find a method in ruby/rails?
Is this
> > possible?
> > > > >
> > > >
> > > > Rails doesn''t do streaming for regular requests,
but it does provide
> > > > an API for streaming responses.
> > > >
> > > >
> > http://api.rubyonrails.org/classes/ActionController/Streaming.html
> >
> > > >
> > http://datanoise.com/articles/2006/03/17/rails-and-response-streaming
> >
> > > >
> > > >
> > > > --
> > > > Kent
> > > > ---
> > > > http://www.datanoise.com
> > > >
> > > >
> > >
> > >
> >
> >
> > >
> >
>
>
> --
> Kent
> ---
> http://www.datanoise.com
>
> >
>
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
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To post to this group, send email to
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-~----------~----~----~----~------~----~------~--~---
You should use out.flush method
class TestController < ApplicationController
def index
render :text => lambda { |resp, out|
out.puts ''start''
out.flush
10.times do
out.puts ''.''
out.flush
sleep 1
end
out.puts ''done''
}
end
end
Note it works only with fastcgi setup. It doesn''t work with webrick.
On 8/28/06, Miguel El Feo
<senorcastro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> Thanks Kent, but I''ve tried that and it doesn''t provide
what I want. If I do
> :
>
>
> render :text => lambda { |response, out|
> out << "Sleeping"
> sleep(10)
> out << "Waking Up"
> }
>
> What I''m expecting here is to see "Sleeping" then after
the sleep duration,
> "Waking Up". However it does not stream the response, it will
process the
> whole block and then send the response. No different then how it normally
> renders.
>
>
>
> On 8/28/06, Kent Sibilev
<ksruby-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >
> > render :text => lambda { |response, out|
> > File.open(path, ''rb'') do |file|
> > while buf = file.read(1024)
> > out.print buf
> > end
> > end
> > }
> >
> > On 8/28/06, Miguel El Feo <
senorcastro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > > Looking through the changelog I found this:
> > >
> > > * render_text now accepts a block for deferred rendering. Useful
for
> > > streaming large files, displaying
> > > a "please wait" message during a complex search,
etc. Streaming
> > > example:
> > >
> > > render_text do |response|
> > > File.open(path, ''rb'') do |file|
> > > while buf = file.read(1024)
> > > print buf
> > > end
> > > end
> > > end
> > >
> > > [Jeremy Kemper]
> > >
> > > Yet when I try this it does not work. I wonder if this has been
removed
> in
> > > later releases?
> > >
> > > -m
> > >
> > >
> > > On 8/28/06, Miguel El Feo <
senorcastro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > > >
> > > > Thanks for the input. I''ve tried send_data
previously and it does not
> > > provide the function I need. I''ve also tried using
$stdout.flush and it
> > > doesn''t seem to affect anything. Any other suggestions
welcomed.
> > > >
> > > >
> > > > -m
> > > >
> > > >
> > > >
> > > > On 8/27/06, Kent Sibilev <
ksruby-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > > > >
> > > > > On 8/27/06, Miguel El Feo
<senorcastro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > > > > > I''m trying to find a way to flush the
output buffer. I have done
> this
> > > before
> > > > > > in java and php but cannot find a method in
ruby/rails? Is this
> > > possible?
> > > > > >
> > > > >
> > > > > Rails doesn''t do streaming for regular
requests, but it does provide
> > > > > an API for streaming responses.
> > > > >
> > > > >
> > >
> http://api.rubyonrails.org/classes/ActionController/Streaming.html
>
> > >
> > > > >
> > >
> http://datanoise.com/articles/2006/03/17/rails-and-response-streaming
> > >
> > > > >
> > > > >
> > > > > --
> > > > > Kent
> > > > > ---
> > > > > http://www.datanoise.com
> > > > >
> > > > >
> > > >
> > > >
> > >
> > >
> > > >
> > >
> >
> >
> > --
> > Kent
> > ---
> > http://www.datanoise.com
> >
> >
> >
> >
>
>
> >
>
--
Kent
---
http://www.datanoise.com
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
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rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
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-~----------~----~----~----~------~----~------~--~---
I''ve tried of all this and I''m using lighttpd and still it does not flush the output buffer. I''ve tested this in production and development mode, I even tried mongrel just for kicks. Tested it on more then one machine with the help of a coworker here at work. I am not sure if maybe at work our configuration is somehow preventing this to function, but we are running a standard setup and I really don''t see how that can be. In the meantime I will have some of my other friends try this on their setups and see if they can get it to work. Any other suggestions would be truly appreciated. regards, m On 8/28/06, Kent Sibilev <ksruby-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> > > You should use out.flush method > > class TestController < ApplicationController > def index > render :text => lambda { |resp, out| > out.puts ''start'' > out.flush > 10.times do > out.puts ''.'' > out.flush > sleep 1 > end > out.puts ''done'' > } > end > end > > > Note it works only with fastcgi setup. It doesn''t work with webrick. > > On 8/28/06, Miguel El Feo <senorcastro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > Thanks Kent, but I''ve tried that and it doesn''t provide what I want. If > I do > > : > > > > > > render :text => lambda { |response, out| > > out << "Sleeping" > > sleep(10) > > out << "Waking Up" > > } > > > > What I''m expecting here is to see "Sleeping" then after the sleep > duration, > > "Waking Up". However it does not stream the response, it will process > the > > whole block and then send the response. No different then how it > normally > > renders. > > > > > > > > On 8/28/06, Kent Sibilev <ksruby-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > > > > > render :text => lambda { |response, out| > > > File.open(path, ''rb'') do |file| > > > while buf = file.read(1024) > > > out.print buf > > > end > > > end > > > } > > > > > > On 8/28/06, Miguel El Feo < senorcastro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > > > Looking through the changelog I found this: > > > > > > > > * render_text now accepts a block for deferred rendering. Useful for > > > > streaming large files, displaying > > > > a "please wait" message during a complex search, etc. Streaming > > > > example: > > > > > > > > render_text do |response| > > > > File.open(path, ''rb'') do |file| > > > > while buf = file.read(1024) > > > > print buf > > > > end > > > > end > > > > end > > > > > > > > [Jeremy Kemper] > > > > > > > > Yet when I try this it does not work. I wonder if this has been > removed > > in > > > > later releases? > > > > > > > > -m > > > > > > > > > > > > On 8/28/06, Miguel El Feo < senorcastro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > > > > > > > > > Thanks for the input. I''ve tried send_data previously and it does > not > > > > provide the function I need. I''ve also tried using $stdout.flush and > it > > > > doesn''t seem to affect anything. Any other suggestions welcomed. > > > > > > > > > > > > > > > -m > > > > > > > > > > > > > > > > > > > > On 8/27/06, Kent Sibilev < ksruby-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > > > > > > > > > > > On 8/27/06, Miguel El Feo <senorcastro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > > > > > > I''m trying to find a way to flush the output buffer. I have > done > > this > > > > before > > > > > > > in java and php but cannot find a method in ruby/rails? Is > this > > > > possible? > > > > > > > > > > > > > > > > > > > Rails doesn''t do streaming for regular requests, but it does > provide > > > > > > an API for streaming responses. > > > > > > > > > > > > > > > > > > http://api.rubyonrails.org/classes/ActionController/Streaming.html > > > > > > > > > > > > > > > > > > http://datanoise.com/articles/2006/03/17/rails-and-response-streaming > > > > > > > > > > > > > > > > > > > > > > -- > > > > > > Kent > > > > > > --- > > > > > > http://www.datanoise.com > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > Kent > > > --- > > > http://www.datanoise.com > > > > > > > > > > > > > > > > > > > > > > > > -- > Kent > --- > http://www.datanoise.com > > > >--~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---
If you are using a browser to test it, you won''t see the difference. Use curl for that. In my example, $ curl http://localhost:3000/test You will see the output printed after each flush method is being called. On 8/29/06, Miguel El Feo <senorcastro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> > I''ve tried of all this and I''m using lighttpd and still it does not flush > the output buffer. I''ve tested this in production and development mode, I > even tried mongrel just for kicks. Tested it on more then one machine with > the help of a coworker here at work. I am not sure if maybe at work our > configuration is somehow preventing this to function, but we are running a > standard setup and I really don''t see how that can be. In the meantime I > will have some of my other friends try this on their setups and see if they > can get it to work. Any other suggestions would be truly appreciated. > > regards, > m > > On 8/28/06, Kent Sibilev <ksruby-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > > > > > You should use out.flush method > > > > class TestController < ApplicationController > > def index > > render :text => lambda { |resp, out| > > out.puts ''start'' > > out.flush > > 10.times do > > out.puts ''.'' > > out.flush > > sleep 1 > > end > > out.puts ''done'' > > } > > end > > end > > > > > > Note it works only with fastcgi setup. It doesn''t work with webrick. > > > > On 8/28/06, Miguel El Feo < senorcastro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > > Thanks Kent, but I''ve tried that and it doesn''t provide what I want. > > If I do > > > : > > > > > > > > > render :text => lambda { |response, out| > > > out << "Sleeping" > > > sleep(10) > > > out << "Waking Up" > > > } > > > > > > What I''m expecting here is to see "Sleeping" then after the sleep > > duration, > > > "Waking Up". However it does not stream the response, it will process > > the > > > whole block and then send the response. No different then how it > > normally > > > renders. > > > > > > > > > > > > On 8/28/06, Kent Sibilev < ksruby-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > > > > > > > render :text => lambda { |response, out| > > > > File.open(path, ''rb'') do |file| > > > > while buf = file.read (1024) > > > > out.print buf > > > > end > > > > end > > > > } > > > > > > > > On 8/28/06, Miguel El Feo < senorcastro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org > wrote: > > > > > Looking through the changelog I found this: > > > > > > > > > > * render_text now accepts a block for deferred rendering. Useful > > for > > > > > streaming large files, displaying > > > > > a "please wait" message during a complex search, etc. Streaming > > > > > example: > > > > > > > > > > render_text do |response| > > > > > File.open (path, ''rb'') do |file| > > > > > while buf = file.read(1024) > > > > > print buf > > > > > end > > > > > end > > > > > end > > > > > > > > > > [Jeremy Kemper] > > > > > > > > > > Yet when I try this it does not work. I wonder if this has been > > removed > > > in > > > > > later releases? > > > > > > > > > > -m > > > > > > > > > > > > > > > On 8/28/06, Miguel El Feo < senorcastro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > > > > > > > > > > > Thanks for the input. I''ve tried send_data previously and it > > does not > > > > > provide the function I need. I''ve also tried using $stdout.flush > > and it > > > > > doesn''t seem to affect anything. Any other suggestions welcomed. > > > > > > > > > > > > > > > > > > -m > > > > > > > > > > > > > > > > > > > > > > > > On 8/27/06, Kent Sibilev < ksruby-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > > > > > > > > > > > > > On 8/27/06, Miguel El Feo <senorcastro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > > > > > > > I''m trying to find a way to flush the output buffer. I have > > done > > > this > > > > > before > > > > > > > > in java and php but cannot find a method in ruby/rails? Is > > this > > > > > possible? > > > > > > > > > > > > > > > > > > > > > > Rails doesn''t do streaming for regular requests, but it does > > provide > > > > > > > an API for streaming responses. > > > > > > > > > > > > > > > > > > > > > > http://api.rubyonrails.org/classes/ActionController/Streaming.html > > > > > > > > > > > > > > > > > > > > > > > http://datanoise.com/articles/2006/03/17/rails-and-response-streaming > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > > > Kent > > > > > > > --- > > > > > > > http://www.datanoise.com > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > Kent > > > > --- > > > > http://www.datanoise.com > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > Kent > > --- > > http://www.datanoise.com > > > > > > > > > >-- Kent --- http://www.datanoise.com --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---
I''ve been using mozilla and lynx to test and now I''ve just used curl and the same thing happens. It''s not streaming the output. I am wondering if its something within my setup thats preventing me from getting this to work. My co-worker has tried the same code on his development system and it doesn''t work for him either. I am wondering if I can replicate your rails/server setup if I could get it to work. -m On 8/29/06, Kent Sibilev <ksruby-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> > If you are using a browser to test it, you won''t see the difference. Use > curl for that. In my example, > > $ curl http://localhost:3000/test > > You will see the output printed after each flush method is being called. > > > > On 8/29/06, Miguel El Feo <senorcastro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > > > I''ve tried of all this and I''m using lighttpd and still it does not > > flush the output buffer. I''ve tested this in production and development > > mode, I even tried mongrel just for kicks. Tested it on more then one > > machine with the help of a coworker here at work. I am not sure if maybe at > > work our configuration is somehow preventing this to function, but we are > > running a standard setup and I really don''t see how that can be. In the > > meantime I will have some of my other friends try this on their setups and > > see if they can get it to work. Any other suggestions would be truly > > appreciated. > > > > regards, > > m > > > > On 8/28/06, Kent Sibilev < ksruby-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > > > > > > > > You should use out.flush method > > > > > > class TestController < ApplicationController > > > def index > > > render :text => lambda { |resp, out| > > > out.puts ''start'' > > > out.flush > > > 10.times do > > > out.puts ''.'' > > > out.flush > > > sleep 1 > > > end > > > out.puts ''done'' > > > } > > > end > > > end > > > > > > > > > Note it works only with fastcgi setup. It doesn''t work with webrick. > > > > > > On 8/28/06, Miguel El Feo < senorcastro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > > > Thanks Kent, but I''ve tried that and it doesn''t provide what I want. > > > If I do > > > > : > > > > > > > > > > > > render :text => lambda { |response, out| > > > > out << "Sleeping" > > > > sleep(10) > > > > out << "Waking Up" > > > > } > > > > > > > > What I''m expecting here is to see "Sleeping" then after the sleep > > > duration, > > > > "Waking Up". However it does not stream the response, it will > > > process the > > > > whole block and then send the response. No different then how it > > > normally > > > > renders. > > > > > > > > > > > > > > > > On 8/28/06, Kent Sibilev < ksruby-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > > > > > > > > > render :text => lambda { |response, out| > > > > > File.open(path, ''rb'') do |file| > > > > > while buf = file.read (1024) > > > > > out.print buf > > > > > end > > > > > end > > > > > } > > > > > > > > > > On 8/28/06, Miguel El Feo < senorcastro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org > wrote: > > > > > > Looking through the changelog I found this: > > > > > > > > > > > > * render_text now accepts a block for deferred rendering. Useful > > > for > > > > > > streaming large files, displaying > > > > > > a "please wait" message during a complex search, etc. > > > Streaming > > > > > > example: > > > > > > > > > > > > render_text do |response| > > > > > > File.open (path, ''rb'') do |file| > > > > > > while buf = file.read(1024) > > > > > > print buf > > > > > > end > > > > > > end > > > > > > end > > > > > > > > > > > > [Jeremy Kemper] > > > > > > > > > > > > Yet when I try this it does not work. I wonder if this has been > > > removed > > > > in > > > > > > later releases? > > > > > > > > > > > > -m > > > > > > > > > > > > > > > > > > On 8/28/06, Miguel El Feo < senorcastro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org > wrote: > > > > > > > > > > > > > > Thanks for the input. I''ve tried send_data previously and it > > > does not > > > > > > provide the function I need. I''ve also tried using $stdout.flush > > > and it > > > > > > doesn''t seem to affect anything. Any other suggestions welcomed. > > > > > > > > > > > > > > > > > > > > > -m > > > > > > > > > > > > > > > > > > > > > > > > > > > > On 8/27/06, Kent Sibilev < ksruby-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > > > > > > > > > > > > > > > On 8/27/06, Miguel El Feo <senorcastro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > > > > > > > > I''m trying to find a way to flush the output buffer. I > > > have done > > > > this > > > > > > before > > > > > > > > > in java and php but cannot find a method in ruby/rails? Is > > > this > > > > > > possible? > > > > > > > > > > > > > > > > > > > > > > > > > Rails doesn''t do streaming for regular requests, but it does > > > provide > > > > > > > > an API for streaming responses. > > > > > > > > > > > > > > > > > > > > > > > > > > http://api.rubyonrails.org/classes/ActionController/Streaming.html > > > > > > > > > > > > > > > > > > > > > > > > > > > > http://datanoise.com/articles/2006/03/17/rails-and-response-streaming > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > > > > Kent > > > > > > > > --- > > > > > > > > http://www.datanoise.com > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > Kent > > > > > --- > > > > > http://www.datanoise.com > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > Kent > > > --- > > > http://www.datanoise.com > > > > > > > > > > > > > > > -- > Kent > --- > http://www.datanoise.com > > >--~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---
The saga continues - I refuse to give up. I''ve determined that its not a server issue at this point, I''ve used lighttpd, apache with fcgid, mongrel and no luck still. Me and a coworker are working on a workaround for this since output streaming seems like a pipe dream at this point. In the meantime it would be nice to get the specs of a system setup that is known to work with streaming so I can implement it and see if I have better results. In the meanwhile I have a $20 prize over at Guruza http://guruza.com/question/358/reward-20.00 to anyone who can help answer this question. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---
On 8/31/06, Miguel El Feo <senorcastro-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> The saga continues - I refuse to give up. I''ve determined that its not a > server issue at this point, I''ve used lighttpd, apache with fcgid, mongrel > and no luck still. Me and a coworker are working on a workaround for this > since output streaming seems like a pipe dream at this point. In the > meantime it would be nice to get the specs of a system setup that is known > to work with streaming so I can implement it and see if I have better > results. In the meanwhile I have a $20 prize over at Guruza > http://guruza.com/question/358/reward-20.00 > to anyone who can help answer this question. >Miguel, I''m using lighttpd with fastcgi and it streams just fine. With my example if I use curl to query my action URL, I can see the output after each our.flush invocation. -- Kent --- http://www.datanoise.com --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---
On Thu, 2006-08-31 at 11:31 -0400, Miguel El Feo wrote:> The saga continues - I refuse to give up. I''ve determined that its not > a server issue at this point, I''ve used lighttpd, apache with fcgid, > mongrel and no luck still. Me and a coworker are working on a > workaround for this since output streaming seems like a pipe dream at > this point. In the meantime it would be nice to get the specs of a > system setup that is known to work with streaming so I can implement > it and see if I have better results. In the meanwhile I have a $20 > prize over at Guruza http://guruza.com/question/358/reward-20.00 to > anyone who can help answer this question.Oh, I missed this, sorry but you can''t stream from rails in Mongrel at the least, probably in none of them. Mostly because Rails does some buffering and Mongrel does some buffering and Rails likes to change its mind mid-stream. If there''s a particular action that needs streaming and you can break it out of rails then it is possible to write Mongrel handler that streams fairly quickly. In fact Mongrel does this when sending a file. Another option, is if you can pack up what Rails is supposed to send in a streaming fashion, then you can write a simple Mongrel handler that does the heavy lifting of streaming it out to the user. Otherwise, having Rails do the actual streaming will stop the other clients since while Rails is streaming you''ll be locked. Go ahead and give the $20 to a charity. :-) -- Zed A. Shaw http://www.zedshaw.com/ http://mongrel.rubyforge.org/ http://www.lingr.com/room/3yXhqKbfPy8 -- Come get help. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---
On 8/31/06, Zed Shaw <zedshaw-dd7LMGGEL7NBDgjK7y7TUQ@public.gmane.org> wrote:> > On Thu, 2006-08-31 at 11:31 -0400, Miguel El Feo wrote: > > The saga continues - I refuse to give up. I''ve determined that its not > > a server issue at this point, I''ve used lighttpd, apache with fcgid, > > mongrel and no luck still. Me and a coworker are working on a > > workaround for this since output streaming seems like a pipe dream at > > this point. In the meantime it would be nice to get the specs of a > > system setup that is known to work with streaming so I can implement > > it and see if I have better results. In the meanwhile I have a $20 > > prize over at Guruza http://guruza.com/question/358/reward-20.00 to > > anyone who can help answer this question. > > Oh, I missed this, sorry but you can''t stream from rails in Mongrel at > the least, probably in none of them. Mostly because Rails does some > buffering and Mongrel does some buffering and Rails likes to change its > mind mid-stream.Rails calls output.write on the IO the dispatcher hands it; Mongrel hands Rails a StringIO. The only exception I recall is that send_file used to call output.syswrite, if available, to bypass Ruby buffered IO. jeremy --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---
On 8/31/06, Jeremy Kemper <jeremy-w7CzD/W5Ocjk1uMJSBkQmQ@public.gmane.org> wrote:> Rails calls output.write on the IO the dispatcher hands it; Mongrel hands > Rails a StringIO. The only exception I recall is that send_file used to call > output.syswrite, if available, to bypass Ruby buffered IO. > > jeremy >No, send_file uses output.write method. If Rails is deployed in the fastcgi environment, your output object is FCGI::Stream which doesn''t provide sysread/syswrite methods. All buffering in this case is provided by fastcgi library and ''flush'' method is supported. -- Kent --- http://www.datanoise.com --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---