Mikeal's request library wraps the sending of data around a process.nextTick(). Try that.
On Mon, Dec 23, 2013 at 12:02 PM, Jacob Beard <[email protected]> wrote: > Hi, > > I've noticed a strange behavior in node's http.request module. > > I'm using node's built-in http module to make an HTTP request inside an > express handler. I believe I'm using http.request fairly conventionally. > Here is a code snippet: > > app.post('/api/:userId/attachments/:examName/:attachmentName/render',function(req,res){ > > var htmlToSend = ''; > > req.on('data',function(s){ > htmlToSend += s; > }); > > req.on('end',function(){ > > var pdfGeneratorRequest = > http.request({ > host : PDF_GEN_HOST, > path : '/cgi-bin/render.cgi', > method : 'POST', > headers : { > 'content-length' : htmlToSend.length, > 'content-type' : 'text/html' > } > }, function(pdfGeneratorResponse) { > //handle the response > }) > > pdfGeneratorRequest.on('error',function(e){ > var m = 'Error making request to PDF generator server'; > console.log(m,e); > res.send(500,{error : m, message : e.message}); > }); > > pdfGeneratorRequest.end(htmlToSend); > }); > > > What I am finding, however, is that when the express server receives *six > or more* of these requests concurrently, nodejs mangles *one* of the HTTP > requests. > > Here is an example of what shows up in the Apache log of the server > receiving the request: > > 10.181.194.183 - - [23/Dec/2013:16:14:03 +0000] "POST /cgi-bin/render.cgi > HTTP/1.1" 200 99865 "-" "-" 10.181.194.183 - - [23/Dec/2013:16:14:16 > +0000] "POST /cgi-bin/render.cgi HTTP/1.1" 200 19742 "-" "-" > 10.181.194.183 - - [23/Dec/2013:16:14:16 +0000] "POST /cgi-bin/render.cgi > HTTP/1.1" 200 19741 "-" "-" > 10.181.194.183 - - [23/Dec/2013:16:14:15 +0000] "POST /cgi-bin/render.cgi > HTTP/1.1" 200 99865 "-" "-" > 10.181.194.183 - - [23/Dec/2013:16:14:15 +0000] "POST /cgi-bin/render.cgi > HTTP/1.1" 200 99867 "-" "-" > 10.181.194.183 - - [23/Dec/2013:16:14:17 +0000] "*ML>POST*/cgi-bin/render.cgi > HTTP/1.1" 400 25 "-" "-" > 10.181.194.183 - - [23/Dec/2013:16:14:16 +0000] "POST /cgi-bin/render.cgi > HTTP/1.1" 200 99867 "-" "-" > > Wireshark seems to confirm that the request HTTP method is getting mangled: > > > <https://lh4.googleusercontent.com/-Caoj66_ZfIw/UrhqKE0XvCI/AAAAAAAAAC4/WnQHUvn-GkY/s1600/Screen+Shot+2013-12-23+at+11.50.49+AM.png> > > This occurs on node 0.10.24 on OS X 10.8.5 > > I'd appreciate any guidance anyone can offer as to why this might be > occurring and how to resolve it. > > Thanks, > > Jake > > -- > -- > Job Board: http://jobs.nodejs.org/ > Posting guidelines: > https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines > You received this message because you are subscribed to the Google > Groups "nodejs" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/nodejs?hl=en?hl=en > > --- > You received this message because you are subscribed to the Google Groups > "nodejs" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. > -- -- Job Board: http://jobs.nodejs.org/ Posting guidelines: https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines You received this message because you are subscribed to the Google Groups "nodejs" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nodejs?hl=en?hl=en --- You received this message because you are subscribed to the Google Groups "nodejs" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
