Hi, We have added one more line to our code to reduce the connection established.
curl_easy_setopt(ptCurlHandle, CURLOPT_COOKIE, pstrSessionCookie) After adding the CURLOPT_COOKIE, the connection issue was solved but data fetched is zero bytes Please let me know what may be causing this issue. Regards, SAM > ------------------------------ > > Message: 3 > Date: Thu, 14 Jun 2012 10:33:08 +0200 (CEST) > From: Daniel Stenberg <dan...@haxx.se> > To: libcurl development <curl-library@cool.haxx.se> > Subject: Re: Fetching More than 500 files from Server > Message-ID: <alpine.deb.2.00.1206141023270.19...@tvnag.unkk.fr> > Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed > > On Thu, 14 Jun 2012, Swamy Mudhbasalar wrote: > > Please stop top-posting and full-quoting. If you intend to reply to emails > here, switch off the digest-mode! > >> LibCurl Version : 7.21.0 > > We have made 13 releases since that, so it's not unthinkable that a newer > version works better or at least different. It would be very interesting to > > learn if you see anything similar with a recent version. > >> curl_easy_setopt(ptCurlHandle, CURLOPT_ERRORBUFFER, acErrorBuffer); >> curl_easy_setopt(ptCurlHandle, CURLOPT_URL, pstrURL); >> curl_easy_setopt(ptCurlHandle, CURLOPT_WRITEFUNCTION, VmwGetCB); >> curl_easy_setopt(ptCurlHandle, CURLOPT_WRITEDATA, (void *)&tContext); >> curl_easy_setopt(ptCurlHandle, CURLOPT_USERAGENT, pstrUserAgent); >> curl_easy_setopt(ptCurlHandle, CURLOPT_SSL_VERIFYPEER, 0L); >> curl_easy_setopt(ptCurlHandle, CURLOPT_SSL_VERIFYHOST, 0L); >> curl_easy_setopt(ptCurlHandle, CURLOPT_USERPWD, pstrUserPass); > > If these are truly the only options you use then the connection: header in > the > request is truly a mystery to me... > > You could consider using CURLOPT_VERBOSE to get to see about libcurl's > choices > to keep connections open or close them etc. > >>> In which sense is this connection then still "alive" ? How do you see it >>> >>> being kept in 30 minutes? >> >> When I run the netstat command from the command prompt, i can see many >> connection established. For every file there is one connection >> established. > > Even ESTABLISHED! That sounds so completely broken. When libcurl concludes > that a connection can't be kept for further re-use it will _close_ that > socket. If it doesn't conclude that, it will keep the connection in its > connection pool (and possibly close an older one to make room) but that pool > > will only fit a finite number of connections and that will be much less than > > 500 by default... > >> All this connection will get closed after some time approximately 30 >> mins. > > So who or what is closing them after 30 minutes? > > -- > > / daniel.haxx.se > > ------------------------------------------------------------------- List admin: http://cool.haxx.se/list/listinfo/curl-library Etiquette: http://curl.haxx.se/mail/etiquette.html
