No expert here, and this isn't tested. It seems you can set the
forbid.reuse option which will cause curl to shutdown the connection
after transfer is complete.
if(url.exists("http://www.omegahat.net/RCurl/index.html";)) {
curl <- getCurlHandle()
curlSetOpt(.opts=list(forbid.reuse=1),curl=curl)
getURL("http://www.omegahat.net/RCurl/index.html";, curl = curl)
}
On Tue, Jun 14, 2016 at 2:41 PM, J Payne <[email protected]> wrote:
> Does anyone know how to close an FTP session with RCurl? I am trying to
> automate the process of downloading snow data from a government website, and
> their server is throttling the connection after a few files are downloaded.
> I contacted their system administrator, who wrote: “My suspicion at this
> point is that the getURL commands are opened and perform the function asked,
> then linger in wait for 15 minutes until or ftp server closes the idle
> sessions. Is there a way to tell R to close the sessions?”
>
>
>
> I’ve perused the RCurl manual but I don’t see a way to close sessions. I
> tried copying the following example from the RCurl manual, but it didn’t
> solve the problem. I’m a novice at this and I don’t understand the
> relationship between handles and sessions, so I am probably missing something.
>
>
>
> #EXAMPLE from getCurl(), p. 39
>
> if(url.exists("http://www.omegahat.net/RCurl/index.html";)) {
>
> curl = getCurlHandle()
>
> getURL("http://www.omegahat.net/RCurl/index.html";, curl = curl)
>
> #getCurlInfo(curl) # I skipped this step
>
> rm(curl) # release the curl! (does this end the session???)
>
> }
>
>
>
> Thanks!
>
>
>
> John
>
>
> [[alternative HTML version deleted]]
>
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
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