On Sunday, May 6, 2012, prad wrote: > i'm trying to understand a consistent error i'm getting while using a > racket program to get data from a website. > > i'm accessing the site to download certain posts using regexps and store > them in sqlite3. > > things go perfectly till i accumulate 336 records and then this error > crashes my script:
Hi prad, Are you doing the open-input-url in a loop, out of curiosity? If so, do you close the opened ports between each loop iteration? 336 is a very specific observation. Is it repeatable? tcp-connect: connection to www.30bananasaday.com, port 80 failed; host > not found (at step 1: Host name lookup failure; errno=2) > > so if it is a lookup failure that suggests the resolving server doesn't > like me after a certain number of lookups within a specific period of > time? is this reasoning correct? > This particular error seems to be blaming host name lookup. As far as I understand, the error's occuring even before you program can contact the remote server, if I understand the error message. Odd. If it were some kind of deliberate rate limiting, I'd expect a different class of error message.
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