EOFError end of file reached issue with Net HTTP

Question

I am using ruby-1 8 7-p302 Rails 2 3 11  I am trying to use FQL  Facebook API  to get stats for a link  Here s my code   def stats fb post url    url   BASE URI     query   URI encode  select like count from link stat where url     fb post url          parsed url   URI parse url    http   Net  HTTP new parsed url host  parsed url port    request   Net  HTTP  Get new parsed url request uri     response   http request request    response inspect end   And here s the error   EOFError  end of file reached from  home rahul  rvm rubies ruby-1 8 7-p302 lib ruby 1 8 net protocol rb 135 in  sysread  from  home rahul  rvm rubies ruby-1 8 7-p302 lib ruby 1 8 net protocol rb 135 in  rbuf fill  from  home rahul  rvm rubies ruby-1 8 7-p302 lib ruby 1 8 timeout rb 67 in  timeout  from  home rahul  rvm rubies ruby-1 8 7-p302 lib ruby 1 8 timeout rb 101 in  timeout  from  home rahul  rvm rubies ruby-1 8 7-p302 lib ruby 1 8 net protocol rb 134 in  rbuf fill  from  home rahul  rvm rubies ruby-1 8 7-p302 lib ruby 1 8 net protocol rb 116 in  readuntil  from  home rahul  rvm rubies ruby-1 8 7-p302 lib ruby 1 8 net protocol rb 126 in  readline  from  home rahul  rvm rubies ruby-1 8 7-p302 lib ruby 1 8 net http rb 2028 in  read status line  from  home rahul  rvm rubies ruby-1 8 7-p302 lib ruby 1 8 net http rb 2017 in  read new  from  home rahul  rvm rubies ruby-1 8 7-p302 lib ruby 1 8 net http rb 1051 in  request  from  home rahul  rvm rubies ruby-1 8 7-p302 lib ruby 1 8 net http rb 1037 in  request  from  home rahul  rvm rubies ruby-1 8 7-p302 lib ruby 1 8 net http rb 543 in  start  from  home rahul  rvm rubies ruby-1 8 7-p302 lib ruby 1 8 net http rb 1035 in  request  from  home rahul Work Radr lib fb stats rb 13 in  stats  from  irb  10   This seems to be happening only in case of the Facebook API  Also  I saw it suggested in some post this could be a bug in Net  HTTP

User · Answer

After doing some research  this was happening in Ruby s XMLRPC  Client library - which uses NET  HTTP  The client uses the start   method in NET  HTTP which keeps the connection open for future requests   This happened precisely at 30 seconds after the last requests - so my assumption here is that the server it s hitting is closing requests after that time  I m not sure what the default is for NET  HTTP to keep the request open - but I m about to test with 60 seconds to see if that solves the issue

User · Answer

I had the same problem  ruby-1 8 7-p357  and tried loads of things in vain     I finally realised that it happens only on multiple calls using the same XMLRPC  Client instance   So now I m re-instantiating my client at each call and it just works

User · Answer

I find that I run into Net  HTTP and Net  FTP problems like this periodically  and when I do  surrounding the call with a timeout   makes all of those issues vanish  So where this will occasionally hang for 3 minutes or so and then raise an EOFError   res   Net  HTTP post form uri  args    This always fixes it for me   res   timeout 120    Net  HTTP post form uri  args

User · Answer

If the URL is using https instead of http  you need to add the following line   parsed url   URI parse url  http   Net  HTTP new parsed url host  parsed url port  http use ssl   true   Note the additional http use ssl   true   And the more appropriate code which would handle both http and https will be similar to the following one   url   URI parse domain  req   Net  HTTP  Post new url request uri  req set form data   name   gt  Sur Max    email   gt  some email com    http   Net  HTTP new url host  url port  http use ssl    url scheme     https   response   http request req    See more in my blog  EOFError  end of file reached issue when post a form with Net  HTTP

User · Answer

In Ruby on Rails I used this code  and it works perfectly   req profilepic   ActiveSupport  JSON decode open URI encode  https   graph facebook com me  fields picture amp type large amp access token   fb access token       profilepic url   req profilepic  picture

User · Answer

I had a similar problem with a request to a non-SSL service   This blog suggested vaguely to try URI encoding the URL that is passed to  get   http   www loudthinking org 2010 02 ruby-eoferror-end-of-file-reached html  I took a shot at it  based on desperation  and in my limiting testing this seems to have fixed it for me  My new code is    http   Net  HTTP new  domain com      http    http start     url    http   domain com requested url blah blah amp etc 1  req   Net  HTTP  Get new URI encode url   req basic auth USERNAME  API KEY res    http request req     Note that I use  http start as I want to maintain the HTTP session over multiple requests  Other than that  you might like to try the most relevant part which is  URI encode url  inside the get call

User · Answer

I ran into this recently and eventually found that this was caused by a network timeout from the endpoint we were hitting   Fortunately for us we were able to increase the timeout duration     To verify this was our issue  and actually not an issue with net http   I made the same request with curl and confirmed that the request was being terminated

[ruby-on-rails] EOFError: end of file reached issue with Net::HTTP

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