# DRbServerNotFound on TupleSpace#take but not read

**URL:** <https://www.ruby-forum.com/t/drbservernotfound-on-tuplespace-take-but-not-read/88918>\
**Category:** Ruby\
**Created:** [March 15, 2007, 4:20pm UTC](https://www.ruby-forum.com/t/drbservernotfound-on-tuplespace-take-but-not-read/88918 "2007-03-15T16:20:41Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![brenton\_leanhardt](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/7ba0ec/32.png) [@brenton\_leanhardt](https://www.ruby-forum.com/u/brenton_leanhardt)\
**Post date:** [March 15, 2007, 4:20pm UTC](https://www.ruby-forum.com/t/drbservernotfound-on-tuplespace-take-but-not-read/88918/1 "2007-03-15T16:20:41Z")

</div>

I’m getting a DRbServerNotFound exception on TupleSpace#take but not  
TupleSpace#read. I’m running ruby 1.8.5 on fedora core 6.

Here’s a little snippet:

@http\_server.mount\_proc(’/delete’) do |req, res|  
id = req.path\_info.reverse.chop.reverse  
@seldom\_space.read([‘pending’, nil, id, nil], 2)  
@seldom\_space.take([‘pending’, nil, id, nil], 2)  
res.body = get\_status  
end

Basically @seldom\_space is a TupleSpaceProxy that I’m accessing from  
within  
a Webrick proc servlet. The read will work as expected and return a  
‘pending’ tuple with the specified id. The take is throwing the  
following  
exception:

[2007-03-15 11:06:13] ERROR DRb::DRbServerNotFound:  
DRb::DRbServerNotFound  
/usr/local/lib/ruby/1.8/drb/drb.rb:1650:in `current_server' /usr/local/lib/ruby/1.8/drb/drb.rb:1712:in`to\_id’  
/usr/local/lib/ruby/1.8/drb/drb.rb:1048:in `initialize' /usr/local/lib/ruby/1.8/rinda/rinda.rb:229:in`new’  
/usr/local/lib/ruby/1.8/rinda/rinda.rb:229:in `take' ./bin/../lib/seldom.rb:134:in`run’  
/usr/local/lib/ruby/1.8/webrick/httpservlet/prochandler.rb:26:in  
`call' /usr/local/lib/ruby/1.8/webrick/httpservlet/prochandler.rb:26:in`do\_GET’  
/usr/local/lib/ruby/1.8/webrick/httpservlet/abstract.rb:35:in  
` __send__' /usr/local/lib/ruby/1.8/webrick/httpservlet/abstract.rb:35:in`service’  
/usr/local/lib/ruby/1.8/webrick/httpserver.rb:104:in `service' /usr/local/lib/ruby/1.8/webrick/httpserver.rb:65:in`run’  
/usr/local/lib/ruby/1.8/webrick/server.rb:173:in `start_thread' /usr/local/lib/ruby/1.8/webrick/server.rb:162:in`start’  
/usr/local/lib/ruby/1.8/webrick/server.rb:162:in `start_thread' /usr/local/lib/ruby/1.8/webrick/server.rb:95:in`start’  
/usr/local/lib/ruby/1.8/webrick/server.rb:92:in `each' /usr/local/lib/ruby/1.8/webrick/server.rb:92:in`start’  
/usr/local/lib/ruby/1.8/webrick/server.rb:23:in `start' /usr/local/lib/ruby/1.8/webrick/server.rb:82:in`start’  
./bin/…/lib/seldom.rb:138:in `run’  
bin/seldom:31

Anyone have an idea what’s going on? I’ve been stepping through DRb  
with  
ruby-debug for hours and I’m not able to wrap my mind around what’s  
happening (though I have learned a lot about more about DRb).

–Brenton