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WEBrick randomly fails with "can't add a new key into hash during iteration" #2844

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jmiettinen opened this issue Apr 17, 2015 · 1 comment
Open

WEBrick randomly fails with "can't add a new key into hash during iteration" #2844

jmiettinen opened this issue Apr 17, 2015 · 1 comment

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@jmiettinen
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When running different pieces of software (Rails, Jasmine, etc) with JRuby and WEBrick, I get from time to time the following error:

[2015-04-16 23:40:36] ERROR RuntimeError: can't add a new key into hash during iteration
   org/jruby/RubyHash.java:986:in `[]='
   /home/foo/.rbenv/versions/jruby-1.7.12/lib/ruby/1.9/webrick/utils.rb:205:in `register'
   /home/foo/.rbenv/versions/jruby-1.7.12/lib/ruby/1.9/webrick/utils.rb:161:in `register'
   org/jruby/ext/thread/Mutex.java:149:in `synchronize'
   /home/foo/.rbenv/versions/jruby-1.7.12/lib/ruby/1.9/webrick/utils.rb:160:in `register'
   /home/foo/.rbenv/versions/jruby-1.7.12/lib/ruby/1.9/webrick/utils.rb:232:in `timeout'
   /home/foo/.rbenv/versions/jruby-1.7.12/lib/ruby/1.9/webrick/httprequest.rb:398:in `_read_data'
   /home/foo/.rbenv/versions/jruby-1.7.12/lib/ruby/1.9/webrick/httprequest.rb:409:in `read_line'
   /home/foo/.rbenv/versions/jruby-1.7.12/lib/ruby/1.9/webrick/httprequest.rb:316:in `read_header'
   /home/foo/.rbenv/versions/jruby-1.7.12/lib/ruby/1.9/webrick/httprequest.rb:92:in `parse'
   /home/foo/.rbenv/versions/jruby-1.7.12/lib/ruby/1.9/webrick/httpserver.rb:81:in `run'
   /home/foo/.rbenv/versions/jruby-1.7.12/lib/ruby/1.9/webrick/server.rb:191:in `start_thread'

This happens in JRuby 1.7.12 (also seen on earlier versions).
I guess this is more-or-less this issue and that doesn't seem to be fixed at least in master.
@p4ali
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p4ali commented Oct 28, 2015

Got the smilar error randomly on 1.7.19 version:

[2015-10-28 14:19:52] ERROR RuntimeError: can't add a new key into hash during iteration
    org/jruby/RubyHash.java:991:in `[]='
    /usr/local/rvm/rubies/jruby-1.7.19/lib/ruby/1.9/webrick/utils.rb:205:in `register'
    /usr/local/rvm/rubies/jruby-1.7.19/lib/ruby/1.9/webrick/utils.rb:161:in `register'
    org/jruby/ext/thread/Mutex.java:149:in `synchronize'
    /usr/local/rvm/rubies/jruby-1.7.19/lib/ruby/1.9/webrick/utils.rb:160:in `register'
    /usr/local/rvm/rubies/jruby-1.7.19/lib/ruby/1.9/webrick/utils.rb:232:in `timeout'
    /usr/local/rvm/rubies/jruby-1.7.19/lib/ruby/1.9/webrick/httprequest.rb:399:in `_read_data'
    /usr/local/rvm/rubies/jruby-1.7.19/lib/ruby/1.9/webrick/httprequest.rb:414:in `read_data'
    /usr/local/rvm/rubies/jruby-1.7.19/lib/ruby/1.9/webrick/httprequest.rb:357:in `read_body'
    /usr/local/rvm/rubies/jruby-1.7.19/lib/ruby/1.9/webrick/httprequest.rb:140:in `body'
    /usr/local/rvm/gems/jruby-1.7.19/gems/rack-1.5.2/lib/rack/handler/webrick.rb:38:in `service'
    /usr/local/rvm/rubies/jruby-1.7.19/lib/ruby/1.9/webrick/httpserver.rb:138:in `service'
    /usr/local/rvm/rubies/jruby-1.7.19/lib/ruby/1.9/webrick/httpserver.rb:94:in `run'
    /usr/local/rvm/rubies/jruby-1.7.19/lib/ruby/1.9/webrick/server.rb:191:in `start_thread'

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@jmiettinen @p4ali