private method `split' called for nil:NilClass

[mipearson]

Investigating this now, but chucking the issue up now just in case somebody else has seen this.

Guessing that one of the values in @readers is nil.

Procfile:

sphinx: searchd --console -c config/development.sphinx.conf
redis: redis-server
web: bundle exec unicorn -c config/unicorn.rb
job: bundle exec script/delayed_job

Trace:

private method `split' called for nil:NilClass 
/Users/mp/.rvm/gems/ree-1.8.7-2011.03/gems/foreman-0.30.1/lib/foreman/engine.rb:93:in `watch_for_output'
/Users/mp/.rvm/gems/ree-1.8.7-2011.03/gems/foreman-0.30.1/lib/foreman/engine.rb:92:in `each'
/Users/mp/.rvm/gems/ree-1.8.7-2011.03/gems/foreman-0.30.1/lib/foreman/engine.rb:92:in `watch_for_output'
/Users/mp/.rvm/gems/ree-1.8.7-2011.03/gems/foreman-0.30.1/lib/foreman/engine.rb:90:in `loop'
/Users/mp/.rvm/gems/ree-1.8.7-2011.03/gems/foreman-0.30.1/lib/foreman/engine.rb:90:in `watch_for_output'
/Users/mp/.rvm/gems/ree-1.8.7-2011.03/gems/foreman-0.30.1/lib/foreman/engine.rb:88:in `initialize'
/Users/mp/.rvm/gems/ree-1.8.7-2011.03/gems/foreman-0.30.1/lib/foreman/engine.rb:88:in `new'
/Users/mp/.rvm/gems/ree-1.8.7-2011.03/gems/foreman-0.30.1/lib/foreman/engine.rb:88:in `watch_for_output'
/Users/mp/.rvm/gems/ree-1.8.7-2011.03/gems/foreman-0.30.1/lib/foreman/engine.rb:44:in `start'
/Users/mp/.rvm/gems/ree-1.8.7-2011.03/gems/foreman-0.30.1/lib/foreman/cli.rb:19:in `start'
/Users/mp/.rvm/gems/ree-1.8.7-2011.03/gems/thor-0.14.6/lib/thor/task.rb:22:in `send'
/Users/mp/.rvm/gems/ree-1.8.7-2011.03/gems/thor-0.14.6/lib/thor/task.rb:22:in `run'
/Users/mp/.rvm/gems/ree-1.8.7-2011.03/gems/thor-0.14.6/lib/thor/invocation.rb:118:in `invoke_task'
/Users/mp/.rvm/gems/ree-1.8.7-2011.03/gems/thor-0.14.6/lib/thor.rb:263:in `dispatch'
/Users/mp/.rvm/gems/ree-1.8.7-2011.03/gems/thor-0.14.6/lib/thor/base.rb:389:in `start'
/Users/mp/.rvm/gems/ree-1.8.7-2011.03/gems/foreman-0.30.1/bin/foreman:7
/Users/mp/.rvm/gems/ree-1.8.7-2011.03/bin/foreman:19:in `load'
/Users/mp/.rvm/gems/ree-1.8.7-2011.03/bin/foreman:19
^CSIGINT received

[mipearson]

Everything in @readers looks fine. Chucking debugging in to check the response from IO::Select. Unfortunately, this issue is only happening to me about once an hour, so it's difficult to reproduce.

Didn't occur with Foreman 0.25. Only started occuring when bumping to latest version, but I bumped a lot of other gems at the same time.

[mipearson]

Right, it looks like IO.select is returning IO handles that don't actually have data waiting: the r.gets is returning nil.

If I'd been paying attention ...

Not sure what the correct response is here. Check the return from r.gets before parsing?