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I am trying to use the derailed_benchmark gem to track down a memory leak in a rails app.
When I run the test
USE_SERVER=puma bundle exec derailed exec perf:mem_over_time
the test runs until the memory usage starts to level off, then then the test throws an error:
RuntimeError: Bad request to "curl 'http://localhost:3000/' -s --fail 2>&1" Response:
How do I fix this?
The output is as follows:
perf:mem_over_time
Booting: production
Endpoint: "/"
/Users/Chris/.rvm/gems/ruby-2.2.1@golf_mentor221/gems/derailed_benchmarks-1.3.1/lib/derailed_benchmarks/tasks.rb:72: warning: already initialized constant DERAILED_APP
/Users/Chris/.rvm/gems/ruby-2.2.1@golf_mentor221/gems/derailed_benchmarks-1.3.1/lib/derailed_benchmarks/tasks.rb:23: warning: previous definition of DERAILED_APP was here
Port: 3000
Server: "puma"
Puma 2.16.0 starting...
* Min threads: 0, max threads: 16
* Environment: none
* Listening on tcp://0.0.0.0:3000
PID: 17093
125.01171875
128.15234375
132.0546875
133.5078125
133.68359375
133.8828125
bundler: failed to load command: derailed (/Users/Chris/.rvm/gems/ruby-2.2.1@golf_mentor221/bin/derailed)
RuntimeError: Bad request to "curl 'http://localhost:3000/' -s --fail 2>&1" Response:
""
/Users/Chris/.rvm/gems/ruby-2.2.1@golf_mentor221/gems/derailed_benchmarks-1.3.1/lib/derailed_benchmarks/tasks.rb:85:in `call_app'
/Users/Chris/.rvm/gems/ruby-2.2.1@golf_mentor221/gems/derailed_benchmarks-1.3.1/lib/derailed_benchmarks/tasks.rb:174:in `block (3 levels) in <top (required)>'
/Users/Chris/.rvm/gems/ruby-2.2.1@golf_mentor221/gems/derailed_benchmarks-1.3.1/lib/derailed_benchmarks/tasks.rb:173:in `times'
/Users/Chris/.rvm/gems/ruby-2.2.1@golf_mentor221/gems/derailed_benchmarks-1.3.1/lib/derailed_benchmarks/tasks.rb:173:in `block (2 levels) in <top (required)>'
/Users/Chris/.rvm/gems/ruby-2.2.1@golf_mentor221/gems/rake-10.5.0/lib/rake/task.rb:240:in `call'
/Users/Chris/.rvm/gems/ruby-2.2.1@golf_mentor221/gems/rake-10.5.0/lib/rake/task.rb:240:in `block in execute'
/Users/Chris/.rvm/gems/ruby-2.2.1@golf_mentor221/gems/rake-10.5.0/lib/rake/task.rb:235:in `each'
/Users/Chris/.rvm/gems/ruby-2.2.1@golf_mentor221/gems/rake-10.5.0/lib/rake/task.rb:235:in `execute'
/Users/Chris/.rvm/gems/ruby-2.2.1@golf_mentor221/gems/rake-10.5.0/lib/rake/task.rb:179:in `block in invoke_with_call_chain'
/Users/Chris/.rvm/rubies/ruby-2.2.1/lib/ruby/2.2.0/monitor.rb:211:in `mon_synchronize'
/Users/Chris/.rvm/gems/ruby-2.2.1@golf_mentor221/gems/rake-10.5.0/lib/rake/task.rb:172:in `invoke_with_call_chain'
/Users/Chris/.rvm/gems/ruby-2.2.1@golf_mentor221/gems/rake-10.5.0/lib/rake/task.rb:165:in `invoke'
/Users/Chris/.rvm/gems/ruby-2.2.1@golf_mentor221/gems/derailed_benchmarks-1.3.1/bin/derailed:41:in `exec'
/Users/Chris/.rvm/gems/ruby-2.2.1@golf_mentor221/gems/thor-0.19.1/lib/thor/command.rb:27:in `run'
/Users/Chris/.rvm/gems/ruby-2.2.1@golf_mentor221/gems/thor-0.19.1/lib/thor/invocation.rb:126:in `invoke_command'
/Users/Chris/.rvm/gems/ruby-2.2.1@golf_mentor221/gems/thor-0.19.1/lib/thor.rb:359:in `dispatch'
/Users/Chris/.rvm/gems/ruby-2.2.1@golf_mentor221/gems/thor-0.19.1/lib/thor/base.rb:440:in `start'
/Users/Chris/.rvm/gems/ruby-2.2.1@golf_mentor221/gems/derailed_benchmarks-1.3.1/bin/derailed:92:in `<top (required)>'
/Users/Chris/.rvm/gems/ruby-2.2.1@golf_mentor221/bin/derailed:23:in `load'
/Users/Chris/.rvm/gems/ruby-2.2.1@golf_mentor221/bin/derailed:23:in `<top (required)>'
896
With help from the derailed_benchmark team, I found that it was because I was using the rack-attack gem to throttle requests.
91
I had a similar issue
derailed_benchmarks-1.3.4/lib/derailed_benchmarks/tasks.rb:106:in `call_app': Bad request: <html><body>You are being <a href="https://example.org/api/v0/valid">redirected</a>.</body></html> (RuntimeError)
Mine was caused by a production only configuration to enforce SSL either:
config.force_ssl=true
or
config.middleware.insert_before ActionDispatch::Static, Rack::SslEnforcer, only_environments: ['production', 'staging']
I commented these out to get past that issue
42
In my case, it is because I needed to tell derailed to use puma as the server.
USE_SERVER=puma bundle exec derailed exec perf:mem_over_time
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