Parallel run of tests gets error EADDRINUSE

[ochodek]

Expected behaviour

Parallel run will execute tests as expected

Actual behaviour

Parallel run results in the following error

ERROR [karma]: { Error: listen EADDRINUSE 0.0.0.0:1111
    at Object._errnoException (util.js:1019:11)
    at _exceptionWithHostPort (util.js:1041:20)
    at Server.setupListenHandle [as _listen2] (net.js:1344:14)
    at listenInCluster (net.js:1385:12)
    at doListen (net.js:1494:7)
    at _combinedTickCallback (internal/process/next_tick.js:141:11)
    at process._tickCallback (internal/process/next_tick.js:180:9)

  code: 'EADDRINUSE',
  errno: 'EADDRINUSE',
  syscall: 'listen',
  address: '0.0.0.0',
  port: 1111 }
{ Error: Command failed: /node_modules/.bin/karma start /test/karma.conf.js

    at ChildProcess.exithandler (child_process.js:271:12)
    at emitTwo (events.js:125:13)
    at ChildProcess.emit (events.js:213:7)
    at maybeClose (internal/child_process.js:927:16)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:211:5)

  killed: false,
  code: 1,
  signal: null,
  cmd: '/node_modules/.bin/karma start /test/karma.conf.js' }

Environment Details

• Karma version (output of karma --version): 2.0.3+ (2.0.2 worked)
• Bluebird Queue 0.0.8 with concurrency set as number > then 1

Steps to reproduce the behaviour

1. Set tests to Bluebird queue
2. Run

(Running sequentially is fine.)

I've found guy with very similar or the same problem - Nx issue #606

[lusarz]

Thanks for report,
as I wrote in this thread:
#3011 (comment)

I'll try to fix it soon :) As a workaround please revert to v2.0.2, or try to configure port separately for every pipeline.

[ochodek]

oh I didn't notice, thanks! :)