test: investigate test-http-server-keep-alive-timeout-slow-client-headers

[refack]

• Version: master
• Platform: freeBSD
• Subsystem: test

678	parallel/test-http-server-keep-alive-timeout-slow-client-headers	
duration_ms	1.131
severity	fail
stack	
events.js:182
      throw er; // Unhandled 'error' event
      ^

Error: write after end
    at writeAfterEnd (_stream_writable.js:220:12)
    at Socket.Writable.write (_stream_writable.js:271:5)
    at Socket.write (net.js:699:40)
    at request (/usr/home/iojs/build/workspace/node-test-commit-freebsd/nodes/freebsd10-64/test/parallel/test-http-server-keep-alive-timeout-slow-client-headers.js:36:12)
    at common.mustCall (/usr/home/iojs/build/workspace/node-test-commit-freebsd/nodes/freebsd10-64/test/parallel/test-http-server-keep-alive-timeout-slow-client-headers.js:20:7)
    at /usr/home/iojs/build/workspace/node-test-commit-freebsd/nodes/freebsd10-64/test/common/index.js:520:15
    at onHeaders (/usr/home/iojs/build/workspace/node-test-commit-freebsd/nodes/freebsd10-64/test/parallel/test-http-server-keep-alive-timeout-slow-client-headers.js:54:7)
    at Socket.onData (/usr/home/iojs/build/workspace/node-test-commit-freebsd/nodes/freebsd10-64/test/parallel/test-http-server-keep-alive-timeout-slow-client-headers.js:47:9)
    at emitOne (events.js:115:13)
    at Socket.emit (events.js:210:7)

https://ci.nodejs.org/job/node-test-commit-freebsd/10068/nodes=freebsd10-64/tapResults/

[refack]

/cc @aqrln

[Trott]

I'm able to replicate this under load (as well as another error) with this:

tools/test.py --repeat 368 -j 92 parallel/test-http-server-keep-alive-timeout-slow-client-headers

As usual, the suspected culprit (without looking at the code) is a race condition....

[aqrln]

@refack thanks for the ping. I am currently at a conference and then I'm having/continuing a little vacation for the next few days, so I'm not able to look into it right now, sorry. I will take a look after Wednesday if no one beats me to it.

[refack]

@refack thanks for the ping. I am currently at a conference and then I'm having/continuing a little vacation for the next few days, so I'm not able to look into it right now, sorry. I will take a look after Wednesday if no one beats me to it.

@aqrln Have fun!

[refack]

@aqrln ping
https://ci.nodejs.org/job/node-test-commit-freebsd/10428/nodes=freebsd10-64

not ok 690 parallel/test-http-server-keep-alive-timeout-slow-server
  ---
  duration_ms: 1.608
  severity: fail
  stack: |-
    events.js:182
          throw er; // Unhandled 'error' event
          ^
    
    Error: socket hang up
        at createHangUpError (_http_client.js:345:15)
        at Socket.socketOnEnd (_http_client.js:437:23)
        at emitNone (events.js:110:20)
        at Socket.emit (events.js:207:7)
        at endReadableNT (_stream_readable.js:1045:12)
        at _combinedTickCallback (internal/process/next_tick.js:138:11)
        at process._tickCallback (internal/process/next_tick.js:180:9)
  ...

[aqrln]

@refack oops, sorry, I forgot about it. Will look into it in a few hours, it's time to return to GitHub after some period of inactivity, I guess :D