Repository: node
Issue: Flaky test: parallel/test-tls-ticket-cluster
Labels: tls,child_process,macos,flaky-test

* **Version**: master
* **Platform**: test-macstadium-macos10.11-x64-1
* **Subsystem**: test

[Console output](https://ci.nodejs.org/job/node-test-commit-osx/28651/nodes=osx1011/console)

```
04:34:35 not ok 2094 parallel/test-tls-ticket-cluster
04:34:35   ---
04:34:35   duration_ms: 0.579
04:34:35   severity: fail
04:34:35   exitcode: 1
04:34:35   stack: |-
04:34:35     [master] got "listening"
04:34:35     [master] connecting 60380 session? false
04:34:35     [worker] connection reused? false
04:34:35     [master] got "not-reused"
04:34:35     [master] connecting 60380 session? true
04:34:35     [worker] connection reused? true
04:34:35     [master] got "reused"
04:34:35     [master] connecting 60380 session? true
04:34:35     [worker] connection reused? true
04:34:35     [master] got "reused"
04:34:35     [master] connecting 60380 session? true
04:34:35     [worker] connection reused? true
04:34:35     [master] got "reused"
04:34:35     [master] connecting 60380 session? true
04:34:35     [worker] connection reused? true
04:34:35     [master] got "reused"
04:34:35     [master] connecting 60380 session? true
04:34:35     [worker] connection reused? true
04:34:35     [master] got "reused"
04:34:35     [master] connecting 60380 session? true
04:34:35     [worker] connection reused? true
04:34:35     [master] got "reused"
04:34:35     [master] connecting 60380 session? true
04:34:35     [worker] connection reused? true
04:34:35     [master] got "reused"
04:34:35     [master] connecting 60380 session? true
04:34:35     [worker] connection reused? true
04:34:35     [master] got "reused"
04:34:35     [master] connecting 60380 session? true
04:34:35     [worker] connection reused? true
04:34:35     [master] got "reused"
04:34:35     [master] connecting 60380 session? true
04:34:35     [worker] connection reused? true
04:34:35     [master] got "reused"
04:34:35     [master] connecting 60380 session? true
04:34:35     [master] got "listening"
04:34:35     [worker] connection reused? true
04:34:35     [master] got "reused"
04:34:35     [master] connecting 60380 session? true
04:34:35     [worker] connection reused? true
04:34:35     [master] got "reused"
04:34:35     [master] connecting 60380 session? true
04:34:35     [worker] connection reused? true
04:34:35     [master] got "reused"
04:34:35     [master] connecting 60380 session? true
04:34:35     [worker] connection reused? true
04:34:35     [master] got "reused"
04:34:35     [master] connecting 60380 session? true
04:34:35     [worker] connection reused? true
04:34:35     [master] got "reused"
04:34:35     [worker] got "die"
04:34:35     [worker] server close
04:34:35     [worker] exit
04:34:35     [worker] got "die"
04:34:35     [worker] server close
04:34:35     [worker] exit
04:34:35     [worker] got "die"
04:34:35     [worker] server close
04:34:35     [worker] exit
04:34:35     [worker] got "die"
04:34:35     [worker] server close
04:34:35     [worker] exit
04:34:35     events.js:186
04:34:35           throw er; // Unhandled 'error' event
04:34:35           ^
04:34:35     
04:34:35     Error: write EPIPE
04:34:35         at ChildProcess.target._send (internal/child_process.js:813:20)
04:34:35         at ChildProcess.target.send (internal/child_process.js:683:19)
04:34:35         at sendHelper (internal/cluster/utils.js:22:15)
04:34:35         at send (internal/cluster/master.js:351:10)
04:34:35         at internal/cluster/master.js:317:5
04:34:35         at done (internal/cluster/round_robin_handle.js:46:7)
04:34:35         at RoundRobinHandle.add (internal/cluster/round_robin_handle.js:55:12)
04:34:35         at queryServer (internal/cluster/master.js:311:10)
04:34:35         at Worker.onmessage (internal/cluster/master.js:246:5)
04:34:35         at ChildProcess.onInternalMessage (internal/cluster/utils.js:43:8)
04:34:35     Emitted 'error' event on Worker instance at:
04:34:35         at ChildProcess.<anonymous> (internal/cluster/worker.js:27:12)
04:34:35         at ChildProcess.emit (events.js:209:13)
04:34:35         at internal/child_process.js:817:39
04:34:35         at processTicksAndRejections (internal/process/task_queues.js:75:11) {
04:34:35       errno: -32,
04:34:35       code: 'EPIPE',
04:34:35       syscall: 'write'
04:34:35     }
```