[MESOS-7043] FutureTest.After3 is flaky

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Component/s: libprocess, test
• Labels: flaky future libprocess mesosphere

Environment

ASF CI, and local repro on Ubuntu 14.04 VM

• Assignee: Unassigned
• Reporter: Greg Mann
• Created: 31/Jan/17 21:16
• Updated: 26/Apr/17 17:00
• Resolved: 31/Jan/17 21:19

Description

This was observed on ASF CI, and I was able to repro locally on an Ubuntu 14.04 VM. It seems to take on the order of several thousand repetitions to occur, when stressing the CPU simultaneously:

[ RUN      ] FutureTest.After3
../../../3rdparty/libprocess/src/tests/future_tests.cpp:284: Failure
Value of: weak_future.get().isNone()
  Actual: false
Expected: true

The Future code has been touched a couple times this month, so I suspect this test failure is related to the following patches:
https://reviews.apache.org/r/53299/
https://reviews.apache.org/r/55319/

Issue Links

• duplicates: MESOS-6907 FutureTest.After3 is flaky
• is related to: MESOS-6484 Memory leak in `Future<T>::after()`