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Review request for mesos, Greg Mann and Till Toenshoff.
Bugs: MESOS-8179
https://issues.apache.org/jira/browse/MESOS-8179
Repository: mesos
Description
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Prior to this patch, if a connection to the master is interrupted
between `send()` and `_send()`, executor library will crash on
`CHECK`. Since the connection can turn into pumpkin at any time, we
should not fail in this case.
Diffs
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src/scheduler/scheduler.cpp fe374541621015d04a594f68d009ce50ec751d30
Diff: https://reviews.apache.org/r/63662/diff/1/
Testing
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make check on Mac OS 10.11.6
Additionally run
```
GLOG_v=1 GTEST_FILTER="*SchedulerTest.MasterFailover*" ./bin/mesos-tests.sh
--verbose --gtest_repeat=100 --gtest_break_on_failure
```
and grepped for "Connection to master" to ensure that this path is taken.
`SchedulerTest.MasterFailover` is modified locally to increase chances by
adding multiple `detector->appoint(master.get()->pid);` statements.
Thanks,
Alexander Rukletsov
