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From "Marco Massenzio" <>
Subject Re: Review Request 36061: Slave exits gracefully on DNS lookup failure.
Date Wed, 01 Jul 2015 00:32:23 GMT

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(Updated June 30, 2015, 5:32 p.m.)

Review request for mesos, Adam B and Joris Van Remoortere.


Added MESOS-2962 to the "Bugs" field.

Bugs: MESOS-2962

Repository: mesos


Jira: MESOS-2962

Slave fails with Abort stacktrace when DNS cannot resolve hostname

If the DNS cannot resolve the hostname for a slave node, we correctly return an Error object,
but we then fail with a segfault.

This code adds a more user-friendly message and exits normally (with an `EXIT_FAILURE` code).
For example, forcing `net::getIp()` to always return an Error, now causes the slave to exit
like this:
$ ./bin/ --master=
WARNING: Logging before InitGoogleLogging() is written to STDERR
E0630 11:31:45.777465 1944417024 process.cpp:899] Could not obtain the IP address for stratos.local;
the DNS service may not be able to resolve it: >>> Marco was here!!!

$ echo $?


  3rdparty/libprocess/src/process.cpp d99947c1598c43c47c88ef3e8038081855f0d1dc 



make check
and manual failing the DNS


Marco Massenzio

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