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From Alexander Rukletsov <ruklet...@gmail.com>
Subject Re: Review Request 55901: Added support for command health checks to the default executor.
Date Tue, 07 Feb 2017 09:53:09 GMT


> On Jan. 28, 2017, 1:17 a.m., Vinod Kone wrote:
> > src/checks/health_checker.cpp, lines 426-429
> > <https://reviews.apache.org/r/55901/diff/1/?file=1613998#file1613998line426>
> >
> >     why a `.repair()` here?
> 
> Gastón Kleiman wrote:
>     To fail the future/check with a nice descriptive message that will later be logged.
> 
> Vinod Kone wrote:
>     The message returned by `http::connect` should be good enough? Do we use this pattern
elsewhere esp. with connect? Most uses of repair I have seen in the code base, transform the
future not really to add extra logging information.

We use `.repair` for adjusting the message or changing the error type, which is technically
the same. Here are some examples from the code:
https://github.com/apache/mesos/blob/25f4feae487d53a701adb787fd8a2e5f6166b789/3rdparty/libprocess/src/http.cpp#L1766-L1769
https://github.com/apache/mesos/blob/25f4feae487d53a701adb787fd8a2e5f6166b789/src/master/http.cpp#L4695-L4697
https://github.com/apache/mesos/blob/25f4feae487d53a701adb787fd8a2e5f6166b789/src/slave/containerizer/mesos/io/switchboard.cpp#L1632-L1638

Now, the question is whether connection failure message is good enough? Gastón, could you
trigger a failure path and check what error message will be returned?


- Alexander


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https://reviews.apache.org/r/55901/#review163363
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On Feb. 3, 2017, 7:52 p.m., Gastón Kleiman wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/55901/
> -----------------------------------------------------------
> 
> (Updated Feb. 3, 2017, 7:52 p.m.)
> 
> 
> Review request for mesos, Alexander Rukletsov, Anand Mazumdar, haosdent huang, and Vinod
Kone.
> 
> 
> Bugs: MESOS-6280
>     https://issues.apache.org/jira/browse/MESOS-6280
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> Added support for command health checks to the default executor.
> 
> 
> Diffs
> -----
> 
>   src/checks/health_checker.hpp 95da1ff7dd6b222a93076633eb3757ec9aa43cf6 
>   src/checks/health_checker.cpp 58380dc18896f659aa9c4fb4bb567a55bba97f6b 
>   src/launcher/default_executor.cpp 97eee05cac8cb1f62d43e2aecc08a8e54e49eac3 
>   src/tests/health_check_tests.cpp 8418cd91484fd26734de16255b37f3ebf574f5eb 
> 
> Diff: https://reviews.apache.org/r/55901/diff/
> 
> 
> Testing
> -------
> 
> Introduced a new test: `HealthCheckTest.DefaultExecutorCmdHealthCheck`. It passes on
Linux, but not on macOS.
> 
> 
> Thanks,
> 
> Gastón Kleiman
> 
>


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