> On Feb. 20, 2018, 11:43 a.m., Jeff Coffler wrote:
> > src/tests/fetcher_tests.cpp
> > Lines 132 (patched)
> > <https://reviews.apache.org/r/65624/diff/1/?file=1958439#file1958439line132>
> >
> >     These tests pretty much check the fetcher in a "stand-alone" 
> > environment. Could you add some tests to check within a container as well, 
> > particularly since fetcher logging is slightly different within a container?
> >     
> >     Note that while fetcher output is slightly different within a 
> > container, fetcher itself isn't (docker is sharing the same directory). But 
> > we don't have any sort of tests to validate that - that I'm aware of anyway.
> 
> Andrew Schwartzmeyer wrote:
>     This covers the affected scenarios; nothing changes running "in a 
> container" on Windows compared to this unit test with respect to output 
> redirection. When task is started with a URI to fetch, the fetcher is 
> directly invoked with the sandbox directory as done here to fetch the URI(s), 
> before the container starts. In essence, the fetcher is always run 
> "stand-alone".
> 
> Jeff Coffler wrote:
>     That's correct for fetching. However, logging is somewhat different since 
> stderr/stdout logging is somewhat different under Docker vs. on a stand-alone 
> system. That's what I was referring to ...

This fetcher is never used under Docker. What scenario are you imagining?


- Andrew


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On Feb. 20, 2018, 11:40 a.m., Andrew Schwartzmeyer wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/65624/
> -----------------------------------------------------------
> 
> (Updated Feb. 20, 2018, 11:40 a.m.)
> 
> 
> Review request for mesos, Akash Gupta, Jeff Coffler, Jie Yu, and Joseph Wu.
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> The fetcher is supposed to log its `stderr` output to a redirected file
> called `stderr` in the given sandbox directory. There previously existed
> a bug on Windows due to incorrect handle inheritance where this
> redirection failed silently, leaving the log empty. These unit tests
> assert that the correct content is logged to the `stderr` file for both
> a success and failure fetch scenario.
> 
> 
> Diffs
> -----
> 
>   src/tests/fetcher_tests.cpp 1b4ba1d286f218731c13180e5189e91f90e3d63f 
> 
> 
> Diff: https://reviews.apache.org/r/65624/diff/1/
> 
> 
> Testing
> -------
> 
> Windows (Linux pending):
> ```
> [ RUN      ] FetcherTest.LogSuccessToStderr
> [       OK ] FetcherTest.LogSuccessToStderr (197 ms)
> [ RUN      ] FetcherTest.LogFailureToStderr
> [       OK ] FetcherTest.LogFailureToStderr (320 ms)
> ```
> 
> 
> Thanks,
> 
> Andrew Schwartzmeyer
> 
>

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