Re: Review Request 67343: Automatically loaded all the local enabled cgroups subsystems.

[Qian Zhang <zh...@gmail.com>]

> On May 31, 2018, 8:42 a.m., Gilbert Song wrote:
> > src/slave/containerizer/mesos/isolators/cgroups/cgroups.cpp
> > Lines 108 (patched)
> > <https://reviews.apache.org/r/67343/diff/3/?file=2032117#file2032117line108>
> >
> >     enabled cgroup subsystems?

I'd like to be consistent with the existing ones, like:
https://github.com/apache/mesos/blob/1.6.0/src/slave/containerizer/mesos/isolators/cgroups/cgroups.cpp#L122

I guess we do not need the word `cgroups` here because we are already in the cgroups isolator.


> On May 31, 2018, 8:42 a.m., Gilbert Song wrote:
> > src/slave/containerizer/mesos/isolators/cgroups/cgroups.cpp
> > Lines 134 (patched)
> > <https://reviews.apache.org/r/67343/diff/3/?file=2032117#file2032117line134>
> >
> >     this is not like happen though, but I am thinking if we should return an error and block the agent in this case?

As we discussed, we'd better to error out in this case.


> On May 31, 2018, 8:42 a.m., Gilbert Song wrote:
> > src/slave/containerizer/mesos/isolators/cgroups/cgroups.cpp
> > Lines 163 (patched)
> > <https://reviews.apache.org/r/67343/diff/3/?file=2032117#file2032117line163>
> >
> >     why not const ref?

My bad, thanks for catching this!


- Qian


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On May 30, 2018, 9:05 p.m., Qian Zhang wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/67343/
> -----------------------------------------------------------
> 
> (Updated May 30, 2018, 9:05 p.m.)
> 
> 
> Review request for mesos and Gilbert Song.
> 
> 
> Bugs: MESOS-7691
>     https://issues.apache.org/jira/browse/MESOS-7691
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> When `cgroups/all` is specified in the agent flag `--isolation`, we
> will automatically load all the local enabled cgroups subsystems in
> the cgroups isolator with one exception: the `perf_event` subsystem,
> we will only automatically load it when the agent flag `--perf_events`
> is specified, otherwise it will be skipped.
> 
> 
> Diffs
> -----
> 
>   src/slave/containerizer/mesos/containerizer.cpp 93197b05eb837d02c6c113264f20a33d6ed92d7f 
>   src/slave/containerizer/mesos/isolators/cgroups/cgroups.cpp 6d663a5770418b7ffe2b3af50b9181ecde183c67 
> 
> 
> Diff: https://reviews.apache.org/r/67343/diff/3/
> 
> 
> Testing
> -------
> 
> sudo make check
> 
> 
> Thanks,
> 
> Qian Zhang
> 
>