> On Aug. 1, 2019, 4:06 p.m., Andrei Budnik wrote:
> > src/slave/containerizer/mesos/isolators/posix/disk.cpp
> > Line 268 (original), 298 (patched)
> > <https://reviews.apache.org/r/71196/diff/2/?file=2158602#file2158602line298>
> >
> >     `info->directories.contains(path)`?

After applying your suggestion above, we can drop this change altogether. Now, 
the local `quota` hashmap is always consistent with the corresponding ephemeral 
directories, so we know that if there is no `quotas` entry then we should tear 
down the `info->paths` state.


> On Aug. 1, 2019, 4:06 p.m., Andrei Budnik wrote:
> > src/slave/containerizer/mesos/isolators/posix/disk.cpp
> > Lines 411 (patched)
> > <https://reviews.apache.org/r/71196/diff/2/?file=2158602#file2158602line411>
> >
> >     can we move the computation of `currentUsage` inside the condition:
> >     ```
> >     if (flags.enforce_container_disk_quota && !isDiskSourceMount) {
> >       Bytes currentUsage = future.get();
> >     
> >       if (info->directories.contains(path)) {
> >       ...
> >     }
> >     ```
> >     so that this isolator never evaluates `currentUsage` for `MOUNT`. Also, 
> > this code becomes a bit simpler.

I moved the ephemeral usage estimation to the `Info`, which makes this change 
cleaner.


- James


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On July 30, 2019, 7:51 a.m., James Peach wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/71196/
> -----------------------------------------------------------
> 
> (Updated July 30, 2019, 7:51 a.m.)
> 
> 
> Review request for mesos, Xudong Ni, Gilbert Song, Jie Yu, and Jiang Yan Xu.
> 
> 
> Bugs: MESOS-9900
>     https://issues.apache.org/jira/browse/MESOS-9900
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> Updated the `disk/du` isolator to support isolating rootfs ephemeral
> volumes. We need to keep track of the ephemeral paths and start a `du`
> check for each one of them, but otherwise treat them in the same way
> as the sandbox path.
> 
> 
> Diffs
> -----
> 
>   src/slave/containerizer/mesos/isolators/posix/disk.hpp 
> f513dfc55a6e680ca451586015f98f91e0b6abc5 
>   src/slave/containerizer/mesos/isolators/posix/disk.cpp 
> 4869c72f77ea15978496f66997c63b07276d85f0 
> 
> 
> Diff: https://reviews.apache.org/r/71196/diff/2/
> 
> 
> Testing
> -------
> 
> sudo make check (Frdora 30)
> 
> 
> Thanks,
> 
> James Peach
> 
>

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