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https://reviews.apache.org/r/75143/
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Review request for mesos and Benjamin Mahler.


Repository: mesos


Description
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Currently we do not checkpoint the device access state of each cgroup
when the configure or reconfigure is called. Meaning that we have
no way of recovering a cgroup's device access state.

We will checkpoint state of the device manager whenever its state
is being changed to ensure that we can recover the most recent state
when necessary.


Diffs
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  src/slave/containerizer/device_manager/device_manager.cpp 
e613323dc47a7980984426d37b6fc5cfc52dffe0 


Diff: https://reviews.apache.org/r/75143/diff/1/


Testing
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In later patches of the stack, we were able to ensure that the state was 
persisted and was able to be recovered.


Thanks,

Jason Zhou

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