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https://reviews.apache.org/r/75145/
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Review request for mesos and Benjamin Mahler.


Repository: mesos


Description
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We currently do not have any method of recovering the device access
states when the cgroups 2 isolator is atempting to recover containers.

We add a recovery state here that makes use of the protobuf checkpoint
files to ensure that the previous device accesses of cgroups can be
restored. It will be used by the cgroups 2 isolator.


Diffs
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  src/slave/containerizer/device_manager/device_manager.hpp 
853350f70e12b992ef311a35c509a5dce8f2301a 
  src/slave/containerizer/device_manager/device_manager.cpp 
e613323dc47a7980984426d37b6fc5cfc52dffe0 
  src/tests/device_manager_tests.cpp c4e9b8c58282b8d57b5ce88fefddd34c8ea30c77 


Diff: https://reviews.apache.org/r/75145/diff/1/


Testing
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Test added to check the functionality of recover() with container state. Tests 
pass, and the state was recovered.


Thanks,

Jason Zhou

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