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From Neil Conway <>
Subject Review Request 49377: Fixed allocator to update total resources in quota sorter.
Date Wed, 29 Jun 2016 13:49:51 GMT

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Review request for mesos, Alexander Rukletsov, Joris Van Remoortere, and Michael Park.

Repository: mesos


Each DRFSorter tracks the total resources in the cluster. This means
that each sorter must be updated when the resources in the cluster have
changed, e.g., due to the creation of a dynamic reservation or a
persistent volume. In the previous implementation, the quota role sorter
was not updated for non-quota roles when a reservation or persistent
volume was created by a framework. This resulted in inconsistency
between the total resources in the allocator and the quota role sorter.

This could cause several problems. First, removing a slave from the
cluster would leak resources in the quota role sorter. Second, certain
interleavings of slave removals and reserve/unreserve operations by
frameworks and via HTTP endpoints could lead to CHECK failures.


  src/master/allocator/mesos/hierarchical.cpp c3639342335499a04a23147a4205f1b475c123fa 
  src/master/allocator/sorter/drf/sorter.cpp 27d56f274c41bbabe6f2abbbcebd2c4eff52693e 
  src/tests/persistent_volume_endpoints_tests.cpp 6c85e19eeaa69bf3a4e3077261331191db6eec06



make check on OSX and recent Arch Linux.


Neil Conway

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