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(Updated Sept. 6, 2016, 10:02 p.m.) Review request for mesos, Benjamin Mahler, Joris Van Remoortere, Michael Park, and Jiang Yan Xu. Changes ------- Minor fix and rebase. Bugs: MESOS-4431 https://issues.apache.org/jira/browse/MESOS-4431 Repository: mesos Description ------- o Each shared resource is accouted via its share count. This count is updated based on the resource operations (such as add and subtract) in various scenarios such as task launch and terminate at multiple modules such as master, allocator, sorter, etc. o Only allow DESTROY if there are no running or pending tasks using the volume. However, if the volume is in a pending offer to one or more frameworks, rescind that offer before processing the DESTROY. o To allow multiple tasks to be launched in the same ACCEPT call using the same shared resource, we update the allocator and sorter with additional copies of shared resources to reflect the true shared count of allocated shared resources. Diffs (updated) ----- src/master/allocator/mesos/hierarchical.hpp dd07ed221d2c1755d2478369641ffdc46ecc4471 src/master/allocator/mesos/hierarchical.cpp 9e5db2196c6a541dc1208ba8b9f13ef9a518bcc4 src/master/allocator/sorter/drf/sorter.hpp 09aa685f2bd7197385959d7d70d5411d0fd72f06 src/master/allocator/sorter/drf/sorter.cpp 1f2954c564eea5a3c649a5cc7181cb69329f9e35 src/master/http.cpp 525ef6cd7545d25f3ac89a6325ace6e6d768262a src/master/master.hpp c32c7e9d859ef73216354e2c03ecc07d0009b12f src/master/master.cpp b2a19a645528e8fc1fd48f5ac9929d38c9a76b49 src/master/validation.hpp 3205ee1e699d0fb7ca16ced96a07be3a07cf8956 src/master/validation.cpp 15e2ecc2de99d6bed522f45f855ba686bf19c008 Diff: https://reviews.apache.org/r/45961/diff/ Testing ------- Tests successful. Thanks, Anindya Sinha