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From Neil Conway <>
Subject Re: Review Request 54793: Prevented task launches that reuse unreachable task IDs.
Date Tue, 10 Jan 2017 22:36:20 GMT

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(Updated Jan. 10, 2017, 10:36 p.m.)

Review request for mesos and Vinod Kone.


Unbreak test.

Bugs: MESOS-6805

Repository: mesos


The master keeps an in-memory cache of task IDs that have recently been
marked unreachable. The master now consults this cache to reject task
launch attempts that reuse one of these recently unreachable task IDs
(such tasks are not terminal and may resume running in the future). This
check is not complete (we won't detect all cases in which unreachable
task IDs are reused), but preventing this from happening in the common
case seems worth doing. See MESOS-6785 for details.

Diffs (updated)

  src/master/validation.cpp 96aa36585ded4bd7cf98526f710ccbc4f23b1f0f 
  src/tests/partition_tests.cpp 72013d1bfee275c6f3cb90173f0c408d55e0bc5d 



`make check`


Neil Conway

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