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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/23912/
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(Updated Oct. 7, 2014, 8:18 a.m.)


Review request for mesos.


Changes
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Fixed all issues as suggested by Vinod.


Bugs: MESOS-947
    https://issues.apache.org/jira/browse/MESOS-947


Repository: mesos-git


Description
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Fixes MESOS-947 "Slave should properly handle a killTask() that arrives between 
runTask() and _runTask()".

Slave::killTask() did not check for task in question combination to be 
"pending" (i.e. Slave::runTask had happened, but Slave::_runTask had not yet) 
and then erroneously assumed that Slave::runTask() had not been executed. The 
task was then marked "LOST" instead of "KILLED". But Slave::runTask had already 
scheduled Slave::_runTask to follow. Now the entry for being "pending" is 
removed, and the task is marked "KILLED", and _runTask gets informed about 
this. It checks whether the task in question is currently "pending" and if it 
is not, then it infers that the task has been killed and does not erroneously 
try to complete launching it.


Diffs (updated)
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  src/slave/slave.hpp 28697102047b972ecb3b6b627ee089b430549fc0 
  src/slave/slave.cpp e56dcbd80114730949a0d4b553470802a4d38281 
  src/tests/mesos.hpp 957e2233cc11c438fd80d3b6d1907a1223093104 
  src/tests/mesos.cpp 3dcb2acd5ad4ab5e3a7b4fe524ee077558112773 
  src/tests/slave_tests.cpp 69be28f6e82b99e23424bd2be8294f715d8040d4 

Diff: https://reviews.apache.org/r/23912/diff/


Testing
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Wrote a unit test that reliably created the situation described in the ticket. 
Observed that TASK_LOST and the listed log output occurred. This pointed 
directly to the lines in killTask() where the problem is rooted. Ran the test 
after fixing, it succeeded. Checked the log. It looks like a "clean kill" now 
:-)


Thanks,

Bernd Mathiske

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