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From Lawrence Wu <>
Subject Re: Review Request 50540: Add systemd watchdog support.
Date Fri, 12 Aug 2016 20:18:51 GMT

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(Updated Aug. 12, 2016, 8:18 p.m.)

Review request for mesos, David Robinson and Ian Downes.


address feedback

Bugs: MESOS-5376

Repository: mesos


Add systemd watchdog support.

Diffs (updated)
----- d2136909b7305498ae901a5ea00133142b77f9e6 
  src/ 599ebbef6d164fb2a530b55427ddabb5cd607634 
  src/linux/systemd.hpp 91134f1d4b100759e45931bd09ca4e1e1aeaaf8a 
  src/linux/systemd.cpp 619aa2778da5f99d3a078a8e1208bdaa9dc77581 
  src/slave/main.cpp 4624392d30cf391015dcd63f447fe2414a47a16a 
  src/tests/linux/systemd_test_helper.hpp PRE-CREATION 
  src/tests/linux/systemd_test_helper.cpp PRE-CREATION 
  src/tests/linux/systemd_test_helper_main.cpp PRE-CREATION 
  src/tests/linux/systemd_tests.cpp PRE-CREATION 



Tested by sending SIGSTOP to running mesos and verifying via journalctl that it was killed
by the watchdog.

The test I wrote for this does the following:
- build up a unit file as a string and create a unit file in /etc/systemd/system/systemd-test-helper.service
- reload the systemd daemon and start the newly discovered helper service
- wait a bit (30s) to make sure the watchdog has had a chance to kill the service
- use systemctl status systemd-test-helper to check that the service is still running
- clean up the unit file.

TODO: create a similar test, but send a SIGSTOP to the service and ensure that it has been
killed by watchdog.


Lawrence Wu

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