Felix Abecassis created MESOS-3485:
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Summary: Make hook execution order deterministic
Key: MESOS-3485
URL: https://issues.apache.org/jira/browse/MESOS-3485
Project: Mesos
Issue Type: Improvement
Components: modules
Reporter: Felix Abecassis
Currently, when using multiple hooks of the same type, the execution order is
implementation-defined.
This is because in src/hook/manager.cpp, the list of available hooks is stored
in a {{hashmap<string, Hook*>}}. A hashmap is probably unnecessary for this
task since the number of hooks should remain reasonable. A data structure
preserving ordering should be used instead to allow the user to predict the
execution order of the hooks. I suggest that the execution order should be the
order in which hooks are specified with {{--hooks}} when starting an
agent/master.
This will be useful when combining multiple hooks after MESOS-3366 is done.
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