Meng Zhu created MESOS-9777:
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Summary: Consider doing an internal retry if reservation and etc.
operations fail due to 409 conflict.
Key: MESOS-9777
URL: https://issues.apache.org/jira/browse/MESOS-9777
Project: Mesos
Issue Type: Improvement
Components: master
Reporter: Meng Zhu
A reservation request may return 409 Conflict:
https://github.com/apache/mesos/blob/261d6ef497383795557aaca5dce426b4482eabea/src/master/http.cpp#L4026
It is due to the inherent race between the master and allocator actor. As
illustrated here:
https://github.com/apache/mesos/blob/261d6ef497383795557aaca5dce426b4482eabea/src/master/allocator/mesos/hierarchical.cpp#L992-L1008
This is not ideal and should be rare. However, it is hard for users to grasp
this error. It seems to be beneficial for Mesos to retry the reservation
operation internally for the user.
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