Neil Conway created MESOS-3977:
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Summary: http::_operation() creates unnecessary filter, rescinds
unnecessarily
Key: MESOS-3977
URL: https://issues.apache.org/jira/browse/MESOS-3977
Project: Mesos
Issue Type: Bug
Reporter: Neil Conway
Priority: Minor
This function is used by the /reserve, /unreserve, /create-volume, and
/destroy-volume endpoints. It has a few worts:
1. It installs a 5-second filter when rescinding an offer. However, the cluster
state might change so that the filter is actually undesirable. For example,
this scenario:
* Create DR, make offer
* Create PV => rescinds previous offer, sets filter, makes offer
* Destroy PV => rescinds previous offer
After the last step, we'll wait 5 seconds for the filter to expire before
re-offering the DR.
2. If there are sufficient available resources at the target slave, we don't
actually need to rescind any offers in the first place. However, _operation()
rescinds offers unconditionally.
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