[MESOS-2838] In Resources JSON model() resources of the same name overwrite each other.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.23.0
• Labels: twitter
• Sprint: Twitter Mesos Q2 Sprint 5
• Story Points: 2
• Assignee: Yan Xu
• Reporter: Yan Xu
• Created: 09/Jun/15 22:11
• Updated: 22/Jul/15 17:21
• Resolved: 12/Jun/15 00:46

Description

As shown here: https://github.com/apache/mesos/blob/8559d7b7356ec91795e564767588c6f4519653a5/src/common/http.cpp#L50

So if there are two "cpus" of different roles, whichever comes later will overwrite the previous.

We should instead aggregate different resources of the same name.

However, in the presence of revocable resources, in order to maintain backwards compatibility we should exclude revocable resources.

Issue Links

• duplicates: MESOS-3128 state.json can not differentiate resources
• is blocked by: MESOS-2854 Resources::parse(...) allows different resources of the same name to have different types.
• is related to: MESOS-2623 Report correct states of (used|offered)Resources of master::Framework for state.json
• relates to: MESOS-2776 Master should expose metrics about oversubscribed resources