[MESOS-9092] Adopt rapidjson for improved json serialization performance.

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.7.0
• Component/s: HTTP API, stout
• Labels: performance
• Assignee: Benjamin Mahler
• Reporter: Benjamin Mahler
• Created: 19/Jul/18 00:03
• Updated: 27/Jul/18 16:09
• Resolved: 25/Jul/18 03:27

Description

The master state query benchmark shows a roughly 50% reduction in time to serve v0 /state when jsonify uses rapidjson under the covers. We should consider adopting rapidjson in order to get this performance benefit to users:

https://github.com/Tencent/rapidjson

License wise, we just have to exclude a third party bundled binary, so we'll need to document how to strip the releases prior to upgrading for posterity.

Issue Links

• causes: MESOS-9114 cmake build is broken on macos
• causes: MESOS-9115 Stout depends on missing rapidjson headers.
• is related to: MESOS-8345 Improve master responsiveness while serving state information.