[jira] [Created] (MESOS-9896) Consider using protobuf provided json conversion facilities rather than custom ones.

["Benjamin Mahler (JIRA)" <ji...@apache.org>]

Benjamin Mahler created MESOS-9896:
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             Summary: Consider using protobuf provided json conversion facilities rather than custom ones.
                 Key: MESOS-9896
                 URL: https://issues.apache.org/jira/browse/MESOS-9896
             Project: Mesos
          Issue Type: Task
          Components: stout
            Reporter: Benjamin Mahler


Currently, stout provides custom JSON to protobuf conversion facilities, some of which use protobuf reflection.

When upgrading protobuf to 3.7.x in MESOS-9755, we found that the v0 /state response of the master slowed down, and it appears to be due to a performance regression in the protobuf reflection code.

We should file an issue with protobuf, but we should also look into using the json conversion code that protobuf provides to see if that can help avoid the regression.



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