tree 97f6369d329abd62d761177833d6a86b00e130c8
parent 0c5486b4edcaa44dd9e124ae4f53475a0062cdbf
author Takeru Ohta <phjgt308@gmail.com> 1514207237 +0900
committer Takeru Ohta <phjgt308@gmail.com> 1514207237 +0900

Use the identifier of the root span as the tracer identifier