[HADOOP-13839] Fix outdated tracing documentation

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.7.3
• Fix Version/s: 2.7.4
• Component/s: documentation, tracing
• Target Version/s: 2.7.4
• Assignee: Marton Elek
• Reporter: Masatake Iwasaki
• Created: 28/Nov/16 23:34
• Updated: 07/Jan/17 01:08
• Resolved: 05/Jan/17 01:19

Description

Sample code in tracing doc is based on older version of SpanReceiverHost. The doc in branch-2 and trunk seems to be good.