[HADOOP-17856] JsonSerDeser to collect IOStatistics

• Type: Sub-task
• Status: Resolved
• Priority: Minor
• Resolution: Won't Fix
• Affects Version/s: 3.3.1
• Component/s: common
• Assignee: Unassigned
• Reporter: Steve Loughran
• Created: 19/Aug/21 14:07
• Updated: 12/Jul/22 18:21
• Resolved: 12/Jul/22 18:21

Description

json deserializer to build stats on reading costs, which can then be collected too to measure cost of ser/deser and of file IO from the input/output streams, if they provide it.

Allows for committers to report costs better here.