[IMPALA-6321] there is a mistake about 'MaterializeTupleTime' for kudu

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Not A Problem
• Affects Version/s: Impala 2.9.0
• Component/s: Backend
• Labels: kudu
• Target Version: Product Backlog
• Epic Color: ghx-label-8
• Assignee: Unassigned
• Reporter: LiFu He
• Created: 14/Dec/17 09:23
• Updated: 26/Dec/17 02:57
• Resolved: 26/Dec/17 02:57

Description

hi,
i find that the 'MaterializeTupleTime' for kuduScanner is very different from hdfsScanner while reading impala's profile.
in 'class HdfsParquetScanner' there is a timer named 'ScopedTimer<MonotonicStopWatch> assemble_rows_timer_', but in 'class KuduScanner' there is not.
maybe we need to add the timer for kuduScanner, just like hdfsScanner does.