[IMPALA-3264] FrontEnd Plan Serialization time

• Type: Task
• Status: Resolved
• Priority: Minor
• Resolution: Cannot Reproduce
• Affects Version/s: Impala 2.2.4
• Component/s: Perf Investigation
• Assignee: Unassigned
• Reporter: Alan Choi
• Created: 30/Mar/16 00:59
• Updated: 11/Jul/18 17:17
• Resolved: 11/Jul/18 17:17

Description

It has been observed that the "planning timeline" in FE is only ~500ms, but the "Finished Planning" time in the query profile timeline is ~2sec. Such a big discrepancy could be due to the plan serialization time. Investigate potential issues in plan serialization.