[SPARK-2845] Add timestamp to BlockManager events

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.1.0
• Fix Version/s: 1.2.0
• Component/s: Spark Core
• Target Version/s: 1.2.0
• Assignee: Marcelo Masiero Vanzin
• Reporter: Marcelo Masiero Vanzin
• Created: 04/Aug/14 18:48
• Updated: 03/Sep/14 21:52
• Resolved: 03/Sep/14 21:49

Description

BlockManager events in SparkListener.scala do not have a timestamp; while not necessary for rendering the Spark UI, the extra information might be interesting for other tools that use the event data.

Note that the same applies to lots of other events; it would be nice, at some point, to have all of them have a timestamp assigned at the point of creation of the event, so that network traffic / event queueing in the driver do not affect that information. But right now, I'm more interested in those particular events.