data handoff from realtime node to historical node

Hi everyone,
I m using druid 0.9.0

to sum up, how datas hand-of from realtime node to historical node for big windowPeriods and can i trigger handoff manually?

Best regards,


Hi Yunus,

How large of a windowPeriod are you talking about? Typically, windowPeriod << segmentGranularity and is used for catching delayed events before finalizing the segment.

for large window period like 1 week

3 Mayıs 2016 Salı 03:45:53 UTC+3 tarihinde David Lim yazdı:

Ah I see. Window periods should not typically be that long, since as you’ve discovered, this blocks segment handoff to the historical nodes. If you need to ingest old data you should be using batch ingestion (