Handoff vs just flushing

[gouthamve]

One of the main reasons Cortex has handoff is because of the sheer amount of writes that'll happen to the database. Here we're going to have magnitudes less streams, and maybe just flushing on exit is a better tradeoff.

[daixiang0]

For multi-cpus, handoff is inevitable.
Besides, flushing does not impact on data right?

[gouthamve]

No, but it does slow down rollouts. Can you explain what you mean by multi-CPUs?

[daixiang0]

I mean multi-core cpus, which is common in production environment.

[tomwilkie]

How do multi-core CPUs affect chunk handoffs on rolling upgrades?

@gouthamve I think you've point is valid, we should experiment to see if chunk handoffs are necessary on rolling upgrades.

[slim-bean]

Handoff was implemented in #794