Shay mentioned the following in another thread:
In 0.20 we will have a warmer API that allows to pre-warm new segments,
meaning that search requests will not "suffer" loading the data.
Will the warmer help people who use low index refresh interval? Or should
those people not use the warmer?
For example, if I'm constantly indexing new docs and I have 1s refresh
interval, if I were to use the new warmer I imagine ES might constantly
be warming up new segments.
I imagine that's not what one would want, right?
ES may even not be able to keep up with the rate of new segment creation if
document input rate is high?