Andrew Purtell <apurtell@...> writes: > CPs hook compaction by allowing one to wrap the scanner that is iterating over the store files. So the > wrapper gets a chance to examine the KeyValues being processed and also has an opportunity to modify or > drop them. > > Similarly for incoming HFiles for bulk load, the CP could be given a scanner iterating over those files, if > you had a RegionObserver installed. You would be given the option in effect to rewrite the incoming HFiles > before they are handed over to the RegionServer for addition to the region. > > This is the right approach to interface design here, IMO, because the fact you are given a scanner > highlights the bulk nature of the input. > > Is this something you could use? > > Best regards, > > - Andy > > Problems worthy of attack prove their worth by hitting back. - Piet Hein (via Tom White) >
Yes, I think that might become handy, at least to let know the trigger code that new stuff is coming. stan
