Can you give a bit more detail on why block eviction was cause for the slow region movement?
Did you happen to take stack traces ? Thanks > On Oct 15, 2015, at 10:32 AM, Randy Fox <[email protected]> wrote: > > Hi, > > We just upgraded from 0.94 to 1.0.0 and have noticed that region moves are > super slow (order of minutes) whereas previously they where in the seconds > range. After looking at the code, I think the time is spent waiting for the > blocks to be evicted from block cache. > > I wanted to verify that this theory is correct and see if there is anything > that can be done to speed up the moves. > > This is particular painful as we are trying to get our configs tuned to the > new SW and need to do rolling restarts which is taking almost 24 hours on our > cluster. We also do our own manual rebalancing of regions across RS’s and > that task is also now painful. > > > Thanks, > > Randy
