I'm also +1 on this. The change is quite small and may actually help perf on Linux as well (we've never tried this).
I have a lot of concerns on testing the various failure conditions but I think since it will be off by default the risk is not too high. -Jay On Mon, Apr 20, 2015 at 6:58 PM, Honghai Chen <honghai.c...@microsoft.com> wrote: > I wrote a KIP for this after some discussion on KAFKA-1646. > https://issues.apache.org/jira/browse/KAFKA-1646 > > https://cwiki.apache.org/confluence/display/KAFKA/KIP-20+-+Enable+log+preallocate+to+improve+consume+performance+under+windows+and+some+old+Linux+file+system > The RB is here: https://reviews.apache.org/r/33204/diff/ > > Thanks, Honghai > >