Hey Steve, Interesting, thanks for pointing that out! I didn't know that it disables this by default :)
On Mon, Aug 13, 2012 at 8:38 PM, Steve Loughran <[email protected]> wrote: > > > On 13 August 2012 07:55, Harsh J <[email protected]> wrote: >> >> >> >> Note that with 2.1.0 (upcoming) and above releases of HDFS, we offer a >> working hsync() API that allows you to write files with guarantee that >> it has been written to the disk (like the fsync() *nix call). > > > A guarantee that the OS thinks it's been written to HDD. > > For anyone using Hadoop or any other program (e.g MySQL) in a virtualized > environment , even when the OS thinks it has flushed a virtual disk -know > that you may have set some VM params to say "when we said "flush to disk" we > meant it": > https://forums.virtualbox.org/viewtopic.php?t=13661 > > > -- Harsh J
