On Fri, May 25, 2012 at 8:43 AM, Arun C Murthy <a...@hortonworks.com> wrote:
> Srivas, > > On May 22, 2012, at 9:45 PM, M. C. Srivas wrote: > > > 3. M5 has full HA for the Job-Tracker as well. > > > Curious. Can you please share some information about what this means? > The JT will be restarted (perhaps on another node if the node where it's running has died). On recovery, JT will resume currently running jobs from where they were, ie., they are not lost or abandoned like is the case today with Apache Hadoop or CDH. > Will tasks continue to run if JT bounces? > Yes. > Will jobs start from scratch? > No. Works even across entire cluster reboots. As I said in my original posting, "- If there is a complete cluster crash and reboot (eg, a full power-failure of the entire cluster), M5 will recover in 5-10 minutes, and submitted jobs will resume from where they were." > thanks, > Arun > > -- > Arun C. Murthy > Hortonworks Inc. > http://hortonworks.com/ > > >
