Does it happen when running Hadoop locally as a single process? I was testing my code locally and didn't see failure recovery. The other thing is, how is "failure" defined? If in map(...) there's a uncaught exception occurs and the task fails, can this kind of failure be recovered?
Thanks, Ming 2007/10/18, Owen O'Malley <[EMAIL PROTECTED]>: > On Oct 18, 2007, at 8:05 PM, Ming Yang wrote: > > > In the original MapReduce paper from Google, it mentioned > > that healthy workers can take over failed task from other > > workers. Does Hadoop has the same failure recovery strategy? > > Yes. If a task fails on one node, it is assigned to another free node > automatically. >
