Safest way would be to first shutdown HDFS and then shutdown Spark (call stop-all.sh would do) and then shutdown the machines.
You can execute the following command to disable safe mode: *hadoop fs -safemode leave* Thanks Best Regards On Sat, Jan 17, 2015 at 8:31 AM, Su She <suhsheka...@gmail.com> wrote: > Hello Everyone, > > I am encountering trouble running Spark applications when I shut down my > EC2 instances. Everything else seems to work except Spark. When I try > running a simple Spark application, like sc.parallelize() I get the message > that hdfs name node is in safemode. > > Has anyone else had this issue? Is there a proper protocol I should be > following to turn off my spark nodes? > > Thank you! > > >
