Hadoop environment safe node status

4 Answer(s)


Whenever the Hadoop starts up it puts HDFS in safe mode. During the safe mode, NameNode collects and builds the Metadata. Wait for few minutes and try again.

Hi Meena,
When you shutdown the machine before stopping the hadoop services. That force the namenode to go in safemode. To leave the safemode, please use the following command :
- hadoop dfsadmin -safemode leave

The last command you gave works.
hadoop dfsadmin -safemode leave
Thanks

Hi Meena,
Thanks for the update.
Please make sure to stop all the hadoop services before power-off the machine to avoid this problem in future.
Thanks.