Hadoop DP Notes
Home
Contact Us
Search
What happens to job tracker when Namenode is down?
When Namenode is down, your cluster is OFF, this is because Namenode is the single point of failure in HDFS.
Newer Post
Older Post
Home
What are the main components of Mapreduce Job ?
Main driver class which provides job configuration parameters. Mapper class which must extend org.apache.hadoop.mapredu...
TO_CHAR
This will be used to extract various date formats. The available date formats as follows. Syntax: to_char ( date , fo...