You are running Hadoop cluster with all monitoring facilities properly configured. Which
scenario will go undeselected?
A.
The NameNode goes down
B.
A DataNode is disconnected from the cluster
C.
Map or reduce tasks that are stuck in an infinite loop
D.
MapReduce jobs are causing excessive memory swaps
E.
HDFS is almost full
C
0
0
C is correct.
0
0
C is incorrect.
A is the correct. Data is inaccessible.
0
0
A
0
0
A
0
0
A.
0
0