You are running a Hadoop cluster with all monitoring facilities properly configured. Which scenario
will go undetected?
A.
Map or reduce tasks that are stuck in an infinite loop.
B.
HDFS is almost full.
C.
The NameNode goes down.
D.
A DataNode is disconnected from the cluster.
E.
MapReduce jobs that are causing excessive memory swaps.
in YARN i think answer doesn’t make sense, since after certain time interval if there is no progress from container, container will be killed by appmaster.
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I have the same idea. A
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