Explanation:Hadoop includes several managed beans (MBeans), which expose Hadoop metrics to JMX-aware applications. 10. NameNode is monitored and upgraded in a __________ transition.
A. safemode
B. securemode
C. servicemode
D. None of the mentioned
Answer:A
Explanation:Hadoop includes several managed beans (MBeans), which expose Hadoop metrics to JMX-aware applications. 10. NameNode is monitored and upgraded in a __________ transition.
A. safemode B. securemode C. servicemode D. None of the mentioned
Explanation:The HDFS service has some unique functions that may result in additional information on its Status and Instances pages. Sanfoundry Global Education & Learning Series – Hadoop.