Assuming you’re not running HDFS Federation, what is the maximum number of NameNode
daemons you should run on your cluster in order to avoid a “split-brain” scenario with your
NameNode when running HDFS High Availability (HA) using Quorum-based storage?
A.
Two active NameNodes and two Standby NameNodes
B.
One active NameNode and one Standby NameNode
C.
Two active NameNodes and on Standby NameNode
D.
Unlimited. HDFS High Availability (HA) is designed to overcome limitations on the number of
NameNodes you can deploy
B
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B is corect
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B
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B one active Namenode and one standby Namenode
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B is correct
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Absolutely B
HDFS federation allows CLUSTER to have multiple NN
will overcome the HDFS Bottlenecks /Limitations
– Namespace availability
– Performance
– Isolation
– Scalability
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D
Please serach : “between the Active and Standby NameNodes.” on
https://hadoop.apache.org/docs/stable/hadoop-project-dist/hadoop-hdfs/HDFSHighAvailabilityWithQJM.html
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Currently only two — one active and one standby namenodes are allowed. B is corrct.
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B. One active NameNode and one Standby NameNode
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B is the correct answer.
Cloudera’s explanation founf here:
https://www.cloudera.com/documentation/enterprise/5-5-x/topics/cdh_hag_hdfs_ha_intro.html
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Hi,
Has anyone given the exam recently? Is this dump valid?
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B
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