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Question 26/72
You want to set up access control lists on your NameNode in your Big Data Appliance. However, when you try to do so, you get an error stating "the NameNode disallows creation of ACLs." What is the cause of the error?
Correct Answer: D
Explanation/Reference:
To use ACLs, first you'll need to enable ACLs on the NameNode by adding the following configuration property to hdfs-site.xml and restarting the NameNode.
< property>
< name>dfs.namenode.acls.enabled</name>
< value>true</value>
< /property>
References: https://hortonworks.com/blog/hdfs-acls-fine-grained-permissions-hdfs-files-hadoop/
To use ACLs, first you'll need to enable ACLs on the NameNode by adding the following configuration property to hdfs-site.xml and restarting the NameNode.
< property>
< name>dfs.namenode.acls.enabled</name>
< value>true</value>
< /property>
References: https://hortonworks.com/blog/hdfs-acls-fine-grained-permissions-hdfs-files-hadoop/
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