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requirement for ACLs

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Super Collaborator

I have a document showing how to set ACLs in hadoop but it has a pre-requisite of setting the following policy. but this policy is missing from my HDP 2.5 ?

set the "dfs.namenode.acls.enabled" to true (HDFS configs).

1 ACCEPTED SOLUTION

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Super Collaborator
By default, ACLs are disabled, so you'll have to add the property to HDFS service.
  1. In Ambari, select the HDFS service.
  2. Select the Configs tab.
  3. Find or scroll to "Custom hdfs-site"
  4. Click Add Property.
  5. Enter the value: dfs.namenode.acls.enabled=true
  6. Save your changes and add a comment.

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3 REPLIES 3

avatar
Super Collaborator
By default, ACLs are disabled, so you'll have to add the property to HDFS service.
  1. In Ambari, select the HDFS service.
  2. Select the Configs tab.
  3. Find or scroll to "Custom hdfs-site"
  4. Click Add Property.
  5. Enter the value: dfs.namenode.acls.enabled=true
  6. Save your changes and add a comment.

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New Contributor

Do I need to restart the services.I added the below property but no luck.

 

dfs.namenode.acls.enabled=true

 

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Read below very good article about HDFS Acls:

https://hortonworks.com/blog/hdfs-acls-fine-grained-permissions-hdfs-files-hadoop/

As mentioned by @bhagan, Acls are turned off by default. You would need to enable them by setting dfs.namenode.acls.enabled=true in hdfs-site