question Re: requirement for ACLs in Archives of Support Questions (Read Only)

requirement for ACLs

aliyesami — Sat, 27 May 2017 02:05:13 GMT

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).

Re: requirement for ACLs

bhagan — Sat, 27 May 2017 02:48:52 GMT

By default, ACLs are disabled, so you'll have to add the property to HDFS service.

In Ambari, select the HDFS service.
Select the Configs tab.
Find or scroll to "Custom hdfs-site"
Click Add Property.
Enter the value: dfs.namenode.acls.enabled=true
Save your changes and add a comment.

Re: requirement for ACLs

namaheshwari — Sat, 27 May 2017 05:31:27 GMT

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

Re: requirement for ACLs

saurabhcloud — Fri, 06 Dec 2019 07:06:19 GMT

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

dfs.namenode.acls.enabled=true