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https://issues.apache.org/jira/browse/HDFS-13505?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16898384#comment-16898384
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Dinesh Chitlangia commented on HDFS-13505:
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[~jojochuang] In Hadoop-2.x, the ACL is disabled by default. So most users who
do not want to enable ACL, don't define the
{{dfs.namenode.acls.enabled=false}} explicitly in their configs.
So, if users would still like to keep ACL disabled after upgrading to
Hadoop-3.x, then they must explicitly define
{{dfs.namenode.acls.enabled=false}} in their configs to avoid it being turned
on by the upgrade.
I think documenting this correctly is critical. Thanks!
> Turn on HDFS ACLs by default.
> -----------------------------
>
> Key: HDFS-13505
> URL: https://issues.apache.org/jira/browse/HDFS-13505
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Ajay Kumar
> Assignee: Siyao Meng
> Priority: Major
> Attachments: HDFS-13505.00.patch, HDFS-13505.001.patch
>
>
> Turn on HDFS ACLs by default.
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