question Re: Retrieving HDFS Groups and users using programming in Support Questions

Retrieving HDFS Groups and users using programming

phir1 — Thu, 08 Sep 2022 20:24:24 GMT

Hello,

Is there a way to retrieve all HDFS groups and respective users, in Cloudera, using Java or Scala/Spark code?

In other words, I’m looking for Java/Scala code equivalent to "hdfs groups <user1>, <user2>, ...".

Ideally, the code would run in Zeppelin.

Many thanks.

Re: Retrieving HDFS Groups and users using programming

ale241290xdf — Thu, 08 Sep 2022 19:57:58 GMT

@phir1
I can think of something like a for maybe:
# for i in `cat <users_file>`; do hdfs groups $i; done

Re: Retrieving HDFS Groups and users using programming

James G — Thu, 08 Sep 2022 20:02:34 GMT

Try this

hdfs groups hdfs solr

Re: Retrieving HDFS Groups and users using programming

phir1 — Thu, 08 Sep 2022 20:04:49 GMT

Hi,

thank you for your suggestion, but I’m looking for example Java or Scala code that uses the Hadoop or Cloudera API, instead of scripting the « hdfs » tool on Linux.