question Re: Anonymous user requests to access on Hive HDFS files in Archives of Support Questions (Read Only)

Anonymous user requests to access on Hive HDFS files

smartdatabundle — Thu, 04 May 2017 21:47:24 GMT

Hi all, I installed Hive on HDP 2.5. I configured Ranger to allow access to the HDFS path for only hive user. In Audit Ranger, there is an Anonymous user who wants to use /tmp/hive on HDFS. What is the purpose of this Anonymous user ? Thank you for your advice.

Re: Anonymous user requests to access on Hive HDFS files

vperiasamy — Sat, 06 May 2017 00:38:22 GMT

/tmp/hive is used for intermediate data by hive.

Re: Anonymous user requests to access on Hive HDFS files

mqureshi — Sat, 06 May 2017 02:41:06 GMT

@Smart Data

What is the value of hive.server2.authentication in hive-site.xml? Default is NONE. Assuming this is none, and you don't specify a username, driver will default to using "anonymous" as the username.

Re: Anonymous user requests to access on Hive HDFS files

srai1 — Sun, 07 May 2017 05:21:44 GMT

@Smart Data

This link talks about anonymous user: https://cwiki.apache.org/confluence/display/Hive/Setting+Up+HiveServer2. Like @mqureshi stated, if the value for hive.server2.authentication is set to NONE then you'd see the anonymous user come into play.

Also, since you are using ranger, I'd guess that the whole point is to ensure that you have more fine grained control i.e., for each user so impersonation should also be enabled.

Re: Anonymous user requests to access on Hive HDFS files

smartdatabundle — Mon, 15 May 2017 15:53:11 GMT

Thank you for your reply. Indeed, the value is NONE.

Re: Anonymous user requests to access on Hive HDFS files

smartdatabundle — Mon, 15 May 2017 20:31:17 GMT

Thank you for your reply. I will try LDAP mode...