@Anurag Mishra If the response answered your question can you take time an login and "Accept" the answer and close the thread so other members can use it as a solution ... View more

Properly setting up the nifi.security.identity.mapping.pattern.kerb and nifi.security.identity.mapping.pattern.dn fixed the problem. Also, while debugging these kind of problems, it's best to delete ranger plugin cache (under /etc/ranger/SERVICE_NAME/policycache/) to ensure that there are no communication problem between NiFi and Ranger. ... View more

One is large environment with 20+ pb in size and data is completely different from other environment data, and reasons for different lakes are they both fall in different internal departments and data is also different and customers are also different, again depends on the data these cluster(s) servers located in different data centers and one is open for company wide enterprise network and others open for an internal network within enterprise network. ... View more

There are 2 problems in the Ambari installation document for Ubuntu 16 at https://docs.hortonworks.com/HDPDocuments/Ambari-2.6.2.0/bk_ambari-installation/content/download_the_ambari_repo_ubuntu16.html wget -O /etc/apt/sources.list.d/ambari.list http://public-repo-1.hortonworks.com/ambari/ubuntu16/2.x/updates//ambari.list apt-key adv --recv-keys --keyserver keyserver.ubuntu.com B9733A7A07513CAD apt-get update As both Geoffrey and Jay had pointed out, the first sample command missing version number and document did not instruct to insert that for the execution For 2nd command to retrieve Linux key, the given format will result in timeout due to the syntax used. root@msl-dpe-perf77:/usr/local/Ambari# apt-key adv --recv-keys --keyserver keyserver.ubuntu.com B9733A7A07513CAD Executing: /tmp/tmp.1enMMyqYWS/gpg.1.sh --recv-keys --keyserver keyserver.ubuntu.com B9733A7A07513CAD gpg: requesting key 07513CAD from hkp server keyserver.ubuntu.com gpg: keyserver timed out gpg: keyserver receive failed: keyserver error root@msl-dpe-perf77:/usr/local/Ambari# Following syntax will resolve this error root@msl-dpe-perf77:/usr/local/Ambari# apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv B9733A7A07513CAD Executing: /tmp/tmp.PQTyyilAKr/gpg.1.sh --keyserver hkp://keyserver.ubuntu.com:80 --recv B9733A7A07513CAD gpg: requesting key 07513CAD from hkp server keyserver.ubuntu.com gpg: key 07513CAD: "Jenkins (HDP Builds) <jenkin@hortonworks.com>" not changed gpg: Total number processed: 1 gpg: unchanged: 1 root@msl-dpe-perf77:/usr/local/Ambari# ... View more