Thanks .. sudo su - hdfs hdfs dfs -mkdir /user/root hdfs dfs -chown root:hdfs /user/root got the answer as well from another thread ... View more

In nifi.properties, set the following to false: nifi.flowcontroller.autoResumeState=true This forces everything to a stopped state when Nifi restarts, rather than attempting to resume the previous states. ... View more

This is due to this issue https://issues.apache.org/jira/browse/NIFI-990 which fixed the fact that the failure relationship was mistakenly not provided before. When importing templates made against the previous version they will not have that relationship checked since it wasn't there. So it will show as invalid until you check it as auto-terminate or use it. You may wish to recreate the template. ... View more

Steps to build a release version of Hortonworks component. Component details in question. Component Name = Hadoop Release Version = 2.3.4.0 Tools Needed: Maven = 3.1.1 Java = 1.7+ Steps: 1. Ensure Java and Maven is in path. 2. Get the code to your local linux machine, say workspace. $ git clone git@github.com:hortonworks/hadoop-release.git -b HDP-2.3.4.0-tag Hortonworks maintain <component>-release tags for all the public releases. 3. Point maven settings.xml to http://repo.hortonworks.com/content/groups/public/ 4. Go to the synced workspace and issue below command $ maven clean -DskipTests -DskipITs install Cheers, -Vijay. ... View more

Hi Artem, PHD-3.0 is equivalent to HDP-2.2.4, so a script referring to correct paths should work. What do you mean by "hdp memory script" on Yarn? Edit: phd-configuration-utils.py exists on PHD-3.0, here is a link, scroll down to "PHD Utility Script". Example python phd-configuration-utils.py -c 16 -m 64 -d 4 -k True where "-c" is the number of cores, "-m" is RAM on worker nodes, "-d" is number of disks, and final Boolean is HBase yes/no. ... View more

On the exam you should always use Ambari when possible, especially for tasks like enabling NameNode HA. ... View more