Hi @Vidya SK - the Java exam currently consists of a single task, but that is subject to change at any time. ... View more

@Vidya SK The connection URL for the practice exam is: --connect jdbc:mysql://namenode/flightinfo There is nothing special you need to do prior to running the Sqoop command. The environment is configured properly for Sqoop to connect to MySQL. The entire working Sqoop command can be found in the /home/horton/solutions/ folder. ... View more

Hi @Gurjinder Singh - the exams are currently $250 per attempt. We have an FAQ page that contains more details: http://hortonworks.com/hdp-certified-developer-faq-page/ ... View more

@Daniel Hendrix Using the Hortonworks Community Connection is perfect - it allows others who may have similar issues to find answers quickly. I appreciate you sharing these typos. It looks like there is a minor disconnect between the data files in the practice exam and the solutions provided. We will take a look at this the next time we update the practice exam. Keep in mind there are two main goals of the practice exam: To become familiar with the environment that the real exam uses To get a sense of the types of tasks you will be asked to perform It is not meant to be an all-inclusive study guide. For a candidate to truly be prepared for the HDPCD exam, you should be able to complete all of the tasks listed in the exam objectives: http://hortonworks.com/training/class/hdp-certified-developer-hdpcd-exam/ Let me know if you have any other questions or issues. Thanks, Rich ... View more

That is correct. We are not interested in "how" you do something - only that you can accomplish it. For example, you may be asked to write a Pig script that satisfies a set of criteria. We don't care what your code looks like, as long you use Pig and the output satisfies all the given criteria. ... View more

Everything is configured perfectly fine on the real exam for Sqoop to work. It's also configured correctly on the practice exam. If you are having trouble getting the command to work, the solution is in the /home/horton/solutions folder on the Ubuntu instance. Try running the solution. If that fails, please share the error and I can help you from there. ... View more

Hi @Saurabh Singh The only applications running on your local machine during the exam are Chrome and your camera. More important than the processor is your internet connection. You need a very good, consistent internet connection to take the exam. The OS does not matter - Windows is fine. If you want to test out your system, I would highly recommend taking the practice exam. It uses a similar environment and the same VNC protocol of the real exam. You can not take the exam at a pro-metric testing center - the exam is only available online on your own computer. Let me know if you have any more questions. Thanks, Rich ... View more

Hi @Saurabh Singh The pattern of the exam is hands-on, performance based. You will be given an HDP cluster and a collection of tasks. Each task is worth 1 point, and the passing score appears in the exam instructions. For example, the exam might have 7 tasks and you need to get 5 correct to pass. (That is just an example and your actual number of tasks may vary.) You should be able to perform all of the tasks in the exam objectives listed here: http://hortonworks.com/training/class/hdp-certified-developer-hdpcd-exam/ I highly recommend you attempt the practice exam, which uses a similar environment as the real exam and contains tasks similar to the real exam: http://hortonworks.com/wp-content/uploads/2015/02/HDPCD-PracticeExamGuide1.pdf We have an FAQ page that contains some useful certification details: http://hortonworks.com/hdp-certified-developer-faq-page/ Let me know if you have any other questions. ... View more

To use Flume, you do not need to edit the flume.conf file. The better way to write a Flume agent is to create your own Flume config file (and save it in whatever folder you like). Then when you start the Flume agent you point it to your config file with the -f flag; for example: flume-ng agent -n my_agent_name -c conf -f my_flume_agent.conf ... View more

If you startup one of our practice exams and the cluster services are not running, here are some things to try first: 1. Run the start_all_services.sh script. You can watch the progress of this script in Ambari - it uses the Ambari REST API to start all HDP services. 2. Login to Ambari and try to start services that way 3. Restart the ambari-agent process on each node in the cluster (password for root is hadoop), then run start_all_services.sh again: ssh root@namenode "ambari-agent restart" ssh root@resourcemanager "ambari-agent restart" # This only applies the HDPCA exam ssh root@hiveserver "ambari-agent restart" # This only applies to the HDPCA exam If none of the steps above fix the issue, then it is likely an issue with the Docker containers not starting properly. Since you do not have root access on your practice exam, the quickest solution is to simply terminate your EC2 instance and startup another one. -Rich ... View more

Hi Vidya, It is really not a big enough instance. The exam uses c3.4xlarge, which is overkill. You should get decent performance somewhere in the middle - maybe try a c3.2xlarge. -Rich ... View more

Hi Daniel, There are no WebHDFS questions on the exam. The exam objectives are listed here: http://hortonworks.com/training/class/hdp-certified-developer-hdpcd-exam/ Have you tried the practice exam? It contains tasks similar to the real exam, and more importantly you get to see what the exam environment is like: http://hortonworks.com/wp-content/uploads/2015/02/HDPCD-PracticeExamGuide1.pdf Thanks, Rich Raposa Certification Manager ... View more

OK - I think I answered my own question: sorry for the confusion. Ambari 2.2.x appears to be smarter than its predecessors. The reason my initial REST request "failed" was because HDFS was already running, so Ambari simply ignored the request. REST API requests used to always show up in the "Background Operations" window, but now they do not if the service doesn't need starting. That decision seems fine with me - just caught me off guard! Thanks for providing feedback. -Rich ... View more