Member since
09-23-2015
151
Posts
110
Kudos Received
50
Solutions
My Accepted Solutions
Title | Views | Posted |
---|---|---|
660 | 08-12-2016 04:05 AM | |
1342 | 08-07-2016 03:58 AM | |
637 | 07-27-2016 06:24 PM | |
1142 | 07-20-2016 03:14 PM | |
749 | 07-18-2016 12:54 PM |
08-12-2016
04:05 AM
Do not discuss certification exams tasks in a public forum. This violates the agreement you accepted when you registered for the exam. If you have any questions or issues, please send an email to certification@hortonworks.com
... View more
08-07-2016
03:58 AM
3 Kudos
The Spark exam is currently on HDP 2.4, which is Spark 1.6.
... View more
07-27-2016
06:24 PM
No - there is no Java on the HDPCD exam. It is Pig, Hive, Sqoop and Flume, and to be fully prepared you should be able to perform all of the exam objectives listed here: http://hortonworks.com/training/certification/hdpcd-certification/
... View more
07-20-2016
03:14 PM
I wonder if they were just having system errors at the time you tried to login. I just logged in fine. If you are still having the issue, you will need to contact PSI. They will be able to assist: http://it.psionline.com/contact-us/support/
... View more
07-18-2016
12:54 PM
4 Kudos
There is no IDE available on the Spark exam. You can use pyspark or spark-shell to execute your code. You do NOT have access to google or the internet. You DO have access to the Spark doc pages, the Python and Scala doc pages, and the Hortonworks documentation as well. There is currently no practice exam for the Spark exam. If you need experience writing Spark applications on HDP using Python or Scala, I recommend downloading the Sandbox and working through the Hortonworks Spark tutorials.
... View more
06-23-2016
07:42 PM
Just a couple of helpful tips: The tab is the default delimiter, so you can just use LOAD '/user/horton/flightdelays_clean' The answers to the Practice Exam tasks are on the Ubuntu client in the /home/horton/solutions folder.
... View more
06-22-2016
04:00 AM
Thanks - this is exactly what is happening. FYI: I think it also affecting Pig. Is there a way to set the timeout to be a much shorter value?
... View more
06-21-2016
11:33 PM
1 Kudo
I am running HPD 2.4.0.0 installed with Hive 1.2. If I exit the Hive CLI using Ctrl+c, then try to run Hive again immediately, it takes about 10 minutes for the Hive prompt to appear. It just hangs right here: root@node1 bin # hive
WARNING: Use "yarn jar" to launch YARN applications.
Logging initialized using configuration in file:/etc/hive/conf/hive-log4j.properties
Any thoughts on why this may be occurring? BTW, if I exit Hive using the "exit;" command, everything is fine and I can startup Hive again right away with no issues.
... View more
Labels:
- Labels:
-
Apache Hive
06-21-2016
09:37 PM
4 Kudos
List the contents of the following folder: # /usr/hdp/current You will see the version number of HDP (plus the version of every component). For example, I have HPD 2.3.0.0-2557 on the machine below: [root@namenode ~]# ls -la /usr/hdp/current/
total 8
drwxr-xr-x 2 root root 4096 Jul 26 2015 .
drwxr-xr-x 4 root root 4096 Jul 26 2015 ..
lrwxrwxrwx 1 root root 30 Jul 26 2015 accumulo-client -> /usr/hdp/2.3.0.0-2557/accumulo
lrwxrwxrwx 1 root root 30 Jul 26 2015 accumulo-gc -> /usr/hdp/2.3.0.0-2557/accumulo
lrwxrwxrwx 1 root root 30 Jul 26 2015 accumulo-master -> /usr/hdp/2.3.0.0-2557/accumulo
lrwxrwxrwx 1 root root 30 Jul 26 2015 accumulo-monitor -> /usr/hdp/2.3.0.0-2557/accumulo
lrwxrwxrwx 1 root root 30 Jul 26 2015 accumulo-tablet -> /usr/hdp/2.3.0.0-2557/accumulo
lrwxrwxrwx 1 root root 30 Jul 26 2015 accumulo-tracer -> /usr/hdp/2.3.0.0-2557/accumulo
lrwxrwxrwx 1 root root 27 Jul 26 2015 atlas-server -> /usr/hdp/2.3.0.0-2557/atlas
lrwxrwxrwx 1 root root 28 Jul 26 2015 falcon-client -> /usr/hdp/2.3.0.0-2557/falcon
lrwxrwxrwx 1 root root 28 Jul 26 2015 falcon-server -> /usr/hdp/2.3.0.0-2557/falcon
lrwxrwxrwx 1 root root 27 Jul 26 2015 flume-server -> /usr/hdp/2.3.0.0-2557/flume
lrwxrwxrwx 1 root root 28 Jul 26 2015 hadoop-client -> /usr/hdp/2.3.0.0-2557/hadoop
lrwxrwxrwx 1 root root 33 Jul 26 2015 hadoop-hdfs-client -> /usr/hdp/2.3.0.0-2557/hadoop-hdfs
lrwxrwxrwx 1 root root 33 Jul 26 2015 hadoop-hdfs-datanode -> /usr/hdp/2.3.0.0-2557/hadoop-hdfs
lrwxrwxrwx 1 root root 33 Jul 26 2015 hadoop-hdfs-journalnode -> /usr/hdp/2.3.0.0-2557/hadoop-hdfs
lrwxrwxrwx 1 root root 33 Jul 26 2015 hadoop-hdfs-namenode -> /usr/hdp/2.3.0.0-2557/hadoop-hdfs
lrwxrwxrwx 1 root root 33 Jul 26 2015 hadoop-hdfs-nfs3 -> /usr/hdp/2.3.0.0-2557/hadoop-hdfs
lrwxrwxrwx 1 root root 33 Jul 26 2015 hadoop-hdfs-portmap -> /usr/hdp/2.3.0.0-2557/hadoop-hdfs
lrwxrwxrwx 1 root root 33 Jul 26 2015 hadoop-hdfs-secondarynamenode -> /usr/hdp/2.3.0.0-2557/hadoop-hdfs
lrwxrwxrwx 1 root root 35 Jul 26 2015 hadoop-httpfs -> /usr/hdp/2.3.0.0-2557/hadoop-httpfs
lrwxrwxrwx 1 root root 38 Jul 26 2015 hadoop-mapreduce-client -> /usr/hdp/2.3.0.0-2557/hadoop-mapreduce
lrwxrwxrwx 1 root root 38 Jul 26 2015 hadoop-mapreduce-historyserver -> /usr/hdp/2.3.0.0-2557/hadoop-mapreduce
lrwxrwxrwx 1 root root 33 Jul 26 2015 hadoop-yarn-client -> /usr/hdp/2.3.0.0-2557/hadoop-yarn
lrwxrwxrwx 1 root root 33 Jul 26 2015 hadoop-yarn-nodemanager -> /usr/hdp/2.3.0.0-2557/hadoop-yarn
lrwxrwxrwx 1 root root 33 Jul 26 2015 hadoop-yarn-resourcemanager -> /usr/hdp/2.3.0.0-2557/hadoop-yarn
lrwxrwxrwx 1 root root 33 Jul 26 2015 hadoop-yarn-timelineserver -> /usr/hdp/2.3.0.0-2557/hadoop-yarn
lrwxrwxrwx 1 root root 27 Jul 26 2015 hbase-client -> /usr/hdp/2.3.0.0-2557/hbase
lrwxrwxrwx 1 root root 27 Jul 26 2015 hbase-master -> /usr/hdp/2.3.0.0-2557/hbase
lrwxrwxrwx 1 root root 27 Jul 26 2015 hbase-regionserver -> /usr/hdp/2.3.0.0-2557/hbase
lrwxrwxrwx 1 root root 26 Jul 26 2015 hive-client -> /usr/hdp/2.3.0.0-2557/hive
lrwxrwxrwx 1 root root 26 Jul 26 2015 hive-metastore -> /usr/hdp/2.3.0.0-2557/hive
lrwxrwxrwx 1 root root 26 Jul 26 2015 hive-server2 -> /usr/hdp/2.3.0.0-2557/hive
lrwxrwxrwx 1 root root 35 Jul 26 2015 hive-webhcat -> /usr/hdp/2.3.0.0-2557/hive-hcatalog
lrwxrwxrwx 1 root root 27 Jul 26 2015 kafka-broker -> /usr/hdp/2.3.0.0-2557/kafka
lrwxrwxrwx 1 root root 26 Jul 26 2015 knox-server -> /usr/hdp/2.3.0.0-2557/knox
lrwxrwxrwx 1 root root 28 Jul 26 2015 mahout-client -> /usr/hdp/2.3.0.0-2557/mahout
lrwxrwxrwx 1 root root 27 Jul 26 2015 oozie-client -> /usr/hdp/2.3.0.0-2557/oozie
lrwxrwxrwx 1 root root 27 Jul 26 2015 oozie-server -> /usr/hdp/2.3.0.0-2557/oozie
lrwxrwxrwx 1 root root 29 Jul 26 2015 phoenix-client -> /usr/hdp/2.3.0.0-2557/phoenix
lrwxrwxrwx 1 root root 29 Jul 26 2015 phoenix-server -> /usr/hdp/2.3.0.0-2557/phoenix
lrwxrwxrwx 1 root root 25 Jul 26 2015 pig-client -> /usr/hdp/2.3.0.0-2557/pig
lrwxrwxrwx 1 root root 34 Jul 26 2015 ranger-admin -> /usr/hdp/2.3.0.0-2557/ranger-admin
lrwxrwxrwx 1 root root 32 Jul 26 2015 ranger-kms -> /usr/hdp/2.3.0.0-2557/ranger-kms
lrwxrwxrwx 1 root root 37 Jul 26 2015 ranger-usersync -> /usr/hdp/2.3.0.0-2557/ranger-usersync
lrwxrwxrwx 1 root root 28 Jul 26 2015 slider-client -> /usr/hdp/2.3.0.0-2557/slider
lrwxrwxrwx 1 root root 27 Jul 26 2015 spark-client -> /usr/hdp/2.3.0.0-2557/spark
lrwxrwxrwx 1 root root 27 Jul 26 2015 spark-historyserver -> /usr/hdp/2.3.0.0-2557/spark
lrwxrwxrwx 1 root root 27 Jul 26 2015 sqoop-client -> /usr/hdp/2.3.0.0-2557/sqoop
lrwxrwxrwx 1 root root 27 Jul 26 2015 sqoop-server -> /usr/hdp/2.3.0.0-2557/sqoop
lrwxrwxrwx 1 root root 27 Jul 26 2015 storm-client -> /usr/hdp/2.3.0.0-2557/storm
lrwxrwxrwx 1 root root 27 Jul 26 2015 storm-nimbus -> /usr/hdp/2.3.0.0-2557/storm
lrwxrwxrwx 1 root root 41 Jul 26 2015 storm-slider-client -> /usr/hdp/2.3.0.0-2557/storm-slider-client
lrwxrwxrwx 1 root root 27 Jul 26 2015 storm-supervisor -> /usr/hdp/2.3.0.0-2557/storm
lrwxrwxrwx 1 root root 25 Jul 26 2015 tez-client -> /usr/hdp/2.3.0.0-2557/tez
lrwxrwxrwx 1 root root 31 Jul 26 2015 zookeeper-client -> /usr/hdp/2.3.0.0-2557/zookeeper
lrwxrwxrwx 1 root root 31 Jul 26 2015 zookeeper-server -> /usr/hdp/2.3.0.0-2557/zookeeper
... View more
06-20-2016
01:01 PM
1 Kudo
Got it! No - that's not really anything we have that is in any kind of public-facing format.
... View more
06-20-2016
12:54 PM
Owning a certification has a certain degree of privacy protected by laws that vary by country. We can not share who is certified.
... View more
06-02-2016
11:14 AM
You should be able to implement both types of joins in Java: map-side and reduce-side.
... View more
06-01-2016
02:44 PM
The HDPCA certification and digital badge are tied to a version of HDP used when you took the exam. So if you recently passed it, that would be HDP 2.3. You will always hold this certification, but after a couple of years it will become out of date as the framework evolves.
... View more
05-31-2016
04:39 PM
Yes - you can run the scripts however you like. Keep in mind there may be a task that requires you to use Tez. But if nothing is mentioned specifically in the task instructions, then you can run your Pig and Hive scripts using Tez or not. I would recommend using Tez though for every task when applicable. Like you said - why waste precious exam time. I will take offense to the "weak machine" comment. The instances we use are extremely large for the small amount of processing that happens on them - c3.4xlarge EC2 instances. The datasets on the exam are purposely small so that time is not wasted in processing a lot of data. The longest queries you run will take less than 90 seconds, and that is w/out using Tez.
... View more
05-22-2016
01:09 PM
@Sayali Desai - +1 for Geoffrey's comment: the forum is not the place to get resolution for exam issues like this. Please send an email to certification@hortonworks.com. This will open a support ticket and you will get assistance right away. They will issue you a free credit so you can register again.
... View more
05-18-2016
01:35 PM
1 Kudo
@Fazil Aijaz Yes - there are shortcuts to the Pig, Hive, Sqoop and Flume docs. Look for the shortcuts on the desktop of the VM. The real exam environment has two tabs: one with a full desktop, and one with a terminal screen. If you just see an SSH shell into a terminal screen, then you are viewing the wrong tab.
... View more
05-17-2016
01:07 PM
@Sayali Desai - good questions, and these answers apply to all of our exams: 1. If you get disconnected, you simply reload the webpage that the exam is on. If you lose that page, you log back in to examslocal.com and re-launch the exam from there. 2. If you are facing lag during the practice exam, then you will likely get the same lag during the real exam. The lag is due to your internet connection either not being fast enough or consistent enough. VNC is a stream of images, and anytime your internet is slow or drops a connection to the VNC server, it creates the appearance of lag (even though the VM is running fine behind the scenes). If this happens, please let the exam proctor know. He/she will give you more time to complete the exam. TIP: If your internet is affecting your ability to accomplish anything on the exam, or if you are experiencing any type of technical issues with your HDP cluster or environment, let the proctor know. If it's a cluster issue, they will reach out to our technical support team to help try to fix the issue. If any problems can not be resolved in a timely fashion, you can simply stop the exam and reschedule it again.
... View more
05-13-2016
02:31 PM
1 Kudo
@Hemant Javeri - you must follow the task instructions as stated in the exam. The instructions will clearly state the filename that you are supposed to save your query or code in. For example, task #3 might tell you to save your Hive query in a text file named /home/horton/solutions/task3 on the local filesystem. We do not care how you write or execute the script - you can use the Hive shell, Hive View in Ambari, write the query in a text editor using vi or gedit, etc. But you must run the script, it must generate the desired output, and you must save the query or code in the specified text file.
... View more
05-13-2016
02:25 PM
FWIW: we have changed the exam code from "hdp-cp-24" to "HDPCD", so now when you go to examslocal.com you should see "Hortonworks: HDP Certified Developer (HDPCD)"
... View more
05-13-2016
02:22 PM
@Shikha Verma - The MySQL instance is running on a machine called "namenode", not localhost. If you want to run the mysql client, you should SSH onto namenode first: $ ssh root@namenode The password is "hadoop". Once you are on the namenode, then you can run mysql:
# mysql --user root -p That password is also "hadoop". Let me know if that works.
... View more
05-12-2016
12:24 PM
We are doing some maintenance behind-the-scenes on the registration process for the HDPCD exam. You will be able to register for the exam today after 3:00 pm CDT.
... View more
05-10-2016
06:07 PM
@Sayan Khasnabis - Hortonworks got a brand new website last month, and some of the pages got out of sync. The details for the HDPCD exam are available here and everything is current: http://hortonworks.com/training/certification/hdpcd-certification/
... View more
05-10-2016
12:28 PM
Hi Fazil, If you do not have a good, consistent internet connection, then you will experience lag, and there really isn't anything we can do about it. It certainly is helpful to have a fast connection, but consistency is just as important. If your connection is dropping packets, then the VNC stream of images will create a lag effect. The VM itself is running fine behind the scenes, but clicking the mouse and typing can feel unresponsive. We realize this can happen, so if you do experience any type of issue during the exam, please let the exam proctor know. The proctors will give you as much extra time as you need to make up for any time lost with a lag experience. The copy/paste issue has been resolved, and my comment about Pig is make sure you understand how Pig loads raw data and how to convert that into proper data types before attempting to use that data. Let me know if you have any other questions.
... View more
04-27-2016
12:23 AM
The number of tasks is subject to change at any time, as is the passing score. Right now the exam has 7 tasks and you must complete 5 successfully to pass.
... View more
04-26-2016
07:03 PM
Try this: 1. Run /home/horton/start_all_services.sh 2. Wait 5 minutes 3. If Hadoop services are not started after 5 minutes, terminate your EC2 instance and create a new one because something failed in your VM
... View more
04-26-2016
06:52 PM
Did you try this: ssh root@namenode "ambari-agent restart"
... View more
04-21-2016
01:44 PM
@Davide Isoardi - the HDF certification will be available in June. I will update the website - thank you for pointing that out.
... View more
04-19-2016
09:48 PM
@Anoosha Shetty You should post this as a new question, instead of changing subjects on an existing question.
... View more