Hello can any one please help on the below issue I am getting while creating CF's. I have created a binary table in the maprdb and then trying to create the column family but I am getting the below error. ERROR (22) - Parameter jsonpath is required for non default column family. Thank you for your time in advance. MapR DB CLI TutorialMapR… Show more
Hi , I am new to Map R . I wanted to read data from Map R and write data to Map R using c# Program . What are the options available to connect and integrate with Map R using c# . If you can point me to the correct tutorial or documentation link that will be helpful . Thanks , Regards, S.
At node verification phase, DNS inconsistent warning appears. It shows "One or more hostnames failed forward/reverse Dns check". I tried to resolve this issue but the issue wasn't resolve. So, I tried installing MAPR with this warning. Installation fails after some time. It is seen slave2.aptus.com was not able to install properly. I have… Show more
Hello, We have a MapR 3-Node cluster, We installed 5.2.2 MEP Pack. And we are able to get the login page, when we are giving the login credentials we are not able to get logged in to get MCS or HUE. It is showing that the given login credentials are given invalid. But we are giving the same credentials which we give every time. We are unable to… Show more
It has been over a year since I started MapR courses. I would like to start over without changing my login ID. Is that possible? If I go through the courses again, the quizzes will not be the same as if taking for the first time.
Hi John Endress Welcome back! Since your question is about MapR courses, I have moved it to MapR Academy community for more students like you to learn about your question and the answer. To answer your question, you should able to log in using the same login as when you set up the account as long as you remember the password. You should…
Now that you have experienced how easy it is to query simple and complex data with Drill, what are your initial thoughts on how you can use Drill to speed up your data analysis or to query data that you could not access before? Will you query JSON files or other complex data?
Log into the MapR Community to add to course discussions. Connect with and learn from other students as well as MapR subject matter experts. Course Discussions Essentials (ESS 100) Lesson 1 – Describe your big data problem Essentials (ESS 102) Lesson 6 – How will you use the MapR Converged Data Platform? Essentials (ESS 200) – What features…
Hi, Below is a sample question from MapR Certified Cluster Administrator Study Guide.Anything wrong here with answers . I think answer should be A,B MCCA Study Guide - MapR Certified Cluster Administrator Q4. What two (2) things does the POSIX client enable you to do that you wouldn’t be able to do if you hadn’t installed it? A. Use… Show more
If i a container id, how i list all the fids associated to that container?
Understood - thanks. Here is one way to do it - if you have billions of files, this isn't going to be the way to go. But it will work if it's manageable. When you use hadoop mfs -ls <path>, the output show a three-part FID. The first part is the ID of the container where the file is stored. The second part is the inode of the file itself,…
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Think about the 3 Vs of big data: volume, velocity, and variety. What features make your data difficult to store, process, or describe? Share specific stories of how you have struggled with a big data problem.
Our big data problem: In a traditional retail bank, keep all interactions of stored account holders to conduct behavioral studies. About 3 V's: Velocity: We need to monitor any customer interaction with the bank, for any channel on which it can conduct a bank transaction. Variety: We need to collect data from our web browser (semi-structured…