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,…
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…
Hi Is it possible to have the ADM210 lab guide please. I registered before it turned pro but we are just about to upgrade our cluster. I have completed the course but would like to complete the practical too please. Duncan
I just read the announcement about MapR-XD and Suzy Visvanathan's introduction to the product. It would be great to also have a "MapR-XD Essentials" course to learn a little more about its fundamentals, and the differences with other cloud data stores.
Hello Guys, We have a Three-Node Cluster which is up and running, but whereas services are not starting when we tried to start spark shell terminal it is throwing errors. Can someone please help me through this. And also a screenshot of the error. And also here I am attaching the screenshot of MCS where clusters are showing as degraded. … Show more
Hello, I took a look a few months ago on this website and I saw somewhere an option to benefit MapR Academy Pro without paying anything. I wanted to start it right away, but then I had a time issue and I didn't get to it till now (maybe a few weeks ago). Now I can't find this option anymore. It is really gone? Do I have really pay 2250$ to… Show more
How can I report a correction at the ESS1000-SlideGuide.pdf at page 18, slide L1-11 details? Thank you.
I need to know whether we can create a dataframe on top of a Hbase table and then do some transformations and then store the output to folders. I was trying below link SparkSQL and DataFrames But Not sure whether i have to install some additional plugins since it trowing me an error like Dataframe not defined. I am getting below error… Show more
Hello All, We had a three node cluster and it worked fine before, but now I'm unable to login to MCS and when I checked the /opt/mapr/logs/adminuiapp.log it was giving the below results as the node has been deleted. 2017-11-02 11:43:39,727 INFO com.mapr.util.zookeeper.ZKDataRetrieval [Thread-12-EventThread]: Process path:… Show more
Load more items
I am facing the following problems regarding apache drill. If any one knows the answers about there 1. Will we be able to deploy a drill logic inside the spring boot application in the PCF(Pivotal Cloud Foundry). If Possible then please let me know as if i am getting an exception regarding the deployment in the pcf. Then i thought of knowing… Show more