Hadoop MapReduce Fundamentals 1 of 5

[@jsc1227]

Very High quality instruction on the fundmentals of Hadoop. I had very little knowledge of this technology, and can not afford the high priced courses. Thank you again.

[@GrantGeorge]

This is a wonderful introduction to Hadoop MapReduce - I look forward to watching the rest. Thank you so much!

[@venkatkiran5395]

Hi Lynn, this training materials are really good. you did excellent job.

[@luffy4489]

Nicely done! I started my job carrer with hadoop , now involved in storm kafka, zookeeper and other advanced big data technologies

[@654Kamlesh]

Very good teaching technique. I am happy to attend your video. Thanks

[@sodatta11]

Amazing! This is probably the best youtube channel for Hadoop/MapR! Thank You!

[@littlething999]

Great series. Offers great insight and accessibility for Hadoop as a beginner. You are a true hero for making these :D Keep it up!

[@LynnLangit]

thanks for your kind words #KeepLearning

[@RioWaller]

Lynn Langit great job here! I've learned so much from this presentation! Thanks!!

[@LeonLJustice]

This was a great tutorial. I have and will continue to learn alot from you. Thank you so much.

[@pawankumar786]

Thanks alot madam for these videos. #Respect :) and i started subscribing you in youtube

[@rovin002]

Thanks Lyn you have done a wonderful job, got a very good idea.

[@geekboy9754]

Excellent! This is a very useful guide!

[@zg2000tube]

awesome!!! keen to see you back.

[@fndTenorio]

Just logged in to thanks for this great intro!

[@baba-somanath]

@Lynn : Now, I am a fan of yours . Please upload some more videos with more concepts involved. Keep On adding more information in this era. Nice job Done thru such an informative and clear presentation Thank Q in advance. Regards BABA

[@sandipnakrani8941]

Really Nice Tutorial. Thanks for posting

[@rdugge]

Thank you thank you thank you for these great tutorials!

[@SachinPB]

Really Good Tutorial . Thanks for Sharing

[@maaaaaass]

Thanks for sharing your knowledge...

[@KatoMivule]

Thanks for the tutorial - very intuitive.

[@battegovind]

Very nice, thanks for sharing...

[@TheMicro420]

gr8 work! Lynn

[@patrickbailey4692]

This was very helpful. I am organizing a short course on Big Data at the college where I teach. It's oriented more towards a business major to understand some general concepts, but I was hoping to work through some hands-on examples. Thanks for producing this!

[@pengzhao6157]

yes,it is nice

[@pengzhao6157]

很好，很强大

[@anushakishor9327]

Thanks Lynn for sharing the very useful and important points. How about the openings on Hadoop?

[@SPeri6]

Awesome Vid Thanks Lynn

[@LynnLangit]

really glad you enjoyed it, I plan to make more later this year as well

[@vulkn]

Hey, nice tutorial... but i did not get one thing,, at about 24:25 you say they should have a gray square and the name node. Is this gray square some other name node than the one shown as a blue box , or were referring to the secondary name node ?

[@kaipan3188]

very useful!Thanks!

[@maaaaaass]

Awesome

[@sonaldubey5604]

Thanks for this video.

[@82vits]

awesome , its pretty informative

[@LynnLangit]

glad to hear it was helpful, I plan to make more videos on this topic area later this year

[@shikhanshu]

Lang it, Bobby!

[@LynnLangit]

thanks so much, glad you enjoyed it

[@collinsagyekum6734]

Thanks for sharing these great videos Lynn. The clarity was great. I have a question. My background is more in statistical analysis and modeling. I am mostly familiar with SAS and R but not Java or C++. However, I would really like to build my career on hadoop and big data in the future. What are some books, advise you can recommend for me. Thank you.

[@LynnLangit]

You will probably want to focus more on learning a higher level query language - like Hive, Impala (for Cloudera) and/or Mahout, rather than the nitty-gritty of MapReduce programming. There is also a library, called RHadoop, that you can try. I have only tested this in POC, not in production, so I can't really say how well it performs.

[@collinsagyekum6734]

Lynn Langit Thank you very much for the suggestions. I would really help me.

[@dangnabbit1379]

Furthermore, is Hadoop used to chart the demand for Hadoop?

[@rajeshpurwar4406]

highly thankful to you

[@LynnLangit]

Glad to hear it! I am working some new Hadoop content for publication later this year too! #keepLearning

[@mangekyou45rinnegan]

Great! thank you so much!

[@pengzhao6157]

很好，很强大

[@flyYellowBird2]

Hi Lynn thanks for these great videos. I have a question. So one of the core premise of Hadoop HDFS is to bring computation to data but not the other way around. My question is - In real world when a company decides to use Hadoop, do they first transfer all their data into node (HDFS) clusters? So the data is coming to nodes even though only for the first time I guess. Is my understanding correct?

[@LynnLangit]

Glad you are enjoying these videos. The data can be processed from many sources. For on premise installations, the most common source(s) are the HDFS data nodes. However, many Hadoop implementations run in the cloud - for example if using AWS, then customers may use S3 rather than EC2 (compute) + EBS (storage - which would be formatted as HDFS)

[@flyYellowBird2]

Thank you Lynn Langit

[@LynnLangit]

glad you are finding this useful

[@jamesbenedict6480]

Lynn, You are a great presenter of materials! I would have preferred to have seen examples in your presentation. Also, your presentation is a bit fast-paced for people like me....

[@SanjayDas-wz3hj]

Thanks for such a helpful series of hadoop lectures. Would you mind sending me a sample project where hadoop is implemented please?

[@LynnLangit]

Sanjay Das Glad you like this - Here is a simple sample (Word Count) from Cloudera - www.cloudera.com/content/cloudera/en/documentation/HadoopTutorial/CDH4/Hadoop-Tutorial/ht_usage.html

[@SanjayDas-wz3hj]

Lynn Langit Thank you Lady Lynn, the link is too much helpful for my learning. Thanks again

[@siddharthadas86]

Hi Lynn Whenever I try to create the Cloudera using the OracleVM virtualbox, I repeatedly get the error "Failed to open a session for the virtual machine ClouderaTest" and the virtual machine gets terminated. Any solution that you might suggest? Thanks again.

[@ehteshamali5054]

Hey Lynn, Thanks for the series of hadoop lectures they are just amazing! Can you please help me with a project or a proof of concept some thing like that. Thanks

[@LynnLangit]

I am glad that you found this tutorial useful. I am not available for contract work (due to current bookings) until mid Jan 2015.

[@ehteshamali5054]

I am an engineer passed out this year. I will be attending Goldman Sachs interview for big data job. So I wanted to do a project to show my knowledge. I hopefully crack it by watching your lectures :)

[@ehteshamali5054]

*****​ I got selected by IBM, I did not attend the interview that time. But Goldman work culture is admired in IT, once you have Goldman's experience, other companies offer you high salary and people leave.

[@ehteshamali5054]

*****​ I am not into development, I am into infrastructure. I am currently working in India, yes I can see that IBM India is getting many projects and opportunities.

[@ehteshamali5054]

What's you review on JP Morgan?

[@sik6si2o1faan6]

Can anybody tell me where to obtain a copy of the Java code used in this presentation? All the clues I followed lead to dead ends. It is not on the earliest version of CDH4 still available. It may be on an earlier version that Cloudera took down. Does anybody know?

[@pengzhao6157]

i'm learning hadoop

[@SanjayDas-wz3hj]

Hi Lynn, Now the Cloudera not able to open on VMWare. So need your help.

[@thevinayakmali]

+Sanjay Das Before using cloudera vmware make sure that you have enabled virtualization in your machine

[@SanjayDas-wz3hj]

Hi Vinayak, thanks for ur Support. It is solved

[@pengzhao6157]

i had learned hdfs,buts i can't understand,it's easy

[@SanjayDas-wz3hj]

Hi Lady Lynn, Your videos are too much useful to learn the Hadoop. But one issue I am getting... Not able to install cloudera-quickstart-vm-5.4.0-0-vmware.vmwarevm . Please guide me. I have also gone through stackoverflow.com/questions/29310712/how-to-fix-vmware-fusion-to-import-existing-machine-cloudera-grayed-out and this post is not useful. Please help me

[@LynnLangit]

Sanjay Das were you able to to try this with a 64-bit machine? www.cloudera.com/content/cloudera/en/documentation/core/v5-2-x/topics/cloudera_quickstart_vm.html

[@zg2000tube]

awesome!!! keen to see you back.