All others (outside/inside India) failed terribly to explain this concept. This guy has done it in 1 hour. My sincere thanks 🙏 to you. Please keep it up!
I have spend 1 hour to listen this ..day before the final exam I really loved the way you explain ??.... It's makes me easy to understand!! During this pandamic situation we haven't listen classes properly...I am struggling a lot to understand... I feel really confident after watching this video Thank you so much...
Secondary Name Node (SNN) in Hadoop takes snapshot of Name Node and is available for switchover in case of main Name Node failure. Manual switchover to SNN required.
it consist o a copy of all logs and files of name node so in case if primary name node fails , when there i a switch over they can access info from secondary name node...
RK sir you rock man. First time I understood something without watching another tutorial on same topic. I had one suggestion. If possible make links in the video that you can use to move back and forth to the key concepts. As an example if I want to listen about "input splits" again I can click the link to go to time 52:00 on the video for it. Thank you so much for a great tutorial.
Huge thanks for the knowledge the person has and the simplicity in which he explains complex concepts. Ignore the diction clearly English is not his 1st language. The simplicity in which he explains complex concepts is applaudable. Shout out to Sir Durga :) Keep it up.
The way Rama Krishna teaches is great! He explains the subject in a layman way which is well understood & clears the concept in the best possible way. Truly appreciated and thanks for sharing it online!!!
just paused my screen to pay bundle of thanks to you , you have explained all stuffs will relating to big data as i had miss my classes this semister , i was unaware of these contents and now because of you i have known big data analytics more than my other friends thankyou sir
Very clean explanation about hadoop filesystem architecture. Even a fresher can be confident to come into bigdata. Thank you Sir. Very Clearly explained.
WoW !! ... I am just new to Database world.... specially in Big data and Hadoop .... when i started to watch this video... i could not move for 1 hour as the way Sir explaining it i feel i am in my collage classroom and my favourite Teacher class is going on .... Really amazing ... The real time Example like Farmer and Platform Train which is Superb... !!!! Thank so much to explaining in such a simple Term..... will surely follow all your video.....
I agree with Sumit Sinha, He is an amazing teacher without a question. I did not even need to take notes, yet can explain this new skill to anyone. God Bless his knowledge. I hope he can up load some videos of Java Prog.
Simply superb..so interesting and addictive lessons...wonderful explanation with crystal clear examples. I am not a technical person but even i started understanding well!!
Mayank View other videos on Hadoop, ruclips.net/video/VLOeTwuoTp8/видео.html ruclips.net/video/VNp0e9bEwzc/видео.html ruclips.net/video/EsOCuZKy9lw/видео.html ruclips.net/video/6vkHpSsTcgo/видео.html View 42 videos on Collections in Java, ruclips.net/video/rI3VkItC0eA/видео.html View 5 videos on JSF, ruclips.net/video/rAa1wwWLw1Y/видео.html View 50 videos on Oracle, ruclips.net/video/pX5WJctn3Kw/видео.html View 35 videos on Hibernate, ruclips.net/video/SZ8abQ3vmdc/видео.html View 115 videos on Data Structures, ruclips.net/video/oAAiBQFSEik/видео.html View 58 videos on Struts, ruclips.net/video/nYqsnrHGsQg/видео.html View 74 videos on Spring, ruclips.net/video/YpsFT50mths/видео.html View 41 videos on CRT, ruclips.net/video/fDRnKPyvR14/видео.html View 12 videos on JAVA Reflections API & Annotations ruclips.net/video/BxCw0uTxZRs/видео.html View 39 videos on Java Real Time Project Implementation on Spring,Struts & Hibernate, ruclips.net/video/iKnb0AgKZJ0/видео.html View other videos on ADV JAVA ruclips.net/video/83jLqTAbqQU/видео.html
I always felt a nap when try to learn new things initially and even that things may be of my interest I felt boring. This is so because the presenter never or hardly explain what he/she wants to explain. This time I completed two consecutive sessions without a single nap and with all my interests and curiosity. I am sure if this video goes long for 4 hours in one go I, even in that case, would not leave it till end. Awesome !!
This is the best video encountered so far in hadoop and hdfs . so clearly explained. hats off to you!! thankyou so much! and i m in love with that railway ticket example!
really informative and useful video for hadoop beginners, the person can give an example only when the concept is completely known in and out , awesome.
If I am not wrong ,As per hdfs architecture Name node will not talk to data nodes.. Data node will always ping (Heart beat) to Name node 1)HDFS uses heartbeat messages to detect connectivity between name and data nodes HDFS heartbeats: Several things can cause loss of connectivity between name and data nodes. Therefore, each data node sends periodic heartbeat messages to its name node, so the latter can detect loss of connectivity if it stops receiving them. The name node marks as dead data nodes not responding to heartbeats and refrains from sending further requests to them. Data stored on a dead node is no longer available to an HDFS client from that node, which is effectively removed from the system. If the death of a node causes the replication factor of data blocks to drop below their minimum value, the name node initiates additional replication to bring the replication factor back to a normalized state.
Feeling Proud When someone can teach technology like this, #ResectForSir. Sir the way you are understanding the technology is Remarkable. Thank you guys for this video. Sir you just made this technology interesting and fun while learning. Wishing you a good time. Appreciated Truly!!!
All others (outside/inside India) failed terribly to explain this concept. This guy has done it in 1 hour. My sincere thanks 🙏 to you. Please keep it up!
This is best comprehensive free tutorial for Hadoop I can find!
No one teach like this, I am again repeating, no one can teach like this in the entire RUclipsr community. You are an angel to us.
I spent 1 hour listening, think this is one of the best "HDFS Architecture" video I have found so far. Kudos!!!!
Prasanna Prabhu Check for More videos of Hadoop Rama Krishna Sir
www.durgajobs.com/ramakrishna--hadoop-youtube-videos-with-notes.html
Very true
I have spend 1 hour to listen this ..day before the final exam
I really loved the way you explain ??....
It's makes me easy to understand!!
During this pandamic situation we haven't listen classes properly...I am struggling a lot to understand...
I feel really confident after watching this video
Thank you so much...
He is amazing teacher. The way, he explained, it's really great. Thanks a lot for sharing this. Truly appreciated!!!
TQ Sumit sinha
In case the primary namenode goes down, the secondary namenode will be used.
Deven Vora you mean secondarynamenode work as a backup for namenode ???
Secondary Name Node (SNN) in Hadoop takes snapshot of Name Node and is available for switchover in case of main Name Node failure. Manual switchover to SNN required.
it consist o a copy of all logs and files of name node so in case if primary name node fails , when there i a switch over they can access info from secondary name node...
This guy explains so well and in simple language, got full marks for this question in exam and passed
I have visited this video multiple times to refresh the concepts.. one of the best in RUclips.
RK sir you rock man. First time I understood something without watching another tutorial on same topic. I had one suggestion. If possible make links in the video that you can use to move back and forth to the key concepts. As an example if I want to listen about "input splits" again I can click the link to go to time 52:00 on the video for it. Thank you so much for a great tutorial.
Huge thanks for the knowledge the person has and the simplicity in which he explains complex concepts. Ignore the diction clearly English is not his 1st language. The simplicity in which he explains complex concepts is applaudable. Shout out to Sir Durga :) Keep it up.
explain by real masters, best tutorial ever, thanks rama sir
The way Rama Krishna teaches is great! He explains the subject in a layman way which is well understood & clears the concept in the best possible way. Truly appreciated and thanks for sharing it online!!!
Even though I am beginner in this field ,I am feeling like I am already mastering it, All thanks to this amazing teacher
is it available offline ?
Such an awesome teacher. Its hard to get a teacher like him now-a-days. Blessed !
Teaching style is perfect. Thanks Rama sir for explaining from scratch. Really awesome
wow!! its very interesting and easiest way of knowing about ''HDFS'' just i am asked myself "where was I?"
Awesome explanation for HDFS architecture and Map reduce, with realistic example, A good teacher is worth a thousand Books
Thanks a lot sir for providing such qualitative material for free.It is really helpful to understand Hadoop.
Your concepts and elaboration are right on the money! Excellent tutorial. Thanks RK!
He is good teacher. He came with simple example to reach. Thank you very much.............
just paused my screen to pay bundle of thanks to you , you have explained all stuffs will relating to big data as i had miss my classes this semister , i was unaware of these contents and now because of you i have known big data analytics more than my other friends
thankyou sir
Very clean explanation about hadoop filesystem architecture. Even a fresher can be confident to come into bigdata. Thank you Sir. Very Clearly explained.
We need tutor like you Gentleman who simply convey the complex concepts. Congrats!!!
These Hadoop training videos are excellent. Concise, deductive, detailed, professional, and clear. Thank you very kindly.
One of the best lectures i have ever seen on my entry in Ph.D course. May Allah bless u with more wisdom.
Really a good one. He explains with very simple and understandable examples to make it easy.
WoW !! ... I am just new to Database world.... specially in Big data and Hadoop .... when i started to watch this video... i could not move for 1 hour as the way Sir explaining it i feel i am in my collage classroom and my favourite Teacher class is going on .... Really amazing ... The real time Example like Farmer and Platform Train which is Superb... !!!!
Thank so much to explaining in such a simple Term..... will surely follow all your video.....
Its a very good videos.Examples are very real time with proper explanation.Please keep posting such videos.
Complex Concepts in most Simplified way...Kudos to trainer
Brilliant lecture in Indian style. Well explained. Very useful. Thank you so much Durga Software Solutions. My special thanks to the lecturer.
Awesome Sir! You have Great knowledge and the Examples provided are Superb!!!
It helped me a lot while writing my semester exam...thanks a lot....understood well
He is the best teacher I have ever seen....what an explain tion sir .....awseome
He is best at core making anyone to understand the concept. Would love to watch more from him.
Sir, i can keep listening to what to teach for hours & never be tired of listeninng . so much to learn.. thank you for these tutorials :D ...
Any one can understand easily....Superb lecture....Ramakrishna Sir
I have understood HDFS easily from your lecture. it's great explanation with effective example
Really Awesome lecture. I got amazed by listening to his way of explanation. Thanks a lot Sir.
Excellent ...
Amazing explanation sir. Crystal clear understanding of Hadoop Architecture in 1 Hour. Thank you so much .
Brilliant explanation no need of any other website to understand
Very good explanation with good examples.. Good work!
Really a very good Lecture . Every beginners must watch these videos to understand Hadoop. Thanks a lot Ramakrishnan. Keep up the good work.
Hi Tapas Karmakar Thank u.
Brilliant explanation and examples. Thank you Mr Rama Krishna.
Dear Rama Krishna,
Really good to listen your session. Especially, your real time example is very good. Keep this up. Thanx for your valuable effort.
I agree with Sumit Sinha, He is an amazing teacher without a question. I did not even need to take notes, yet can explain this new skill to anyone.
God Bless his knowledge. I hope he can up load some videos of Java Prog.
extra ordinary explanation with awesome examples... really I liked this tutorial... very nice...
superb usage of examples and clear explanation... thank you Rama Krishna sir and durga soft...
Best tutorial on hdfs. No need to go to any other tutorials for more explanation of the concept. Thank You. Big Help!! Was struggling with the basics.
really good rama krishna, its like a story, any one can understand easily clearly
Dear RK. Very well presented the Hadoop HDFS Architecture. Simple and Clear. Thank you so much.
Hi Sadiq. Thank you very much for your feedback
Simply superb..so interesting and addictive lessons...wonderful explanation with crystal clear examples. I am not a technical person but even i started understanding well!!
Amazing explanation. Mr. Rama Krishna hats off to you. you are super awesome
A very good lecture. I never felt boring. Thanks.
OMG!!!
Out of Expectation Sir.....
I have never ever seen such teacher....can't say anything Just Long live Sir, nd Keep teaching Us as well
excellent teaching with simple example. I am very thankful to sir Ram Krishanan.
Ghji
Excellent presentation. Thank you for being right to the point, moving quickly
Yes we can say lot of negative things about his pronounciation but he did excellent job in explaining the concepts
Very well explained the HDFS architecture with Rice packet analogy. Thank you!
Wow... excellent teaching skills.. this guy is a master
i watched this video just now ( 2019 ) , what an amazing explanation
really good presentation .teaching the things in an easyway or in a simpler manner really awesome job ....
He is very nice teacher. The way, he explained, it's really great. Thanks a lot for this video...
Thank you Ramakrishna. It was nice video's and excellent explanation.
best explanation. I have gone through some paid courses as well but this explanation is way better than all those.
Excellent presentation Mr Rama.. concept and the flow very easy to understand.. thank you so much for sharing your knowledge..
Super brilliant teacher! Thank you, Mr Rama Krishna.
Mayank
View other videos on Hadoop,
ruclips.net/video/VLOeTwuoTp8/видео.html
ruclips.net/video/VNp0e9bEwzc/видео.html
ruclips.net/video/EsOCuZKy9lw/видео.html
ruclips.net/video/6vkHpSsTcgo/видео.html
View 42 videos on Collections in Java,
ruclips.net/video/rI3VkItC0eA/видео.html
View 5 videos on JSF,
ruclips.net/video/rAa1wwWLw1Y/видео.html
View 50 videos on Oracle,
ruclips.net/video/pX5WJctn3Kw/видео.html
View 35 videos on Hibernate,
ruclips.net/video/SZ8abQ3vmdc/видео.html
View 115 videos on Data Structures,
ruclips.net/video/oAAiBQFSEik/видео.html
View 58 videos on Struts,
ruclips.net/video/nYqsnrHGsQg/видео.html
View 74 videos on Spring,
ruclips.net/video/YpsFT50mths/видео.html
View 41 videos on CRT,
ruclips.net/video/fDRnKPyvR14/видео.html
View 12 videos on JAVA Reflections API & Annotations
ruclips.net/video/BxCw0uTxZRs/видео.html
View 39 videos on Java Real Time Project Implementation on Spring,Struts & Hibernate,
ruclips.net/video/iKnb0AgKZJ0/видео.html
View other videos on ADV JAVA
ruclips.net/video/83jLqTAbqQU/видео.html
I always felt a nap when try to learn new things initially and even that things may be of my interest I felt boring. This is so because the presenter never or hardly explain what he/she wants to explain. This time I completed two consecutive sessions without a single nap and with all my interests and curiosity. I am sure if this video goes long for 4 hours in one go I, even in that case, would not leave it till end.
Awesome !!
This is the best video encountered so far in hadoop and hdfs . so clearly explained. hats off to you!! thankyou so much! and i m in love with that railway ticket example!
Excellent explanation for non computer students / employee... thanks for sharing such an useful lecture...
Nice Presentation with clean Notes. Very nice!!!
Best video series I have even found for Big data. Thank you for sharing .
vishvas patel Check for More videos of Hadoop Rama Krishna Sir
www.durgajobs.com/ramakrishna--hadoop-youtube-videos-with-notes.html
Can you please upload the Hadoop 2.X Yarn videos ?
the way of teaching is really superb.
understandable example nice work
Awesome. Very confident way of teaching. Crystal clear.
Hi Gol pra Tq very much for your feedback
Superd Sir the way you describe each and every single point is just awesome for the Hadoop beginner
really good sir way of ur explanations and teaching hdfs architecture, it is very helpful to me thanks a lot
excellent explanation with good examples for HDFS, nice work sir
The trainer is amazing!!! So clear and to the point.
Hi Abrar. Thank you very much for your feedback
Excellent training session! All the very best Ram for your future endavours!
Sriram Anantha Padmanaban Check for More videos of Hadoop Rama Krishna Sir
www.durgajobs.com/ramakrishna--hadoop-youtube-videos-with-notes.html
Sir you are great your lectures help alot every time. God bless yu
really informative and useful video for hadoop beginners, the person can give an example only when the concept is completely known in and out , awesome.
Great Video sir... We really need such tutors who can teach us so well.
Awesome Ramkrishna really I wanted to quickly understand Hadoop and it was really helpful !
Excellent !!! You did wonderful job!!! Highly appericated your effort, to be very honest I understood the concept very clearly. Thanks Again!!!!
The explanation is simple and really good. I am very thankful to you sir and I'm learning a lot from this channel
thank u gautham
This is precisely what I was looking for. Great video with granular level of explanation. God bless you !
best lecture sir ,it gives little bit knowledge of big data and hadoop,and the examples which you have given was so nice
If I am not wrong ,As per hdfs architecture Name node will not talk to data nodes.. Data node will always ping (Heart beat) to Name node
1)HDFS uses heartbeat messages to detect connectivity between name and data nodes
HDFS heartbeats:
Several things can cause loss of connectivity between name and data nodes. Therefore, each data node sends periodic heartbeat messages to its name node, so the latter can detect loss of connectivity if it stops receiving them. The name node marks as dead data nodes not responding to heartbeats and refrains from sending further requests to them. Data stored on a dead node is no longer available to an HDFS client from that node, which is effectively removed from the system. If the death of a node causes the replication factor of data blocks to drop below their minimum value, the name node initiates additional replication to bring the replication factor back to a normalized state.
yes in every 3 seconds datanode always ping to namenode
u can also read the packtes while you send some data using tcpdump -i enp0s3 -n
enp0s3 is my network name
excellent work. clear cut idea can acheived through this video about the concerned topic. thank u , sir
Wow. super duper teacher with nice examples. Love it.
You made it so easy to understand, Truly mind blown.
Crystal clear explanation and explained excellent. Good Job.
realy amazing,lot of thanks for Durga soft,very useful vodeos.by.Basavaraj Chennai
You’re teaching is very well bro
I like the teaching style. Very good, thanks.
Really loved the way you explained thank you so much. Amazing 🙏
Sir, you have awesome skills putting the concept so clearly and make it look simple
Great teaching and very well explained. Keep up the good work Sir.
Very Good Explanation with Great Examples. Thanks a lot Guruji !!
Simply great. Worth listening. Thanks a lot. Waiting for your next videos.
Feeling Proud When someone can teach technology like this, #ResectForSir. Sir the way you are understanding the technology is Remarkable. Thank you guys for this video. Sir you just made this technology interesting and fun while learning. Wishing you a good time. Appreciated Truly!!!