- 170
- 10 036 339
Rachit Jain
India
Registrace 1. 07. 2015
I am Rachit Jain, an IIT Roorkee Alumnus, and a Software Engineer at Microsoft.
I talk about -
1. Data Structures and Algorithms
2. Competitive Programming
3. Problem Solving
4. Motivation
5. Learning Mindset
6. Success and Winning
7. Failures and Reactions
8. Cracking Interviews
I have given lots and lots of interviews with Google, Microsoft, Goldman Sachs, Directi, Hackerrank and received job offers from all of them, except for one ;)
I have worked with Microsoft, Flipkart, Grofers, HackerEarth, Codechef and also delivered lectures in IIIT-H about problem solving and logical reasoning.
Subscribe, watch video and comment so that we learn from each other!
If you want to invite me as a speaker for some event, contact me at my Facebook page, LinkedIn profile.
I talk about -
1. Data Structures and Algorithms
2. Competitive Programming
3. Problem Solving
4. Motivation
5. Learning Mindset
6. Success and Winning
7. Failures and Reactions
8. Cracking Interviews
I have given lots and lots of interviews with Google, Microsoft, Goldman Sachs, Directi, Hackerrank and received job offers from all of them, except for one ;)
I have worked with Microsoft, Flipkart, Grofers, HackerEarth, Codechef and also delivered lectures in IIIT-H about problem solving and logical reasoning.
Subscribe, watch video and comment so that we learn from each other!
If you want to invite me as a speaker for some event, contact me at my Facebook page, LinkedIn profile.
MultiLeader and LeaderLess Replication in Distributed Databases
In this video, we understand problems that arise due to distributed databases and replication lag. Why does CZcams hide subscriber count partially?
Instead of 190343, it says 190K subscribers. Reason is subscriber count value is different in different replica clusters, and it gives users a bad experience when they see going back in time and seeing a stale count value showing a false decrement.
We understand the various other problems that come into picture with replication lag, and how to mitigate the same as application developers.
The DDIA Book is a great recommendation for System Design and I would like to summarise the chapters and my learnings here.
References
System Design Playlist: bit.ly/system-design-course
DDIA Book: amzn.to/3B6TJcm
Sponsored By Educative.io
✅ 𝗘𝗱𝘂𝗰𝗮𝘁𝗶𝘃𝗲.𝗶𝗼 [46% OFF] 👉🏻bit.ly/educative-unlimited-extra-discount
Educative.io coupon "rachit" to get extra discount or use the link above to get "Unlimited" access to "ALL" courses on their websites - React, System Design, Coding Interview in C++, Python, Java, Redux, Docker and what not!
Chapters
00:00 Recap of Single Leader Architecture
02:04 How Single Leader differs from Multi-Leader Replication
3:15 Benefits of Multi-Leader Replication
4:02 Example of Write Conflicts in Multi-Leader Replication
5:08 Conflict Problem Analysis in single-leader replication
5:36 Conflict Problem Analysis in multi-leader replication
07:01 Few strategies for to resolve conflicts
08:31 Topologies in Multi Leader Replication
09:35 Problem with All to All Replication
10:38 Co-relation with the Consistent Prefix Reads
11:03 Version Vectors
11:35 Reality of Multi Leader Replication - poorly handled
11:57 Why documentation and testing is important?
12:08 Leader-less Replication
12:58 How reads and writes work in leader-less replication?
14:02 R+W Greater Than N: Quorum Reads and Writes
15:42 Demo of how better availability and tolerance in leaderless replication systems
𝗜𝗡𝗧𝗘𝗥𝗩𝗜𝗘𝗪 𝗣𝗥𝗘𝗣 𝗣𝗥𝗢𝗗𝗨𝗖𝗧𝗦
✅ 𝗘𝗱𝘂𝗰𝗮𝘁𝗶𝘃𝗲.𝗶𝗼 [10% OFF for First 90 Users] 👉🏻educative.io/rachit
✅ 𝗦𝘆𝘀𝘁𝗲𝗺 𝗗𝗲𝘀𝗶𝗴𝗻 [Discount for Indian audience] 👉🏻bit.ly/design-rachit
✅ 𝗣𝗿𝗼𝗴𝗿𝗮𝗺𝗺𝗶𝗻𝗴 𝗕𝗼𝗼𝗸𝘀 [Amazon Affiliate] 👉🏻amazon.in/shop/rachitjain
SUBSCRIBE AND HIT BELL ICON TO CHECK MORE OF MY CONTENT
czcams.com/users/RachitJain
𝗦𝗢𝗖𝗜𝗔𝗟 𝗣𝗥𝗢𝗙𝗜𝗟𝗘𝗦
✅ Portfolio Website - rachitiitr.com
✅ Instagram - rachitiitr
✅ LinkedIn - linkedin.com/in/rachitiitr
✅ Twitter - rachitiitr
✅ Github - github.com/rachitiitr/DataStructures-Algorithms
✅ Facebook - AlgorithmsWithRachitJain
𝗜𝗠𝗣𝗢𝗥𝗧𝗔𝗡𝗧 𝗣𝗟𝗔𝗬𝗟𝗜𝗦𝗧𝗦
✅ 𝗖𝗼𝗱𝗶𝗻𝗴 𝗜𝗻𝘁𝗲𝗿𝘃𝗶𝗲𝘄 𝗟𝗲𝗰𝘁𝘂𝗿𝗲𝘀 👉🏻czcams.com/video/J1JZjhdr3Oo/video.html
✅ 𝗚𝗿𝗮𝗽𝗵 𝗧𝗵𝗲𝗼𝗿𝘆 𝗣𝗹𝗮𝘆𝗹𝗶𝘀𝘁 👉🏻czcams.com/video/xyJxCjweLKE/video.html
✅ 𝗖++ 𝗦𝗧𝗟 𝗣𝗹𝗮𝘆𝗹𝗶𝘀𝘁 👉🏻czcams.com/video/g-1Cn3ccwXY/video.html
✅ 𝗠𝘆 𝗣𝗲𝗿𝘀𝗼𝗻𝗮𝗹 𝗜𝗻𝘁𝗲𝗿𝘃𝗶𝗲𝘄 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲𝘀 👉🏻czcams.com/video/0Vmtmqa9Og0/video.html
✅𝗣𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝘃𝗶𝘁𝘆 𝗧𝗶𝗽𝘀 𝗣𝗹𝗮𝘆𝗹𝗶𝘀𝘁 👉🏻czcams.com/video/0Vmtmqa9Og0/video.html
✅𝗟𝗶𝗳𝗲 𝗟𝗲𝘀𝘀𝗼𝗻𝘀 & 𝗠𝗲𝗻𝘁𝗼𝗿𝘀𝗵𝗶𝗽 👉🏻czcams.com/video/9SGM0EqyUc0/video.html
𝗣𝗥𝗢𝗚𝗥𝗔𝗠𝗠𝗜𝗡𝗚 𝗣𝗥𝗢𝗙𝗜𝗟𝗘𝗦
✅ Github ► github.com/rachitiitr/DataStructures-Algorithms
✅ Programming Blog ► rachitiitr.blogspot.com
✅ CodeForces ► www.codeforces.com/profile/rachitjain
✅ CodeChef ► www.codechef.com/users/rachitiitr
Instead of 190343, it says 190K subscribers. Reason is subscriber count value is different in different replica clusters, and it gives users a bad experience when they see going back in time and seeing a stale count value showing a false decrement.
We understand the various other problems that come into picture with replication lag, and how to mitigate the same as application developers.
The DDIA Book is a great recommendation for System Design and I would like to summarise the chapters and my learnings here.
References
System Design Playlist: bit.ly/system-design-course
DDIA Book: amzn.to/3B6TJcm
Sponsored By Educative.io
✅ 𝗘𝗱𝘂𝗰𝗮𝘁𝗶𝘃𝗲.𝗶𝗼 [46% OFF] 👉🏻bit.ly/educative-unlimited-extra-discount
Educative.io coupon "rachit" to get extra discount or use the link above to get "Unlimited" access to "ALL" courses on their websites - React, System Design, Coding Interview in C++, Python, Java, Redux, Docker and what not!
Chapters
00:00 Recap of Single Leader Architecture
02:04 How Single Leader differs from Multi-Leader Replication
3:15 Benefits of Multi-Leader Replication
4:02 Example of Write Conflicts in Multi-Leader Replication
5:08 Conflict Problem Analysis in single-leader replication
5:36 Conflict Problem Analysis in multi-leader replication
07:01 Few strategies for to resolve conflicts
08:31 Topologies in Multi Leader Replication
09:35 Problem with All to All Replication
10:38 Co-relation with the Consistent Prefix Reads
11:03 Version Vectors
11:35 Reality of Multi Leader Replication - poorly handled
11:57 Why documentation and testing is important?
12:08 Leader-less Replication
12:58 How reads and writes work in leader-less replication?
14:02 R+W Greater Than N: Quorum Reads and Writes
15:42 Demo of how better availability and tolerance in leaderless replication systems
𝗜𝗡𝗧𝗘𝗥𝗩𝗜𝗘𝗪 𝗣𝗥𝗘𝗣 𝗣𝗥𝗢𝗗𝗨𝗖𝗧𝗦
✅ 𝗘𝗱𝘂𝗰𝗮𝘁𝗶𝘃𝗲.𝗶𝗼 [10% OFF for First 90 Users] 👉🏻educative.io/rachit
✅ 𝗦𝘆𝘀𝘁𝗲𝗺 𝗗𝗲𝘀𝗶𝗴𝗻 [Discount for Indian audience] 👉🏻bit.ly/design-rachit
✅ 𝗣𝗿𝗼𝗴𝗿𝗮𝗺𝗺𝗶𝗻𝗴 𝗕𝗼𝗼𝗸𝘀 [Amazon Affiliate] 👉🏻amazon.in/shop/rachitjain
SUBSCRIBE AND HIT BELL ICON TO CHECK MORE OF MY CONTENT
czcams.com/users/RachitJain
𝗦𝗢𝗖𝗜𝗔𝗟 𝗣𝗥𝗢𝗙𝗜𝗟𝗘𝗦
✅ Portfolio Website - rachitiitr.com
✅ Instagram - rachitiitr
✅ LinkedIn - linkedin.com/in/rachitiitr
✅ Twitter - rachitiitr
✅ Github - github.com/rachitiitr/DataStructures-Algorithms
✅ Facebook - AlgorithmsWithRachitJain
𝗜𝗠𝗣𝗢𝗥𝗧𝗔𝗡𝗧 𝗣𝗟𝗔𝗬𝗟𝗜𝗦𝗧𝗦
✅ 𝗖𝗼𝗱𝗶𝗻𝗴 𝗜𝗻𝘁𝗲𝗿𝘃𝗶𝗲𝘄 𝗟𝗲𝗰𝘁𝘂𝗿𝗲𝘀 👉🏻czcams.com/video/J1JZjhdr3Oo/video.html
✅ 𝗚𝗿𝗮𝗽𝗵 𝗧𝗵𝗲𝗼𝗿𝘆 𝗣𝗹𝗮𝘆𝗹𝗶𝘀𝘁 👉🏻czcams.com/video/xyJxCjweLKE/video.html
✅ 𝗖++ 𝗦𝗧𝗟 𝗣𝗹𝗮𝘆𝗹𝗶𝘀𝘁 👉🏻czcams.com/video/g-1Cn3ccwXY/video.html
✅ 𝗠𝘆 𝗣𝗲𝗿𝘀𝗼𝗻𝗮𝗹 𝗜𝗻𝘁𝗲𝗿𝘃𝗶𝗲𝘄 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲𝘀 👉🏻czcams.com/video/0Vmtmqa9Og0/video.html
✅𝗣𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝘃𝗶𝘁𝘆 𝗧𝗶𝗽𝘀 𝗣𝗹𝗮𝘆𝗹𝗶𝘀𝘁 👉🏻czcams.com/video/0Vmtmqa9Og0/video.html
✅𝗟𝗶𝗳𝗲 𝗟𝗲𝘀𝘀𝗼𝗻𝘀 & 𝗠𝗲𝗻𝘁𝗼𝗿𝘀𝗵𝗶𝗽 👉🏻czcams.com/video/9SGM0EqyUc0/video.html
𝗣𝗥𝗢𝗚𝗥𝗔𝗠𝗠𝗜𝗡𝗚 𝗣𝗥𝗢𝗙𝗜𝗟𝗘𝗦
✅ Github ► github.com/rachitiitr/DataStructures-Algorithms
✅ Programming Blog ► rachitiitr.blogspot.com
✅ CodeForces ► www.codeforces.com/profile/rachitjain
✅ CodeChef ► www.codechef.com/users/rachitiitr
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Great video, thanks for the clear explanation! God bless
bhai jetpack compose ka interview banao pls
Amazing
Mines is not working, it's some kind of version error. (Edit): It is working for the tittle but the you tube thumbnails are not being blur.
Revisiting this video, makes me feel good 😄
150 rupiya kaat overacting ka ...
_=[print((20-i)*' ' + '*'*(2*i+1) if i < 10 else ' '*20+'*') for i in range(15)] or print(*[(20-i)*' ' + '*'*(2*i+1) if i < 10 else ' '*20+'*' for i in range(15)], sep=" ")
bhai order thoda upar neeche hai
Thanks
This guy disappeared into thin air? I rember yes bck this guy n tht gaurav sen
explained it so well!! thank you so much!
what the hell, after 11 mins of patiently waiting for the way to do the sum, I learn that its in part 2 whose link is not here. GOD, thanks though learnt the space complexity is O(n) but it took 11 mins for that I learnt there hasn't been part 2 at all ......
but what is use then to generate segment tree it take o(n) time. Instead we can use the brute force method. I ask the same question to the charge GPT it tells that for generating it takes n / log n time complexity not o(n) this is response of chatgpt ===> No, generating or building a segment tree from an array takes \(O(n \log n)\) time complexity, not \(O(n)\). Here's why: - **Building the tree:** Each level of the segment tree represents a merging of nodes from the previous level. If there are \(n\) elements, there are \(O(\log n)\) levels in the tree because the height of a segment tree is \(O(\log n)\). - **Merging nodes:** Each level has at most \(n\) nodes, and merging each node involves a constant amount of work. Therefore, the total time to build the segment tree is \(O(n \log n)\).
Bhai Rachit kaha chle gye .. Harkirat Singh ne aapke Space ko le liya hai actually . Hope u r good
I believe, longest valid parentheses can be solved by maintaining a simple stack and keep removing the valid parentheses and maximising the length which will be calculated using the difference between current index and stack's top element index
Thank you so much for this video. Cleared all my doubts.
IF bloom filter is present per SSt then we would still need to search for all SSTs ?
this video needs to be swapped with 5th video.. videos are out of order in this playlist.
Put this video as 1st video in this playlist. You have misplaced it.
Yrrrr but ye painful 💔 tha ye bhtttt ❤ 😂 Purane yaaade ❤
Thank you! Very well explained in a crystal clear manner with concrete examples, not hand wavy!
pretty messed up
Great video.
What a beautiful video, got all of my questions answered. Subscribed!
IITian interviewing another IITian on how to get into Stanford is unrealistic for most ppl
WHAT???
Good Explanation bro
Participants' engagement in research symposiums showcases their contributions to their fields in the DMP program. Can you make a video discussing symposium presentations?
Thank you so much!!! Tomorrow is my data structures end semester exam :)
nice explanation
Which app are you using for note taking?
Network load is not a crucial factor anymore. There is however no decent standardized way to convert C++ to JSON. For grpc there is a convertor for this, although the files are ridigoulous comp[licated to read.
This wouldn't work if the input has duplicate?
20:40 ts
really really * 1000
Heart is aching now to explore other loaders - starting first with tsx loader.. thanks for this heart ache 🤩
Could you show how to write code in c++
How is byte sequence retrived?
mujhe software eng banna hai, walmart main naukri karni hai, 27 lakh ka package h, video bna do codehers pe
Easy for cyclic sort if anyone watched @kunalKushwaha will know this one is an easy problem😊
Why not kotlin
Pls loreal brandstorm ke liye tips de dijiye
praise the lord.. ganesh
Great work! Go ahead.
what can we do if the array size is in odd so we would not be able to construct the tree know ?
if you are doing sum range queries, you can append 0s to array to give it the size you need
Non IITian but I feel IIT tag indirectly says you have worked really hard at some point of time in your life.
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Hello bhaiya, Jio Creative Labs PPI derha hai koi hackathon se. Koi knowledge ho apko?
3:28 Definitions are not quite right. Trees are acyclic and forests are disjoint union of trees so 4-5 is a tree and also forest (on one tree) the other subgraph is neither tree nor forest and the total graph is not a forest. Suppose edge 1-3 is removed to make the first subgraph a tree, I think it would be more typical to say Tree 1 and Tree 2 and call the graph a forest of these two trees.