5 min read
1
Replication: Can we have more than one leader?
Answer to above question is a resounding YES! Up until now we have covered leader-follower based replication where all the…
Author: varunu28
6 min read
1
Replication: Issues with replication lag
In the last post about comparison between synchronous & asynchronous replication, we saw how synchronous replication can end up blocking…
6 min read
1
Replication: Synchronous vs Asynchronous replication
Replication solves another problem in addition to reliability. It allows the system to scale along with the increase in request…
5 min read
2
Replication: Handling node failure
Failure is the norm in distributed systems. It’s a question of when and not if. These failures can be due…
3 min read
0
Replication: Challenges in onboarding a new follower
In case of a leader-follower system for replication, a typical flow looks like as following: Leader accepts all update operations…
3 min read
5
An introduction to replication
As long as we are dealing with a system where our database lives on a server which never fails and…
4 min read
1
Distributed Consensus: How to deal with disagreement?
This is third part of a series of posts about distributed consensus. I plan to cover distributed consensus in detail…
4 min read
1
Distributed Consensus: How to decide what everyone agrees on?
This is second part of a series of posts about distributed consensus. I plan to cover distributed consensus in detail…
3 min read
0
Distributed Consensus: Why do we need everyone to agree?
This is first part of a series of posts about distributed consensus. I plan to cover distributed consensus in detail…
5 min read
0
Thundering Herd/Cache Stampede
What is the most common solution you have heard for scaling a system with high number of read request for…