Leader Election and Log Replication in Raft – Part 2

In the last part of this post, I gave a general overview of Raft followed by Leader Election algorithm. We now need to discuss, how leader does the consistent replication of log onto the follower nodes, few more safety properties, and constraints on the election mechanism. Log Replication For now let's assume that client requests... Continue Reading →

Paging v/s Swapping

Swapping is the procedure of copying out the entire process(its address space) from main memory to some sort of secondary storage(typically hard disk or tape storage). Usually this is done as a result of CPU scheduling. Operating System typically maintains a read-to-run queue of processes. The queue comprises of information about processes that are ready... Continue Reading →

Call Stack Internals (Part 1)

In this post, I will be discussing the internal working of a function call stack. The content will be divided into multiple posts for better understanding. Major focus will be on the following: Creation of stack frames, Saving/restoring registers to/from the stack. Saving function local variables, arguments, and return address on the stack. Usage and... Continue Reading →

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