thesecretlivesofdata | Understanding what your bits | Frontend Framework library
kandi X-RAY | thesecretlivesofdata Summary
kandi X-RAY | thesecretlivesofdata Summary
So often we use databases and servers without really understanding how they work. The way that data flows is critical to performance and reliability. This project seeks to spread the knowledge of our systems through interactive visualization. If you have a system that you understand and wish to share then please add a [GitHub Issue] Data visualization knowledge is not necessary — just the desire to spread some knowledge.
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Top functions reviewed by kandi - BETA
- Initialize a new HTML reporter .
- format a value into an object
- Initialize the entry
- Constructs a new Markdown reporter instance .
- Constructs a new Spec reporter instance .
- Format a property .
- Initialize a new Base reporter .
- Controller for controls
- Initialize a new Line reporter .
- Initialize a new Progress reporter .
thesecretlivesofdata Key Features
thesecretlivesofdata Examples and Code Snippets
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QUESTION
The distributed value-store etcd uses the raft algorithm. The docs link to animations explaining: how the replica nodes vote to make one node the leader (to be the recipient of external write instructions), and thereafter the leader broadcasts all instructions to all nodes (attaching those instructions to a heartbeat signal that is bounced off of the other nodes, in a star topology, with confirmation after a majority acknowledge).
The replication obviously provides resilience (against failures of individual nodes), and presumably the read performance scales up with replica count.
Is it correct to understand that write performance is constant, and does not scale with replica count?
...ANSWER
Answered 2021-Sep-15 at 07:35It is true. write requires majority of nodes to ack new entry in order to commit it. It may happen that write is even slower with increased number of replicas (it is as fast as slowest node out of quorum). In regards to read, you might find etcd docs about linearizability interesting. TL;DR; default reads also need quorum.
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