What is Eventual Consistency?
A model where data updates propagate gradually and all copies will eventually match, but may differ briefly.
Why It Matters
Eventual consistency enables high availability and performance in distributed systems, with the trade-off of temporary inconsistency.
Real-World Example
Updating your profile picture might take a few seconds to appear on all servers worldwide.
“Understanding terms like Eventual Consistency matters because it helps you have better conversations with developers and make smarter decisions about your software. You do not need to be technical. You just need to know enough to ask the right questions.”
Related Terms
Strong Consistency
A model where all users always see the same, most up-to-date version of the data.
BASE
A database principle (Basically Available, Soft state, Eventually consistent) that prioritises availability over immediate consistency.
CAP Theorem
A principle stating that a distributed database can only guarantee two of three properties: Consistency, Availability, and Partition tolerance.
Replication
Copying data from one database server to others so multiple servers have the same information.
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Related Terms
Replication
Copying data from one database server to others so multiple servers have the same information.
BASE
A database principle (Basically Available, Soft state, Eventually consistent) that prioritises availability over...
CAP Theorem
A principle stating that a distributed database can only guarantee two of three properties: Consistency, Availability,...
Strong Consistency
A model where all users always see the same, most up-to-date version of the data.
Database
An organised collection of data that your application can store, retrieve, and update
SQL
A language for communicating with databases, used to create, read, update, and delete data