Glossary term
What is Topic / Partition? Meaning for developers
A named stream / an ordered slice of it. Example: Topic orders, partitioned by order ID.
Learn it properly · System DesignLesson 36: Apache Kafka FundamentalsThirty services all need each other's data, and the data team wants to replay last week. How Kafka's simple idea — a partitioned, replicated, append-only log — became the backbone of event streaming: topics, keys, offsets, consumer groups, retention and compaction.