This topic compares Message Queue for Apache Kafka and open-source Apache Kafka in terms of stability, kernel capability, and governance capability.
Stability
| Item | Message Queue for Apache Kafka | Apache Kafka |
|---|---|---|
| Disk usage | Deletes old data when no free disk space is available. | Experiences downtime when no free disk space is available. |
| Thread pool isolation | Ensures normal data write when cold data are read. | Experiences thread blocking when cold data are read, which causes frequent data write failures. |
| Partition size | Stably writes data to tens of thousands of partitions. | Experiences frequent jitter when writing data to thousands of partitions. |
| Inspection system | Automatically detects and fixes deadlocks and breakdowns. | None. |
| Bug fixes | Detects and fixes bugs at the earliest opportunity. | Waits for the community to release new versions to fix bugs, which takes a long time. |
Kernel capabilities
| Item | Message Queue for Apache Kafka | Apache Kafka |
|---|---|---|
| Scalability | Supports scaling in seconds. The scaling is not perceived by the upper-layer services. | Supports scaling in hours, which affects clusters due to increased traffic from replication. |
| Storage cost | Provides highly reliable cloud storage in the Professional Edition to save a lot of storage space. | Provides three-replica storage to ensure availability and reliability, which imposes a heavy load on storage. |
Governance capabilities
| Item | Message Queue for Apache Kafka | Apache Kafka |
|---|---|---|
| Version upgrade | Supports one-click upgrade. | Supports manual upgrade, which is prone to errors. |
| Metrics curve | Provides a complete metrics curve to facilitate traffic tracing and troubleshooting. | Provides only real-time metrics. Historical data is difficult to access. |
| Message accumulation alerts | Triggers alerts on message accumulation. | None. |
| Subscription | Provides comprehensive subscriptions. | Provides brief subscriptions. |
| Partition status | Provides a complete partition status diagram. | Provides a brief partition status diagram. |
| Message sending | Allows you to directly send messages from the console. | Allows you to send messages only through the command-line interface, which results in high costs. |
| Message query | Allows you to directly view messages by time or offset in the console. | Allows you to consume messages through the command-line interface, but you cannot view messages by time or offset. |