Kafka Is No Longer the Only Choice: 2025 Message Queue Selection Guide

Kafka has dominated the message queue space for over a decade, but recently many interesting alternatives have emerged.

Redpanda

• A Kafka-compatible implementation rewritten in C++
• No ZooKeeper required (built-in Raft)
• 2-5x higher throughput than Kafka
• Fully compatible with the Kafka API, with low migration costs

WarpStream

• A message queue built on object storage (S3-compatible)
• No local disks needed; data is written directly to S3
• Zero operations: no need to manage brokers
• Slightly higher latency (P99 ~100ms), but extremely low cost

AutoMQ

• Built by a domestic team, based on the S3 Stream architecture
• Compatible with the Kafka protocol
• Automatic elastic scaling
• Storage-compute separation, with costs 50% lower than self-hosted Kafka

Selection Recommendations

• Already using Kafka and don't want to change → stick with it
• New project, self-hosted → consider Redpanda
• Cloud-native, don't want to handle operations → WarpStream / AutoMQ
• Extremely latency-sensitive → Kafka (local disk version)

The message queue landscape will no longer be dominated by a single player like Kafka.

References:

• Apache Kafka
• Apache Pulsar