Chronicle Map vs Hazelcast
Chronicle Map: Off-heap, memory-mapped key-value store for Java with microsecond latency and cross-process sharing. Hazelcast: A Java in-memory data grid and stream processor that embeds in your app or runs as a cluster.
key differences
- Horizontal scaling is none in Chronicle Map and native in Hazelcast.
- Only Hazelcast has transactions, joins, secondary indexes, vector search, json.
choose chronicle-map for
- +Low-latency reference data and order-book state in trading systems
- +Sharing state between JVM processes on one host
- +Large off-heap caches that survive restarts
best at · Cache, Tick data, Embedded
choose hazelcast for
- +Shared low-latency state for microservices
- +Fraud detection and payment stream processing
- +Web session clustering for Java app servers
- +Distributed caching in front of RDBMS
best at · Cache, Sessions, Streaming
Chronicle Map vs Hazelcast: FAQ
What is the difference between Chronicle Map and Hazelcast?
Chronicle Map: Off-heap, memory-mapped key-value store for Java with microsecond latency and cross-process sharing. Hazelcast: A Java in-memory data grid and stream processor that embeds in your app or runs as a cluster. Horizontal scaling is none in Chronicle Map and native in Hazelcast. Only Hazelcast has transactions, joins, secondary indexes, vector search, json.
When should I choose Chronicle Map over Hazelcast?
Choose Chronicle Map for low-latency reference data and order-book state in trading systems; sharing state between JVM processes on one host; and large off-heap caches that survive restarts. Choose Hazelcast for shared low-latency state for microservices; fraud detection and payment stream processing; and web session clustering for Java app servers.
Is Chronicle Map or Hazelcast more popular?
Hazelcast ranks #63 on the WhichDB Score (33.5/100) and Chronicle Map ranks #321 (8.7/100). Popularity is not fit: check the requirements that matter for your project.
Are Chronicle Map and Hazelcast open source?
Yes. Chronicle Map is open source. License: Apache License 2.0. Yes. Hazelcast is open source. License: Apache 2.0 (Community); Hazelcast Community License for some modules.