Chronicle Map
JetBrains Xodus
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| Chronicle Map | JetBrains Xodus | |
|---|---|---|
| 3 | 0 | |
| 2,585 | 1,087 | |
| 0.5% | 0.9% | |
| 8.7 | 5.1 | |
| 8 days ago | 3 days ago | |
| Java | Java | |
| Apache License 2.0 | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Chronicle Map
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Off-heap memory in Java
Chronicle-Map: Chronicle Map is an in-memory, key-value store, designed for low-latency, and/or multi-process applications.
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Solution for hash-map with >100M values
https://github.com/OpenHFT/Chronicle-Map - Maybe a better offheap map
I've wrangled data sets in the ~600gb range using nothing but plain old Java and a few beefy boxes. This can all be kept in memory, but you have to go off-heap. You can use Chronicle Map and Chronicle Values to model this data and work with it off-heap in a way that's still very clean and object oriented. 128gb of RAM is cheap these days, whether you're in the cloud or not.
JetBrains Xodus
We haven't tracked posts mentioning JetBrains Xodus yet.
Tracking mentions began in Dec 2020.
What are some alternatives?
MapDB - MapDB provides concurrent Maps, Sets and Queues backed by disk storage or off-heap-memory. It is a fast and easy to use embedded Java database engine.
Redisson - Redisson - Easy Redis Java client with features of In-Memory Data Grid. Over 50 Redis based Java objects and services: Set, Multimap, SortedSet, Map, List, Queue, Deque, Semaphore, Lock, AtomicLong, Map Reduce, Publish / Subscribe, Bloom filter, Spring Cache, Tomcat, Scheduler, JCache API, Hibernate, MyBatis, RPC, local cache ...
H2 - H2 is an embeddable RDBMS written in Java.
Spring Data JPA - Simplifies the development of creating a JPA-based data access layer.
Realm - Realm is a mobile database: a replacement for SQLite & ORMs
OrientDB - OrientDB is the most versatile DBMS supporting Graph, Document, Reactive, Full-Text and Geospatial models in one Multi-Model product. OrientDB can run distributed (Multi-Master), supports SQL, ACID Transactions, Full-Text indexing and Reactive Queries.
Jedis - Redis Java client
MariaDB4j - MariaDB Embedded in Java JAR
OBridge - Java code generator for calling PL/SQL.
JetBrains Xodus - Transactional schema-less embedded database used by JetBrains YouTrack and JetBrains Hub.