Event Store
KurrentDB is a database that's engineered for modern software applications and event-driven architectures. Its event-native design simplifies data modeling and preserves data integrity while the integrated streaming engine solves distributed messaging challenges and ensures data consistency. (by kurrent-io)
JCTools | Event Store | |
---|---|---|
2 | 5 | |
3,675 | 5,569 | |
0.0% | 0.7% | |
4.7 | 9.7 | |
about 1 year ago | 5 days ago | |
Java | C# | |
Apache License 2.0 | GNU General Public License v3.0 or later |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
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.
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.
JCTools
Posts with mentions or reviews of JCTools.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-10-11.
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if you had to restart at 0 knowledge what would you do?
Install some tool that would help you see the performance of your system, like a graph of the CPU usage, the top processes being used, disk activity/read/write, etc. Every time you run your program, glance at those numbers, eventually you'll develop an intuition. Basically write code and profile. A good exercise would be practicing with data structures, this site has an exhaustive list of them, find some stuff that's interesting then google the implementation, then build it yourself, test it, debug, profile, optimize, and understand the performance constraints. Eventually you'll develop better understanding and can compare between other people's works, optimizing them. If you want to go beyond, read some papers on lock-free algorithms https://github.com/JCTools/JCTools/tree/master/resources then read Brendan Gregg's blog and books. Read about how profiling tools work https://github.com/andikleen/pmu-tools/wiki/toplev-manual
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What do implementations that use Unsafe do to be able to compile?
If I fork this implementation's repo and then publish a release (of the forked version) with my own commits via jitpack.io (committing with Android Studio IDE).
Event Store
Posts with mentions or reviews of Event Store.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-10-11.
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Event Store State of the Art
I've been doing some research and found this: https://github.com/EventStore/EventStore
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if you had to restart at 0 knowledge what would you do?
C#: In Europe, Java is still strong but many trading firms use C# because of the strong Microsoft culture in Europe, as well as because of strongly supported C# libraries like say EventStore, which tends to be used for the matchmaking engines for stock exchanges (especially that exchange matchmaking problem is basically SMR). And skimming over the code, it has Paxos implemented too, making it good for dealing with partial failures (failover), essential for any HFT/trading firm. C#'s also the biggest ecosystem that many of the breakthrough java tech mentioned earlier was first ported to.
- Call for Help - Open Source Datom/EAV/Fact database in Rust.
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Event sourcing two years later (almost)
Support for eventstore.com eventstore. esdb
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3 reasons to adopt Event Sourcing
Where's the catch, then? Well, there's a couple of catches, in fact. First of all, in a distributed setting, appending data to a log isn't that easy. First, you need to make your log distributed. Again, Kafka/Cassandra/EventStore make this possible, however, whenever you start dealing with distributed data, you‘re introducing new operational and implementation complexity.
What are some alternatives?
When comparing JCTools and Event Store you can also consider the following projects:
Disruptor - High Performance Inter-Thread Messaging Library
Marten - .NET Transactional Document DB and Event Store on PostgreSQL
Agrona - High Performance data structures and utility methods for Java
LiteDB - LiteDB - A .NET NoSQL Document Store in a single data file
Koloboke - Java Collections till the last breadcrumb of memory and performance
RavenDB - ACID Document Database