kvrocks
Memcached
kvrocks | Memcached | |
---|---|---|
23 | 56 | |
3,264 | 13,236 | |
7.6% | 0.9% | |
9.6 | 8.4 | |
4 days ago | 7 days ago | |
C++ | C | |
Apache License 2.0 | BSD 3-clause "New" or "Revised" License |
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.
kvrocks
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Redis Re-Implemented with SQLite
I switched from SSDB to Kvrocks recently, because SSDB is abandoned and the author missing for 3 years now. I used to recommend SSDB, but now there's better alternatives available:
https://github.com/apache/kvrocks
https://github.com/sabledb-io/sabledb
- Apache Kvrocks is a distributed key value NoSQL database that uses RocksDB as s
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Five Apache projects you probably didn't know about
Another under the radar Apache project I've found myself using is Apache KvRocks
https://github.com/apache/kvrocks
It's a Redis compatible database on top of RocksDB, so unlike Redis it uses the disk instead of RAM, but you can control how much data is cached in RAM, obviously Kvrocks will be slower than Redis for uncached data.
Useful in situations where you want a KV data store that isn't limited by your memory specs but is compatible with everything that speaks Redis.
- Redis as a Database
- Apache Kvrocks: distributed store using RocksDB, Redis compatible protocol
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Ask HN: Why are there no open source NVMe-native key value stores in 2023?
There’s Kvrocks. It uses the Redis protocol and it’s built on RocksDB https://github.com/apache/kvrocks
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Getting started with Kvrocks and go-redis
Apache Kvrocks is a distributed key-value NoSQL database that uses RocksDB as a storage engine and is compatible with Redis protocol.
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The first version of Redis, written in Tcl
We use Kvrocks[0] at work. It is Redis on disk, powered by "RocksDB" (hence the name) and compatible with most of the Redis clients since it respects the Redis protocol. It was incubated by Apache earlier this year.
It works great and the development is really active.
[0]: https://kvrocks.apache.org
- Kvrocks 2.0.6 is released
- Kvrocks 2.0.5 has integrated the RocksDB's blob db
Memcached
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System Design: Databases and DBMS
Memcached
- Redis Re-Implemented with SQLite
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Best engineering interview question I've gotten
> Multiple clients racing can't be fixed.
Really? You can't think of a single way for multiple clients to operate on the same data without racing? (Here's a hint if you're still having trouble: https://github.com/memcached/memcached/wiki/Commands#cas.)
- Memcached 1.6.25 Release Notes
- Memcached 1.6.24 Release Notes
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How to choose the right type of database
Memcached: A simple, open-source, distributed memory object caching system primarily used for caching strings. Best suited for lightweight, non-persistent caching needs.
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Sieve is simpler than LRU
Oh, thank you! I didn't realize that LRU Maintainer Thread was more than an expiration reaper. When it was first being introduced that was its first responsibility as lazy expiration removal by size eviction meant dead entries wasted capacity. It was all work in progress when I had read about it [1] and talked to dormando, so it got fuzzy. The compat code [2, 3] might have also thrown me off if I only looked at the setting and not the usage. Its a neat variant to all of these ideas.
[1] https://github.com/memcached/memcached/pull/97
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A Developer's Journal: Simplifying the Twelve-Factor App
stores session state in a session store like Memcached or Redis.
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In-memory database Redis wants to dabble in disk
memcached has recently gained the ability to spill to disk: https://github.com/memcached/memcached/wiki/Extstore
we recently implemented this to grow our caches to >50TB
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Django Caching 101: Understanding the Basics and Beyond
Django supports using Memcached as a cache backend. Memcached is a high-performance, distributed memory caching system that can be used to store cached data across multiple servers.
What are some alternatives?
Tendis - Tendis is a high-performance distributed storage system fully compatible with the Redis protocol.
Varnish - The project homepage
SSDB - SSDB - A fast NoSQL database, an alternative to Redis
node-cache - A simple in-memory cache for nodejs
pika - Pika is a Redis-Compatible database developed by Qihoo's infrastructure team.
dragonfly - A modern replacement for Redis and Memcached
pika - An open-source colour picker app for macOS
node-cache - a node internal (in-memory) caching module
fastonosql_gui - FastoNoSQL is a crossplatform Redis, Memcached, SSDB, LevelDB, RocksDB, UnQLite, LMDB, ForestDB, Pika, Dynomite, KeyDB GUI management tool.
KeyDB - A Multithreaded Fork of Redis
Redis - Redis is an in-memory database that persists on disk. The data model is key-value, but many different kind of values are supported: Strings, Lists, Sets, Sorted Sets, Hashes, Streams, HyperLogLogs, Bitmaps.