LevelDB
rqlite
| LevelDB | rqlite | |
|---|---|---|
| 27 | 112 | |
| 35,130 | 14,898 | |
| 0.5% | 0.7% | |
| 0.0 | 9.9 | |
| 7 days ago | about 22 hours ago | |
| C++ | Go | |
| BSD 3-clause "New" or "Revised" License | MIT 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.
LevelDB
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Codebases to read
I'm partial to how cleanly written https://github.com/google/leveldb is. It is a reasonable size to fully read & grok in not too long.
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Unpacking LSM-Trees: The Powerhouse Behind Modern Databases
[4] leveldb/doc/impl.md at main · google/leveldb. GitHub. Retrieved October 21, 2023 from https://github.com/google/leveldb/blob/main/doc/impl.md
- Bloom filter support to leveldb by Sanjay Ghemawat
- SQLite performance tuning: concurrent reads, multiple GBs and 100k SELECTs/s
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The Witty Guide to Installing LevelDB on Ubuntu: HostRooster® Edition
git clone https://github.com/google/leveldb.git
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Is there a lightweight, stable and embedded database library?
leveldb?
- Ask HN: What's the best source code you've read?
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LevelDB VS ZoneTree - a user suggested alternative
2 projects | 22 Aug 2022
- Is Mongo as popular in the job world as it is with tutorial makers?
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Open Source Databases in Go
goleveldb - Implementation of the LevelDB key/value database in Go.
rqlite
- The lightweight, easy-to-use, distributed relational database built on SQLite
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CursusDB – A new scalable distributed document oriented database
Seems like you could do the same with rqlite [1], since SQLite supports JSON.
[1]: https://rqlite.io
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Rqlite 8.0
rqlite[1] creator here, happy to answer any questions about rqlite, this latest release, and how it works.
[1] https://rqlite.io
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Adding new database engine support
I found simple distributed RQlite https://github.com/rqlite/rqlite based on raft and sqlite. How hard is to add it?
- I'm All-In on Server-Side SQLite
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So, you want to deploy on the edge?
rqlite[1] creator here, happy to answer any questions. rqlite also supports read-only nodes, which can also help with reads at the "edge". It probably wouldn't scale to 100s of nodes, it is an option.
"rqlite supports adding read-only nodes. You can use this feature to add read scalability to the cluster if you need a high volume of reads, or want to distribute copies of the data nearer to clients – but don’t want those nodes counted towards the quorum. These types of nodes are also known as non-voting nodes."
[1] https://rqlite.io/
[2] https://rqlite.io/docs/clustering/read-only-nodes/
- LiteFS Cloud: Distributed SQLite with Managed Backups
- Show HN: Rqlite, distributed DB built on SQLite, now runs on MIPS, RISC, PowerPC
- rqlite v7.19.0: the lightweight distributed relational database built on Go, Raft, and SQLite -- now runs on MIPS, PowerPC, and RISC
- rqlite v7.18: the lightweight distributed database built on Go, Raft, and SQLite -- now with new Unified HTTP endpoint for easy reads and writes
What are some alternatives?
RocksDB - A library that provides an embeddable, persistent key-value store for fast storage.
dqlite - Embeddable, replicated and fault-tolerant SQL engine.
MongoDB - The MongoDB Database
litestream - Streaming replication for SQLite.
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.
cockroach - CockroachDB - the open source, cloud-native distributed SQL database.
SQLite - Unofficial git mirror of SQLite sources (see link for build instructions)
bolt
LMDB - Read-only mirror of official repo on openldap.org. Issues and pull requests here are ignored. Use OpenLDAP ITS for issues.
etcd - Distributed reliable key-value store for the most critical data of a distributed system [Moved to: https://github.com/etcd-io/etcd]
CouchDB - Seamless multi-master syncing database with an intuitive HTTP/JSON API, designed for reliability
TinyGo - Go compiler for small places. Microcontrollers, WebAssembly (WASM/WASI), and command-line tools. Based on LLVM.