noisepage
LevelDB
noisepage | LevelDB | |
---|---|---|
4 | 27 | |
1,677 | 35,130 | |
- | 0.7% | |
0.0 | 0.0 | |
over 1 year ago | 10 days ago | |
C++ | C++ | |
MIT License | 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.
noisepage
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The Part of PostgreSQL We Hate the Most (Multi-Version Concurrency Control)
> Carne
Okay, so, noisepage appears to be open source https://github.com/cmu-db/noisepage/
But I can't find the Ottertune Github page
Is any part of Ottertune open source?
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Rethinking Stream Processing and Streaming Databases
I was one of the main authors of a research project called Peloton (https://github.com/cmu-db/peloton) which was later rebranded to NoisePage (https://github.com/cmu-db/noisepage). The initial version of RisingWave actually borrowed a lot from Peloton (fun fact: that's also how DuckDB https://duckdb.org/ started!), but we decided to rewrite in Rust due to development cost and security (e.g., memory leakage) considerations (more info: https://www.risingwave-labs.com/blog/building-a-cloud-database-from-scratch-why-we-moved-from-cpp-to-rust/).
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Show HN: OtterTune – Automated Database Tuning Service for RDS MySQL/Postgres
> If I may, can you please shed light on why Peloton had to be archived and in essence re-done with OtterTune. Interested in your team's learnings from it from a software engineering point of view.
Peloton and OtterTune are completely different projects. Peloton was abandoned and rewritten as NoisePage (https://noise.page). OtterTune has always been OtterTune.
See this recent interview where I discuss why we gave up on Peloton:
https://www.ibm.com/cloud/blog/database-deep-dives-with-andy...
> - How did the team ensure this project doesn't suffer from the same disadvantages as its predecessor?
Again, different projects. OtterTune is all about not having to modify the internals of Postgres, MySQL, and any other DBMS. This is why we were able to support Oracle in the academic version in a short amount of time:
https://ottertune.com/blog/vldb-autonomous-database-tuning-i...
> - What would you advise other teams undertaking a rewrite to pay off their tech debts?
It is hard for to provide general advice for this question because every situation is different.
> How does this project compare to / contrast with Google's and SingleStore's efforts in this space?
I am not familiar with Google or SingleStore using ML in the manner that we are with OtterTune to tune configuration knobs. Or at least I have not seen anything public about it.
These days Oracle is the most aggressive with pushing automated tuning capabilities (Oracle's autonomous DBaaS, AutoPilot for MySQL Heatwave). The difference with these approaches and OtterTune is that right now we are focused on configuration tuning (to avoid data privacy issues) and our core approach is platform/DBMS agnostic.
> Any chance we see you do a Peter Bailis and Sisu Data this? (:
I don't know what you mean by this? Peter Bailis is the Ryan Gosling of databases.
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Resumable Allocator?
The state of the art for this sort of thing is (Leanstore/Umbra - https://umbra-db.com/) or the new NoisePage database (https://github.com/cmu-db/noisepage/tree/master/src/storage). There is also the HyRise database, but that one focuses more on datasets that fit entirely in memory (https://hpi.de/plattner/projects/hyrise.html)
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.
What are some alternatives?
openstack-ansible-os_trove - Role os_trove for OpenStack-Ansible. Mirror of code maintained at opendev.org.
RocksDB - A library that provides an embeddable, persistent key-value store for fast storage.
sled - the champagne of beta embedded databases
MongoDB - The MongoDB Database
bustub - The BusTub Relational Database Management System (Educational)
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.
SQLite - Unofficial git mirror of SQLite sources (see link for build instructions)
ClickHouse - ClickHouse® is a free analytics DBMS for big data
LMDB - Read-only mirror of official repo on openldap.org. Issues and pull requests here are ignored. Use OpenLDAP ITS for issues.
CouchDB - Seamless multi-master syncing database with an intuitive HTTP/JSON API, designed for reliability
Apache Cassandra - Mirror of Apache Cassandra