sqlightning
litestream
sqlightning | litestream | |
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4 | 165 | |
299 | 10,026 | |
1.0% | - | |
10.0 | 7.5 | |
over 4 years ago | 15 days ago | |
C | Go | |
- | Apache License 2.0 |
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sqlightning
- SQLite: QEMU All over Again?
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Show HN: Lldap, a Simplified LDAP Server
I'm guessing you mean "and the software is fast enough", because OpenLDAP itself has been the world's fastest distributed database for over a decade, and nothing else even comes close.
Since you built on top of SQLite, then you're already at least an order of magnitude slower. You could speed it up a bit by using SQLightning, which replaces SQLite's Btree engine with OpenLDAP's.
https://github.com/LMDB/sqlightning
- Sqlightning: SQLite3 ported to use LMDB instead of its original Btree code
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SQLite B-Tree Module
This has been shared without context but I guess the SQLite team is starting to modularize the btree code in order to facilitate work like SQLightning: https://github.com/LMDB/sqlightning
At the time SQLightning greatly improved SQLite performance but due to LMDB's requirement to have keys fit in 2/3 of a page it wasn't really useful as a general purpose replacement of SQLite's internal b-tree implementation.
litestream
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Ask HN: SQLite in Production?
I have not, but I keep meaning to collate everything I've learned into a set of useful defaults just to remind myself what settings I should be enabling and why.
Regarding Litestream, I learned pretty much all I know from their documentation: https://litestream.io/
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How (and why) to run SQLite in production
This presentation is focused on the use-case of vertically scaling a single server and driving everything through that app server, which is running SQLite embedded within your application process.
This is the sweet-spot for SQLite applications, but there have been explorations and advances to running SQLite across a network of app servers. LiteFS (https://fly.io/docs/litefs/), the sibling to Litestream for backups (https://litestream.io), is aimed at precisely this use-case. Similarly, Turso (https://turso.tech) is a new-ish managed database company for running SQLite in a more traditional client-server distribution.
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SQLite3 Replication: A Wizard's Guide🧙🏽
This post intends to help you setup replication for SQLite using Litestream.
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Ask HN: Time travel" into a SQLite database using the WAL files?
I've been messing around with litestream. It is so cool. And, I either found a bug in the -timestamp switch or don't understand it correctly.
What I want to do is time travel into my sqlite database. I'm trying to do some forensics on why my web service returned the wrong data during a production event. Unfortunately, after the event, someone deleted records from the database and I'm unsure what the data looked like and am having trouble recreating the production issue.
Litestream has this great switch: -timestamp. If you use it (AFAICT) you can time travel into your database and go back to the database state at that moment. However, it does not seem to work as I expect it to:
https://github.com/benbjohnson/litestream/issues/564
I have the entirety of the sqlite database from the production event as well. Is there a way I could cycle through the WAL files and restore the database to the point in time before the records I need were deleted?
Will someone take sqlite and compile it into the browser using WASM so I can drag a sqlite database and WAL files into it and then using a timeline slider see all the states of the database over time? :)
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Ask HN: Are you using SQLite and Litestream in production?
We're using SQLite in production very heavily with millions of databases and fairly high operations throughput.
But we did run into some scariness around trying to use Litestream that put me off it for the time being. Litestream is really cool but it is also very much a cool hack and the risk of database corruption issues feels very real.
The scariness I ran into was related to this issue https://github.com/benbjohnson/litestream/issues/510
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Pocketbase: Open-source back end in 1 file
Litestream is a library that allows you to easily create backups. You can probably just do analytic queries on the backup data and reduce load on your server.
https://litestream.io/
- Litestream – Disaster recovery and continuous replication for SQLite
- Litestream: Replicated SQLite with no main and little cost
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Why you should probably be using SQLite
One possible strategy is to have one directory/file per customer which is one SQLite file. But then as the user logs in, you have to look up first what database they should be connected to.
OR somehow derive it from the user ID/username. Keeping all the customer databases in a single directory/disk and then constantly "lite streaming" to S3.
Because each user is isolated, they'll be writing to their own database. But migrations would be a pain. They will have to be rolled out to each database separately.
One upside is, you can give users the ability to take their data with them, any time. It is just a single file.
[0]. https://litestream.io/
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Monitor your Websites and Apps using Uptime Kuma
Upstream Kuma uses a local SQLite database to store account data, configuration for services to monitor, notification settings, and more. To make sure that our data is available across redeploys, we will bundle Uptime Kuma with Litestream, a project that implements streaming replication for SQLite databases to a remote object storage provider. Effectively, this allows us to treat the local SQLite database as if it were securely stored in a remote database.
What are some alternatives?
glauth - A lightweight LDAP server for development, home use, or CI
rqlite - The lightweight, distributed relational database built on SQLite.
libsql - libSQL is a fork of SQLite that is both Open Source, and Open Contributions.
pocketbase - Open Source realtime backend in 1 file
lumosql - Official Github Mirror of the LumoSQL Database Project (https://lumosql.org/src/lumosql)
realtime - Broadcast, Presence, and Postgres Changes via WebSockets
mvsqlite - Distributed, MVCC SQLite that runs on FoundationDB.
k8s-mediaserver-operator - Repository for k8s Mediaserver Operator project
wabt - The WebAssembly Binary Toolkit
sqlcipher - SQLCipher is a standalone fork of SQLite that adds 256 bit AES encryption of database files and other security features.
ardour - Mirror of Ardour Source Code
litefs - FUSE-based file system for replicating SQLite databases across a cluster of machines