tarsnap
tigerbeetle
tarsnap | tigerbeetle | |
---|---|---|
11 | 37 | |
844 | 1,012 | |
0.4% | - | |
8.3 | 9.5 | |
24 days ago | over 1 year ago | |
C | Zig | |
GNU General Public License v3.0 or later | Apache License 2.0 |
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.
tarsnap
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Where do you store your backups? What Provider if any?
Tarsnap for configs and critical stuff (password database, emails).
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3,200-Year-Old Egyptian Tablet Records Excuses for Why People Missed Work
Someone does :)
https://tarsnap.com
> Tarsnap uses a prepaid model based on actual usage:
> Storage: 250 picodollars / byte-month of encoded data
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What is the best private encrypted cloud storage?
Colin Percival's tarsnap
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Ask HN: Codebases with great, easy to read code?
In past threads, people have mentioned enjoying my Tarsnap (https://github.com/Tarsnap/tarsnap) code. I personally think that the spiped (https://github.com/Tarsnap/spiped) code is even better.
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I love the idea of tarsnap but a stable release hasn't been released since 2017. Is there a modern alternative, or is tarsnap actually still usable and secure?
I prefer Vorta myself ( https://github.com/borgbase/vorta ) as it also has incremental and encrypted backups, as well as being a fraction of the price, but tarsnap seems to still be in very-slow development: https://github.com/Tarsnap/tarsnap , so I'd say from a quick look it's still trustworthy.
- Restic: Backups Done Right
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What's your backup strategy?
Each server also upload their configs and « important » data (my mails and git repos) to tarsnap 3. Tarsnap storage is not as cheap as B2, so I try not to upload too much data there, but it's reliable and easy to use. It was also my first backup solution, and barely cost me 10$ a year so I keep it as a secondary backup.
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FreeBSD SSH Hardening
Not foolish! The Tarsnap client code is open source, but the license file prohibits anyone from using the code: https://github.com/Tarsnap/tarsnap/blob/master/COPYING
> Redistribution and use in source and binary forms, without modification,
- Deduplicating Archiver with Compression and Encryption
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The Wrong Way to Switch Operating Systems on Your Server
Yes. For the curious,
https://github.com/Tarsnap/tarsnap/graphs/contributors
tigerbeetle
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SQLite Helps You Do Acid
Indeed!
I was so glad to see you cite not only the Rebello paper but also Protocol-Aware Recovery for Consensus-Based Storage. When I read your first comment, I was about to reply to mention PAR, and then saw you had saved me the trouble!
UW-Madison are truly the vanguard where consensus hits the disk.
We implemented Protocol-Aware Recovery for TigerBeetle [1], and I did a talk recently at the Recurse Center diving into PAR, talking about the intersection of global consensus protocol and local storage engine. It's called Let's Remix Distributed Database Design! [2] and owes the big ideas to UW-Madison.
[1] https://github.com/coilhq/tigerbeetle
[2] https://www.youtube.com/watch?v=rNmZZLant9o
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20 years of payment processing problems
> It sounds like payments might be part of the larger concept of declarative programming (DP)
Yes, exactly! The idea with TigerBeetle's state machine [1] is to expose double-entry accounting as higher level financial primitives, so that developers can think in terms of declaring transfers from one account to another. The business logic behind the scenes is detailed, but the interfaces and data structures are simple.
[1] https://github.com/coilhq/tigerbeetle/blob/main/src/state_ma...
> Maybe TigerBeetle could be generalized to support any multi-step distributed process?
That's part of the plan, that the distributed database framework of TigerBeetle can be used as a ”distributed Iron Man suit” to support any kind of state machine.
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How Safe Is Zig?
It's a pleasure. Let me know if you have any more questions about TigerBeetle. Our design doc is also here: https://github.com/coilhq/tigerbeetle/blob/main/docs/DESIGN....
- TigerStyle – TigerBeetle's coding style guide
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Distributed Systems Shibboleths
Surprisingly, some of the most powerful distributed systems algorithms or tools are actually deterministic. They're powerful because they can "load the dice" and so make the distributed system more intuitive for humans to reason about, more resilient to real world network faults, and do all this with more performance.
For example, Barbara Liskov and James Cowling's deterministic view change [1], which isn't plagued by the latency issues of RAFT's randomized dueling leader problem. Viewstamped Replication Revisited's deterministic view change can react to a failed primary much quicker than RAFT (heartbeat timeouts don't require randomized "padding" as they do in RAFT), commence the leader election, and also ensure that the leader election succeeds without a split vote.
Determinism makes all that possible.
Deterministic testing [2][3] is also your best friend when it comes to testing distributed systems.
[1] I did a talk on VSR, including the benefits of the view change — https://www.youtube.com/watch?v=Wii1LX_ltIs
[2] FoundationDB are pioneers of deterministic testing — https://www.youtube.com/watch?v=OJb8A6h9jQQ
[3] TigerBeetle's deterministic simulation tests — https://github.com/coilhq/tigerbeetle#simulation-tests
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Lies we tell ourselves to keep using Golang
This is the chasm problem, where people don't use a technology because people aren't using that technology, thus the technology has difficulty gaining adoption. I did see that Zig does have it's own killer app and startup that's using Zig: TigerBeattle.
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Ask HN: Codebases with great, easy to read code?
Control flow statements should always be on their own lines, then it's easy to find all of them by visually scanning top-down, without needing to look all the way down each line.
[1]: https://github.com/coilhq/tigerbeetle/blob/main/src/vsr/repl...
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Database functions to wrap logic and SQL queries
> In hindsight, data logic should be in the database itself.
This is the reason we are creating TigerBeetle [1] at Coil, as an open source distributed financial accounting database, with the double entry logic and financial invariants enforced through financial primitives within the database itself.
This is all the more critical for financial data, because raw data consistency is not enough for financial transactions, you also need financial consistency, not to mention immutability.
The performance of doing it this way is also easier. For example, around a million financial transactions per second on commodity hardware, with p100 latency around 10-20ms.
[1] https://github.com/coilhq/tigerbeetle
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Building Payment systems for the World at Hackathons
You probably already know this — because we’ve mentioned it a few times — but Coil champions and supports open-source projects and is privacy-first, by default. Over the years, Developer Relations at Coil has championed and sponsored teams that write Open Web Documentations and projects that empower open-source developers to get paid. Coil has also incubated many open-source projects like Tigerbeetle and Rafiki.
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Durability and Redo Logging
[6] Partial logical sector reads/writes even when using O_DIRECT — https://github.com/coilhq/tigerbeetle/blob/main/src/storage....
What are some alternatives?
BorgBackup - Deduplicating archiver with compression and authenticated encryption.
zig - General-purpose programming language and toolchain for maintaining robust, optimal, and reusable software.
restic - Fast, secure, efficient backup program
raft - Golang implementation of the Raft consensus protocol
rclone - "rsync for cloud storage" - Google Drive, S3, Dropbox, Backblaze B2, One Drive, Swift, Hubic, Wasabi, Google Cloud Storage, Azure Blob, Azure Files, Yandex Files
Co-dfns - High-performance, Reliable, and Parallel APL
bupstash - Easy and efficient encrypted backups.
raft-grpc-example - Example code for how to get hashicorp/raft running with gRPC
nixos-infect - [GPLv3+] install nixos over the existing OS in a DigitalOcean droplet (and others with minor modifications)
viewstamped-replication-made-famous - A $20k consensus challenge based on TigerBeetle's implementation of the pioneering Viewstamped Replication protocol. [Moved to: https://github.com/tigerbeetledb/viewstamped-replication-made-famous]
Duplicacy - A new generation cloud backup tool
LevelDB - LevelDB is a fast key-value storage library written at Google that provides an ordered mapping from string keys to string values.