criu | sdk-java | |
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14 | 47 | |
2,663 | 193 | |
1.7% | 1.6% | |
8.9 | 8.6 | |
10 days ago | 3 days ago | |
C | Java | |
GNU General Public License v3.0 or later | Apache License 2.0 |
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criu
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When "letting it crash" is not enough
Checkpoint/Restore I feel is a bigger concept than just saving state. At the zeroth level it's a system that can correctly stop and serialize a running process (as criu https://github.com/checkpoint-restore/criu has shown is a huge pain in the ass to still not be perfect) in a way that can initiated from within the process itself.
The 1st level more-work-but-easier way to do this is to build or use a heavily constrained VM/language you run from within your main application that doesn't allow for most of the hard problems to even exist.
I can't find any ready-made tools to do this that I wouldn't consider an endeavor.
- CRIU β Checkpoint/restore Linux tasks
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Live Switching Pods to another Node on Resource Limits
That being said the Checkpoint Restore In Userspace project has been around for a number of years and is the closest thing to what you are talking about: taking a linux process on one machine and moving it to another. It is messy but can be done in some cases. There are folks looking at how to integrate CRIU with k8s but itβs all research at this point.
- Criu: Checkpoint/Restore Functionality for Linux
- checkpoint-restore/criu: Checkpoint/Restore tool
- checkpoint-restore/criu: Linux Checkpoint/Restore tool
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The intersection of shadow stacks and CRIU
I would love to make more use of CRIU. E.g. I considered to use CRIU for my Python preloaded logic (https://github.com/albertz/python-preloaded). Unfortunately, at that point in time, CRIU must be used with root access, which was not an option. However, I see that the PR was merged now, so maybe it works now? (https://github.com/checkpoint-restore/criu/pull/1930)
There is also DMTCP (https://github.com/dmtcp/dmtcp/) but this might have other problems for my use case.
My solution was to use a fork server instead, which works almost equally well. There are not really much downsides with this approach. And this is actually quite simple, and also quite cross-platform (except Windows).
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Python Preloaded
CRIU currently needs root access for dump/restore. However, there is ongoing work to support a non-root option in https://github.com/checkpoint-restore/criu/pull/1930.
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How-to "freeze" a process to disk?
There have been multiple checkpointing attempts over the years. Criu is the only one I know of that's still kicking. That's probably your best and only bet.
- I made a plugin to suspend games and apps similar to how consoles do (Deck Suspender)
sdk-java
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Show HN: Hatchet β Open-source distributed task queue
How does this compare against Temporal/Cadence/Conductor? Does hatchet also support durable execution?
https://temporal.io/
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When "letting it crash" is not enough
Flawless sounds a lot like https://temporal.io/ .
I'm wondering if it has the same scalability concerns - sticking everything in Postgres is fine at small-ish scale, but what happens when you outgrow Postgres, either because you have higher availability requirements (can't handle primary DB restarts) or because of the sheer volume of the workload?
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How To Collect Temporal.io Logs Using Axiom And Pino
Temporal is a scalable and reliable runtime for durable Workflow Executions. It enables you to develop as if failures don't even exist. I started exploring it over the Christmas holiday and using it for a recently open-sourced project.
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Ask HN: How have you implemented human-in-the-loop workflows?
I have my eyes on https://temporal.io/ for similar purposes.
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Which queue System you prefer for ecommerce and PS
Check out temporal.io open source project for a much cleaner solution using Durable Execution abstraction.
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StackStorm β IFTTT for Ops
Interesting to see Netflix featured both on StackStorm & https://temporal.io/ frontpages.
- Open source durable execution platform
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Leveraging Temporal for resilient remote procedure calls (RPC)
Our stack at Escape is written in multiple languages because each team has specific needs. We use TypeScript for its vibrant ecosystem, Python for cybersecurity research and Go for performance-sensitive tasks. To orchestrate cross-language task orchestration, we first developed a simple request-response protocol over HTTP, but it wasn't sustainable as the Escape codebase grew rapidly. We evaluated several technologies to replace our homegrown protocol, and two emerged as the most promising options: Connect and Temporal. The title gives it away, but the reason is far from obvious
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Ask HN: In which areas have you compared 3+ tools and formed strong preferences?
I've put a lot of time into Airflow and feel similarly that it's a huge pain and a risk to rely on it. I've replaced it with Temporal (https://temporal.io/) and while I don't have the breadth of experience with the frameworks you listed, I do think Temporal is a great replacement for Airflow.
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Inngest raises $3M seed to build the reliable workflow platform for every dev
Just to confirm my understanding; would you consider at least part of your product offering to be similar to temporal.io [1]? Your examples are reminiscent of theirs.
[1] https://temporal.io/
What are some alternatives?
nyrna - Suspend games and applications.
sdk-python - Temporal Python SDK
FitM - FitM, the Fuzzer in the Middle, can fuzz client and server binaries at the same time using userspace snapshot-fuzzing and network emulation. It's fast and comparably easy to set up.
trigger.dev - Trigger.dev is the open source background jobs platform for TypeScript.
Regshot-Advanced - This is a fork of Regshot (original found at https://sourceforge.net/projects/regshot/) with very enhanced functionality.
sdk-python - Python library for Modzy Machine Learning Operations (MLOps) Platform
fpart - Sort files and pack them into partitions
windmill - Open-source developer platform to turn scripts into workflows and UIs. Fastest workflow engine (5x vs Airflow). Open-source alternative to Airplane and Retool.
DashLoader - Launch at the speed of light.
inngestgo - Golang SDK for Inngest
nginx-link-function - It is a NGINX module that provides dynamic linking to your application in server context and call the function of your application in location directive
litestream - Streaming replication for SQLite.