Main Page

CRIU is a sub-project of http://static.openvz.org/wiki/openvz-logo.png

Welcome to CRIU, a project to implement checkpoint/restore functionality for Linux in userspace.

Download Tarball: criu-3.19.tar.gz Version: 3.19 "Bronze Peacock" Released: 27 Nov 2023 GIT tag: v3.19 Installation • Usage Releases

Using

CR tools

Main checkpoint/restore utility description (sort of HOWTO)

Usage scenarios

Ideas how crtools can be used (some are crazy indeed)

What software is supported

Describes TODO list in higher level terms

LXC

How to dump and restore an LXC container

Developing

If you're interested in CRIU development, please subscribe to the criu mailing list: https://openvz.org/mailman/listinfo/criu

Images

Description of image files format

Commits

Mainline kernel commits tracker

ZDTM Test Suite

Zero downtime test suite

TODO

Current TODO list

Events Linux Plumbers Conference 2023 18-20 Sep 2024, Containers and Checkpoint/Restore Microconference Other talks: * Userspace memory persistence over kexec * Checkpoint/Restore In eBPF (CRIB)

Under the hood

• Sockets
• Memory dumping and restoring
• Checkpoint/Restore
• TCP connection
• Porting crtools to new kernel releases
• Files

External links

• 2024-09-04, Towards Efficient End-to-End Encryption for Container Checkpointing Systems
• 2024-08-03, Software-based Live Migration for Containerized RDMA
• 2024-07-30, Don't, Stop, Drop, Pause: Forensics of CONtainer CheckPOINTs (ConPoint)
• 2024-07-25, MDB-KCP: persistence framework of in-memory database with CRIU-based container checkpoint in Kubernetes
• 2024-04-22, Just-In-Time Checkpointing: Low Cost Error Recovery from Deep Learning Training Failures
• 2024-04-22, Pronghorn: Effective Checkpoint Orchestration for Serverless Hot-Starts
• 2024-01-29, Prebaking runtime environments to improve the FaaS cold start latency
• 2023-11-12, Checkpoint/Restart for CUDA Kernels
• 2023-10-23, Evicting for the greater good: The Case for Reactive Checkpointing in Serverless Computing

More external articles...

Other

• Project history
• Logo description
• Events