criu | Checkpoint/Restore tool

by checkpoint-restore C Version: v3.18 License: Non-SPDX

X-Ray Key Features Code Snippets Community Discussions(4)Vulnerabilities Install Support

kandi X-RAY | criu Summary

criu is a C library. criu has no bugs, it has no vulnerabilities and it has medium support. However criu has a Non-SPDX License. You can download it from GitHub.

CRIU (stands for Checkpoint and Restore in Userspace) is a utility to checkpoint/restore Linux tasks. Using this tool, you can freeze a running application (or part of it) and checkpoint it to a hard drive as a collection of files. You can then use the files to restore and run the application from the point it was frozen at. The distinctive feature of the CRIU project is that it is mainly implemented in user space. There are some more projects doing C/R for Linux, and so far CRIU appears to be the most feature-rich and up-to-date with the kernel. CRIU project is (almost) the never-ending story, because we have to always keep up with the Linux kernel supporting checkpoint and restore for all the features it provides. Thus we're looking for contributors of all kinds -- feedback, bug reports, testing, coding, writing, etc. Please refer to CONTRIBUTING.md if you would like to get involved. The project started as the way to do live migration for OpenVZ Linux containers, but later grew to more sophisticated and flexible tool. It is currently used by (integrated into) OpenVZ, LXC/LXD, Docker, and other software, project gets tremendous help from the community, and its packages are included into many Linux distributions.

Support

Quality

Security

License

Reuse

Support

criu has a medium active ecosystem.

It has 2219 star(s) with 471 fork(s). There are 70 watchers for this library.

It had no major release in the last 6 months.

There are 147 open issues and 1089 have been closed. On average issues are closed in 261 days. There are 35 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of criu is v3.18

Quality

criu has 0 bugs and 0 code smells.

Security

criu has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

criu code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

criu has a Non-SPDX License.

Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

Reuse

criu releases are not available. You will need to build from source code and install.

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criu Key Features

No Key Features are available at this moment for criu.

criu Examples and Code Snippets

No Code Snippets are available at this moment for criu.

Community Discussions

Trending Discussions on criu

How to avoid auto-generate a ".cold" symbol which causes redefined error

Podman unable to mount local file into container

How to compile OpenJDK with OpenJ9 on Linux without a NUMA error?

unable to write /proc/sys/kernel/ns_last_pid file

QUESTION

How to avoid auto-generate a ".cold" symbol which causes redefined error

Asked 2021-Dec-28 at 08:30

I tried to modify a part of code of a project "CRIU", whose code is in https://github.com/checkpoint-restore/criu. I changed some codes in criu/pie/restorer.c, in detail, I add some new variables in function __export_restore_task. However, when compiling the project, using a gcc-9 would produce an error as below.

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ANSWER

Answered 2021-Dec-25 at 07:07

#define restorer_sym__export_restore_task.cold 0x47a1

Source https://stackoverflow.com/questions/70478027

QUESTION

Podman unable to mount local file into container

Asked 2021-Dec-20 at 07:31

I'm planning to move away from Docker to Podman. I use docker-compose a lot so am planning to switch to podman-compose as well.

However I'm stuck at the simplest of podman examples, I can't seem to mount a volume onto my container? Obviously I'm doing something wrong however I cant figure out what it is.

My source file definitely exists on my (hardware) host (so not the podman machine). but I keep getting the error 'no such file or directory'.

Funny thing is if I manually create the same file locally on the podman machine (podman machine ssh --> touch /tmp/test.txt) it works perfectly fine.

Question is;

should I (manually?) mount all my local files onto the Fedora VM (podman machine) so that in turn this Fedora mount can be used in my actual container? and if so, how do I do this?
The podman run cmd below should work and there is something else I'm doing wrong?

...

ANSWER

Answered 2021-Dec-20 at 07:31

As mentioned by @ErikSjölund there has been an active treat on https://github.com/containers/podman. Apparantely Centos (Podman Machine) does not (yet) support different types of volume creation on the machine.

It's not perse Podman lacking this feature it's waiting for CentOS to support this feature as well.

However, should you want to mount a local directory onto the machine I recommend have a look at https://github.com/containers/podman/issues/8016#issuecomment-995242552. It describes how to do a read-only mount on CoreOS (or break compatibility with local version).

Info:

https://github.com/containers/podman/pull/11454 https://github.com/containers/podman/pull/12584

Source https://stackoverflow.com/questions/70275279

QUESTION

How to compile OpenJDK with OpenJ9 on Linux without a NUMA error?

Asked 2021-Nov-26 at 06:33

Hello Stackoverflowers!
I am trying to build the OpenJDK with OpenJ9 on Linux, but when I run the configure script, I get the error:

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ANSWER

Answered 2021-Nov-26 at 06:33

It looks like I didn't install the package "numactl" for some reason.

Just double check if you have those packages installed with (On Archbased)

Source https://stackoverflow.com/questions/70054884

QUESTION

unable to write /proc/sys/kernel/ns_last_pid file

Asked 2020-Sep-04 at 14:02

I want to edit the ns_last_pid file present in /proc/sys/kernel, but i'm getting the error of Read-only file system. How to resolve this? This is what i've written to open the file.

...

ANSWER

Answered 2020-Sep-04 at 14:02

For a program to change kernel files, it should be owned by root

sudo chown root program // program is the executable(the binary)
set the setuid bit on the executable to execute a program with superuser access. with this it will run as root even if we execute it as any user on our machine.

sudo chmod u+s program

Compile the source code and run the program with sudo to prevent other permission access errors.

Thanks to TedLyngmo for suggesting this solution.

Source https://stackoverflow.com/questions/63738738

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install criu

You can download it from GitHub.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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