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[https://openvz.org OpenVZ] (Open Virtuozzo) is an operating system-level virtualization technology for Linux. It uses CRIU and [[P.Haul]] to live-migrate containers.
[https://openvz.org OpenVZ] (Open Virtuozzo) is an operating system-level virtualization technology for Linux. It uses CRIU and [[P.Haul]] to live-migrate containers.
== Virtuozzo's CRIU ==
[https://src.openvz.org/projects/OVZ/repos/criu/branches The CRIU fork ]
[https://src.openvz.org/projects/OVZ/repos/p.haul/browse The P.Haul fork ]
Because not all features implemented in Open Virtuozzo are merged into vanilla kernel yet, it's been adopted to create a fork of CRIU with Virtuozzo specific patched on top of vanilla instance. The [https://src.openvz.org/scm/ovz/criu.git CRIU-VZ] is open project of course with the following branches:
* '''master''' — is a copy of the vanilla master branch
* '''vz7-rtm''' — Virtuozzo 7 criu instance
* '''vz7-u1''' — current stable branch of Virtuozzo 7 with patches which will come into next Virtuozzo update
The vanilla CRIU is a fast pacing project so for the Virtuozzo instance we take a version behind as a base (currently it is v2.5). We sacrifice functionality for stability reason - all the problems found during intensive testing are fixed in the Virtuozzo instance first, while merging them upstream may take up to months.
== Virtuozzo's P.Haul ==
[https://src.openvz.org/projects/OVZ/repos/p.haul/browse The P.Haul fork]