Checkpoint/restart using Core Dump in Linux

Question

Can Checkpoint/restart be implemented using the core dump of a process? The core file contains a complete memory dump of the process, thus in theory it should be possible t

Answer 1

Debian has a number of packages you might want to look at :

1. blcr-util - Userspace tools to Checkpoint and Restart Linux processes

This is related to BLCR (Berkeley Lab Checkpoint/Restart) , see https://upc-bugs.lbl.gov/blcr/doc/html/FAQ.html#whatisblcr

2. criu - checkpoint and restore in userspace https://criu.org/Main_Page

   2.1 docker -supports checkpointing in recent versions, see https://criu.org/Docker

   2.1. containerd - daemon to control runC

this contains a checkpointing facility that is interesting.

See also openvz that supports live migration: https://openvz.org/Checkpointing_and_live_migration