Hello,
I'm curious if something like CRIU [1] would work for you? It also has
integration with several container runtimes, like lxc [2], docker [3] or
podman [4].
I'm not a CRIU developer, but rather interested in different use cases
for C/R solutions.
1. https://criu.org/Main_Page
2. https://linuxcontainers.org/
3. https://www.docker.com/
4. https://podman.io/
On 16/01/2020 20:59, Andrew Lynch wrote:
Hi Folks,
We are checkpointing very large processes that use more than half the
available memory on our hosts. We utilize vfork/exec to launch small
processes. Vfork is mapped to fork in execwrappers.cpp:
extern "C" pid_t vfork()
{
JTRACE("vfork wrapper calling fork");
// This might not preserve the full semantics of vfork.
// Used for checkpointing gdb.
return fork();
}
Fork checks for available memory to duplicate the process and fails if
not enough memory exists (even though the required memory for the new
process is very small). Is there a way to use vfork? Has anyone tried
removing this mapping?
Regards,
Drew
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Regards,
Maksym Planeta
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