<div dir="ltr">Could you share the version of Docker you were running, along with the commands you used to invoke the checkpoint and restore?</div><br><div class="gmail_quote"><div dir="ltr">On Fri, Sep 22, 2017 at 8:05 AM Alice Frosi <<a href="mailto:alice@linux.vnet.ibm.com">alice@linux.vnet.ibm.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
<br>
We have started to test docker checkpoint with a real-world workloads.<br>
<br>
Until now we tried with acmeair-nodejs [1] with the microservice usecase.<br>
<br>
This application creates 10 containers and they interact between each other with volumes and network<br>
<br>
connection. The checkpoint war not successful. Here, the error message in restore:<br>
<br>
(00.195135) 1: No iptables-9.img image<br>
<br>
(00.195136) 1: Error (criu/include/image.h:144): BUG at criu/include/image.h:144<br>
<br>
(00.195171) Error (criu/cr-restore.c:1284): 15638 killed by signal 127: Unknown signal 127<br>
<br>
(00.315156) Error (criu/mount.c:2980): mnt: Can't remove the directory /tmp/.criu.mntns.C12otH: No such file or directory<br>
<br>
(00.315160) Error (criu/cr-restore.c:2152): Restoring FAILED.<br>
<br>
We tested with criu version:<br>
<br>
Version: 3.4<br>
<br>
GitID: v3.4-224-g3706af7b<br>
<br>
1) Any ideas for what could have caused the error?<br>
<br>
Additionally, we have two more general questions.<br>
<br>
2) How should we perform checkpoint for applications with multiple container interaction?<br>
<br>
3) For which use cases have you already tried the C/R?<br>
<br>
We saw this overview in your wiki [2], but it seems to be not recently updated.<br>
<br>
Regards<br>
<br>
Alice Frosi<br>
<br>
[1] <a href="https://github.com/blueperf/acmeair-nodejs/blob/master/README_Docker.md" rel="noreferrer" target="_blank">https://github.com/blueperf/acmeair-nodejs/blob/master/README_Docker.md</a><br>
[2] <a href="https://criu.org/What_software_is_supported" rel="noreferrer" target="_blank">https://criu.org/What_software_is_supported</a><br>
<br>
<br>
<br>
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</blockquote></div>