[lxc-users] "lxc delete" freezes sometimes

[Tomasz Chmielewski]

"lxc delete containername --force" is sometimes freezing and does not 
return.



ii  lxd                              2.20-0ubuntu4~16.04.1               
        amd64        Container hypervisor based on LXC - daemon
ii  lxd-client                       2.20-0ubuntu4~16.04.1               
        amd64        Container hypervisor based on LXC - client

ii  liblxc1                          2.1.1-0ubuntu1~ubuntu16.04.1~ppa1   
        amd64        Linux Containers userspace tools (library)
ii  lxc-common                       2.1.1-0ubuntu1~ubuntu16.04.1~ppa1   
        amd64        Linux Containers userspace tools (common tools)
ii  lxcfs                            2.0.8-1ubuntu2~ubuntu16.04.1~ppa1   
        amd64        FUSE based filesystem for LXC


Server is hosted on AWS and is running linux-image-4.4.0-1043-aws kernel 
(Ubuntu 16.04).

Container's /var/log/lxd/containername/lxc.log comtains:

             lxc 20171217104137.857 WARN     lxc_monitor - 
monitor.c:lxc_monitor_fifo_send:111 - Failed to open fifo to send 
message: No such file or directory.
             lxc 20171217104137.857 WARN     lxc_monitor - 
monitor.c:lxc_monitor_fifo_send:111 - Failed to open fifo to send 
message: No such file or directory.
             lxc 20171217104137.978 WARN     lxc_monitor - 
monitor.c:lxc_monitor_fifo_send:111 - Failed to open fifo to send 
message: No such file or directory.
             lxc 20171217104137.978 WARN     lxc_monitor - 
monitor.c:lxc_monitor_fifo_send:111 - Failed to open fifo to send 
message: No such file or directory.
             lxc 20171219063617.834 WARN     lxc_monitor - 
monitor.c:lxc_monitor_fifo_send:111 - Failed to open fifo to send 
message: No such file or directory.
             lxc 20171221100816.533 WARN     lxc_monitor - 
monitor.c:lxc_monitor_fifo_send:111 - Failed to open fifo to send 
message: No such file or directory.



Not sure how to debug this.

It kills our server deployment / automation.


Tomasz Chmielewski
https://lxadm.com