Re: [lxc-users] lxc stop / lxc reboot hang

[Simos Xenitellis]

On Wed, Mar 1, 2017 at 1:56 PM, Tomasz Chmielewski  wrote:
> Again seeing this issue on one of the servers:
>
> - "lxc stop container" will stop the container but will never exit
> - "lxc restart container" will stop the container and will never exit
>
>
> # dpkg -l|grep lxd
> ii  lxd  2.0.9-0ubuntu1~16.04.2
> amd64Container hypervisor based on LXC - daemon
> ii  lxd-client   2.0.9-0ubuntu1~16.04.2
> amd64Container hypervisor based on LXC - client
>
>
> This gets logged to container log:
>
> lxc 20170301115514.738 WARN lxc_commands -
> commands.c:lxc_cmd_rsp_recv:172 - Command get_cgroup failed to receive
> response: Connection reset by peer.
>
>
> How can it be debugged?

Try

lxc stop --verbose --debug mycontainer

which should show the exact communication between the lxd-client and LXD.

Have a look at https://github.com/lxc/lxd/issues
I think the report titled "lxc stop waits indefinitely" is similar to
your issue.

Simos

>
> Tomasz
>
>
>
> On 2017-02-03 13:05, Tomasz Chmielewski wrote:
>>
>> On 2017-02-03 12:52, Tomasz Chmielewski wrote:
>>>
>>> Suddenly, today, I'm not able to stop or reboot any of containers:
>>>
>>> # lxc stop some-container
>>>
>>> Just sits there forever.
>>>
>>>
>>> In /var/log/lxd/lxd.log, only this single entry shows up:
>>>
>>> t=2017-02-03T03:46:20+ lvl=info msg="Shutting down container"
>>> creation date=2017-01-19T15:51:21+ ephemeral=false timeout=-1s
>>> name=some-container action=shutdown
>>>
>>>
>>> In /var/log/lxd/some-container/lxc.log, only this one shows up:
>>>
>>> lxc 20170203034624.534 WARN lxc_commands -
>>> commands.c:lxc_cmd_rsp_recv:172 - command get_cgroup failed to receive
>>> response
>>
>>
>> The container actually stops (it's in STOPPED state in "lxc list").
>>
>> The command just never returns.
>>
>>
>> Tomasz Chmielewski
>> https://lxadm.com
>> ___
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>> lxc-users@lists.linuxcontainers.org
>> http://lists.linuxcontainers.org/listinfo/lxc-users
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Re: [lxc-users] lxc stop / lxc reboot hang

[Tomasz Chmielewski]

Again seeing this issue on one of the servers:

- "lxc stop container" will stop the container but will never exit
- "lxc restart container" will stop the container and will never exit


# dpkg -l|grep lxd
ii  lxd  2.0.9-0ubuntu1~16.04.2  
amd64Container hypervisor based on LXC - daemon
ii  lxd-client   2.0.9-0ubuntu1~16.04.2  
amd64Container hypervisor based on LXC - client



This gets logged to container log:

lxc 20170301115514.738 WARN lxc_commands - 
commands.c:lxc_cmd_rsp_recv:172 - Command get_cgroup failed to receive 
response: Connection reset by peer.



How can it be debugged?

Tomasz


On 2017-02-03 13:05, Tomasz Chmielewski wrote:

On 2017-02-03 12:52, Tomasz Chmielewski wrote:

Suddenly, today, I'm not able to stop or reboot any of containers:

# lxc stop some-container

Just sits there forever.


In /var/log/lxd/lxd.log, only this single entry shows up:

t=2017-02-03T03:46:20+ lvl=info msg="Shutting down container"
creation date=2017-01-19T15:51:21+ ephemeral=false timeout=-1s
name=some-container action=shutdown


In /var/log/lxd/some-container/lxc.log, only this one shows up:

lxc 20170203034624.534 WARN lxc_commands -
commands.c:lxc_cmd_rsp_recv:172 - command get_cgroup failed to receive
response


The container actually stops (it's in STOPPED state in "lxc list").

The command just never returns.


Tomasz Chmielewski
https://lxadm.com
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Re: [lxc-users] lxc stop / lxc reboot hang

[Tomasz Chmielewski]

On 2017-02-03 12:52, Tomasz Chmielewski wrote:

Suddenly, today, I'm not able to stop or reboot any of containers:

# lxc stop some-container

Just sits there forever.


In /var/log/lxd/lxd.log, only this single entry shows up:

t=2017-02-03T03:46:20+ lvl=info msg="Shutting down container"
creation date=2017-01-19T15:51:21+ ephemeral=false timeout=-1s
name=some-container action=shutdown


In /var/log/lxd/some-container/lxc.log, only this one shows up:

lxc 20170203034624.534 WARN lxc_commands -
commands.c:lxc_cmd_rsp_recv:172 - command get_cgroup failed to receive
response


The container actually stops (it's in STOPPED state in "lxc list").

The command just never returns.


Tomasz Chmielewski
https://lxadm.com
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Re: [lxc-users] lxc stop / lxc reboot hang

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Re: [lxc-users] lxc stop / lxc reboot hang

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Re: [lxc-users] lxc stop / lxc reboot hang

[mslatter]

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have not received your request.
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