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From Dick Davies <d...@hellooperator.net>
Subject Re: Running mesos-slave in Docker container
Date Tue, 23 Sep 2014 10:53:42 GMT
The master is advertising itself as being on 127.0.0.1  - try running
it with an --ip flag.


On 23 September 2014 11:10, Grzegorz Graczyk <gregory90@gmail.com> wrote:
> Thanks for your response!
>
> Mounting /sys did the job, cgroups are working, but now mesos-slave is just
> crushing after detecting new master or so (there's nothing useful in the
> logs - is there a way to make them more verbose?)
>
> Last lines of logs from mesos-slave:
> I0923 10:03:24.079859    10 detector.cpp:426] A new leading master
> (UPID=master@127.0.0.1:5050) is detected
> I0923 10:03:26.076053     9 slave.cpp:3195] Finished recovery
> I0923 10:03:26.076505     9 slave.cpp:589] New master detected at
> master@127.0.0.1:5050
> I0923 10:03:26.076732     9 slave.cpp:625] No credentials provided.
> Attempting to register without authentication
> I0923 10:03:26.076812     9 slave.cpp:636] Detecting new master
> I0923 10:03:26.076864     9 status_update_manager.cpp:167] New master
> detected at master@127.0.0.1:5050
>
> There's no problem in running mesos-master in the container(at least there
> wasn't any in my case, for now)
>
>
>
>
> On 23 September 2014 09:41, Tim Chen <tim@mesosphere.io> wrote:
>>
>> Hi Grzegorz,
>>
>> To run Mesos master|slave in a docker container is not straight forward
>> because we utilize kernel features therefore you need to explicitly test out
>> the features you like to use with Mesos with slave/master in Docker.
>>
>> Gabriel during the Mesosphere hackathon has got master and slave running
>> in docker containers, and he can probably share his Dockerfile and run
>> command.
>>
>> I believe one work around to get cgroups working with Docker run is to
>> mount /sys into the container (mount -v /sys:/sys).
>>
>> Gabriel do you still have the command you used to run slave/master with
>> Docker?
>>
>> Tim
>>
>>
>>
>> On Tue, Sep 23, 2014 at 12:24 AM, Grzegorz Graczyk <gregory90@gmail.com>
>> wrote:
>>>
>>> I'm trying to run mesos-slave inside Docker container, but it can't start
>>> due to problem with mounting cgroups.
>>>
>>> I'm using:
>>> Kernel Version: 3.13.0-32-generic
>>> Operating System: Ubuntu 14.04.1 LTS
>>> Docker: 1.2.0(commit fa7b24f)
>>> Mesos: 0.20.0
>>>
>>> Following error appears:
>>> I0923 07:11:20.921475    19 main.cpp:126] Build: 2014-08-22 05:04:26 by
>>> root
>>> I0923 07:11:20.921608    19 main.cpp:128] Version: 0.20.0
>>> I0923 07:11:20.921620    19 main.cpp:131] Git tag: 0.20.0
>>> I0923 07:11:20.921628    19 main.cpp:135] Git SHA:
>>> f421ffdf8d32a8834b3a6ee483b5b59f65956497
>>> Failed to create a containerizer: Could not create DockerContainerizer:
>>> Failed to find a mounted cgroups hierarchy for the 'cpu' subsystem; you
>>> probably need to mount cgroups manually!
>>>
>>> I'm running docker container with command:
>>> docker run --name mesos-slave --privileged --net=host -v
>>> /var/run/docker.sock:/var/run/docker.sock -v /var/lib/docker:/var/lib/docker
>>> -v /usr/local/bin/docker:/usr/local/bin/docker gregory90/mesos-slave
>>> --containerizers=docker,mesos --master=zk://localhost:2181/mesos
>>> --ip=127.0.0.1
>>>
>>> Everything is running on single machine.
>>> Everything works as expected when mesos-slave is run outside docker
>>> container.
>>>
>>> I'd appreciate some help.
>>
>>
>

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