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https://issues.apache.org/jira/browse/MESOS-8877?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Qian Zhang reassigned MESOS-8877:
---------------------------------
Story Points: 3 (was: 5)
Assignee: Qian Zhang
RR: [https://reviews.apache.org/r/72401/]
> Docker container's resources will be wrongly enlarged in cgroups after agent
> recovery
> -------------------------------------------------------------------------------------
>
> Key: MESOS-8877
> URL: https://issues.apache.org/jira/browse/MESOS-8877
> Project: Mesos
> Issue Type: Bug
> Components: docker
> Affects Versions: 1.6.1, 1.6.0, 1.5.1, 1.5.0, 1.4.2, 1.4.1, 1.4.0
> Reporter: Qian Zhang
> Assignee: Qian Zhang
> Priority: Critical
> Labels: containerization
>
> Reproduce steps:
> 1. Run `mesos-execute --master=10.0.49.2:5050
> --task=[file:///home/qzhang/workspace/config/task_docker.json]
> --checkpoint=true` to launch a Docker container.
> {code:java}
> # cat task_docker.json
> {
> "name": "test",
> "task_id": {"value" : "test"},
> "agent_id": {"value" : ""},
> "resources": [
> {"name": "cpus", "type": "SCALAR", "scalar": {"value": 0.1}},
> {"name": "mem", "type": "SCALAR", "scalar": {"value": 32}}
> ],
> "command": {
> "value": "sleep 55555"
> },
> "container": {
> "type": "DOCKER",
> "docker": {
> "image": "alpine"
> }
> }
> }
> {code}
> 2. When the Docker container is running, we can see its resources in cgroups
> are correctly set, so far so good.
> {code:java}
> # cat
> /sys/fs/cgroup/cpu,cpuacct/docker/a711b3c7b0d91cd6d1c7d8daf45a90ff78d2fd66973e615faca55a717ec6b106/cpu.cfs_quota_us
>
> 10000
> # cat
> /sys/fs/cgroup/memory/docker/a711b3c7b0d91cd6d1c7d8daf45a90ff78d2fd66973e615faca55a717ec6b106/memory.limit_in_bytes
>
> 33554432
> {code}
> 3. Restart Mesos agent, and then we will see the resources of the Docker
> container will be wrongly enlarged.
> {code}
> I0503 02:06:17.268340 29512 docker.cpp:1855] Updated 'cpu.shares' to 204 at
> /sys/fs/cgroup/cpu,cpuacct/docker/a711b3c7b0d91cd6d1c7d8daf45a90ff78d2fd66973e615faca55a717ec6b106
> for container 1b21295b-2f49-4d08-84c7-43b9ae15ad88
> I0503 02:06:17.271390 29512 docker.cpp:1882] Updated 'cpu.cfs_period_us' to
> 100ms and 'cpu.cfs_quota_us' to 20ms (cpus 0.2) for container
> 1b21295b-2f49-4d08-84c7-43b9ae15ad88
> I0503 02:06:17.273082 29512 docker.cpp:1924] Updated
> 'memory.soft_limit_in_bytes' to 64MB for container
> 1b21295b-2f49-4d08-84c7-43b9ae15ad88
> I0503 02:06:17.275908 29512 docker.cpp:1950] Updated 'memory.limit_in_bytes'
> to 64MB at
> /sys/fs/cgroup/memory/docker/a711b3c7b0d91cd6d1c7d8daf45a90ff78d2fd66973e615faca55a717ec6b106
> for container 1b21295b-2f49-4d08-84c7-43b9ae15ad88
> # cat
> /sys/fs/cgroup/cpu,cpuacct/docker/a711b3c7b0d91cd6d1c7d8daf45a90ff78d2fd66973e615faca55a717ec6b106/cpu.cfs_quota_us
> 20000
> # cat
> /sys/fs/cgroup/memory/docker/a711b3c7b0d91cd6d1c7d8daf45a90ff78d2fd66973e615faca55a717ec6b106/memory.limit_in_bytes
> 67108864
> {code}
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