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https://issues.apache.org/jira/browse/MESOS-4248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15336432#comment-15336432
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Justin Venus commented on MESOS-4248:
-------------------------------------
Thanks for pointing that ticket out.
However, MESOS-4675 doesn't solve my use case.
- I want to run systemd in a docker container
- I want mesos-slave to setup the slice "mesos_executors.slice"
- I want to use the cgroup isolators
- I want mesos-executor tasks to survive a mesos-slave restart
- Basically I want mesos-slave to work like it's on bare metal (especially in a
docker container
I'm carrying around patches for 0.25.0, 0.26.0 and testing 0.27.2 to make this
work. I'll open a feature request in jira.
Please notice systemd is in a CGroup
{code}
[root@mesos-slave05of2 /]# systemctl status
● mesos-slave05of2
State: running
Jobs: 0 queued
Failed: 0 units
Since: Wed 2016-06-08 21:41:38 UTC; 1 weeks 1 days ago
CGroup:
/system.slice/docker-6c53ffcbc602cc6b19149030f6f453a1febd7fc79bf472fa6227c1fecd7c053c.scope
├─1 /usr/lib/systemd/systemd --system --log-target=console
--log-level=info --unit=mesos-slave.target
├─mesos_executors.slice
│ ├─10139 python2.7
/var/lib/mesos/slaves/f54196a4-d706-4324-97f6-009e18022152-S8/frameworks/20160221-001235-380151
│ ├─10171 /usr/bin/python2.7
/var/lib/mesos/slaves/f54196a4-d706-4324-97f6-009e18022152-S8/frameworks/20160221-0012
│ ├─10282 /usr/bin/python2.7
/var/lib/mesos/slaves/f54196a4-d706-4324-97f6-009e18022152-S8/frameworks/20160221-0012
│ ├─10283 /bin/bash -c echo '#!/bin/bash
PEX_INSTALL=${PEX_INSTALL:-${HOME}/.pex/install} LD_LIBRARY_PATH=${LD_LIB
│ ├─12647 python2.7
/var/lib/mesos/slaves/f54196a4-d706-4324-97f6-009e18022152-S8/frameworks/20160221-001235-380151
│ ├─12672 /usr/bin/python2.7
/var/lib/mesos/slaves/f54196a4-d706-4324-97f6-009e18022152-S8/frameworks/20160221-0012
│ ├─12690 /usr/bin/python2.7
/var/lib/mesos/slaves/f54196a4-d706-4324-97f6-009e18022152-S8/frameworks/20160221-0012
│ └─12691 python2.7
/var/lib/mesos/slaves/f54196a4-d706-4324-97f6-009e18022152-S8/frameworks/20160221-001235-380151
└─system.slice
├─thermos-observer.service
│ └─142 python2.7 /usr/sbin/thermos_observer
--mesos-root=/var/lib/mesos --port=1338 --log_to_disk=NONE --log_to_
├─mesos-slave.service
│ ├─ 143 mesos-slave
│ ├─ 187 mesos-docker-executor
{code}
> mesos slave can't start in CentOS-7 docker container
> ----------------------------------------------------
>
> Key: MESOS-4248
> URL: https://issues.apache.org/jira/browse/MESOS-4248
> Project: Mesos
> Issue Type: Bug
> Components: slave
> Affects Versions: 0.26.0
> Environment: My host OS is Debian Jessie, the container OS is CentOS
> 7.2.
> {code}
> # cat /etc/system-release
> CentOS Linux release 7.2.1511 (Core)
> # rpm -qa |grep mesos
> mesosphere-zookeeper-3.4.6-0.1.20141204175332.centos7.x86_64
> mesosphere-el-repo-7-1.noarch
> mesos-0.26.0-0.2.145.centos701406.x86_64
> $ docker version
> Client:
> Version: 1.9.1
> API version: 1.21
> Go version: go1.4.2
> Git commit: a34a1d5
> Built: Fri Nov 20 12:59:02 UTC 2015
> OS/Arch: linux/amd64
> Server:
> Version: 1.9.1
> API version: 1.21
> Go version: go1.4.2
> Git commit: a34a1d5
> Built: Fri Nov 20 12:59:02 UTC 2015
> OS/Arch: linux/amd64
> {code}
> Reporter: Yubao Liu
>
> // Check the "Environment" label above for kinds of software versions.
> "systemctl start mesos-slave" can't start mesos-slave:
> {code}
> # journalctl -u mesos-slave
> ....
> Dec 24 10:35:25 mesos-slave1 systemd[1]: Started Mesos Slave.
> Dec 24 10:35:25 mesos-slave1 systemd[1]: Starting Mesos Slave...
> Dec 24 10:35:25 mesos-slave1 mesos-slave[12845]: I1224 10:35:25.210180 12838
> logging.cpp:172] INFO level logging started!
> Dec 24 10:35:25 mesos-slave1 mesos-slave[12845]: I1224 10:35:25.210603 12838
> main.cpp:190] Build: 2015-12-16 23:06:16 by root
> Dec 24 10:35:25 mesos-slave1 mesos-slave[12845]: I1224 10:35:25.210625 12838
> main.cpp:192] Version: 0.26.0
> Dec 24 10:35:25 mesos-slave1 mesos-slave[12845]: I1224 10:35:25.210634 12838
> main.cpp:195] Git tag: 0.26.0
> Dec 24 10:35:25 mesos-slave1 mesos-slave[12845]: I1224 10:35:25.210644 12838
> main.cpp:199] Git SHA: d3717e5c4d1bf4fca5c41cd7ea54fae489028faa
> Dec 24 10:35:25 mesos-slave1 mesos-slave[12845]: I1224 10:35:25.210765 12838
> containerizer.cpp:142] Using isolation: posix/cpu,posix/mem,filesystem/posix
> Dec 24 10:35:25 mesos-slave1 mesos-slave[12845]: I1224 10:35:25.215638 12838
> linux_launcher.cpp:103] Using /sys/fs/cgroup/freezer as the freezer hierarchy
> for the Linux launcher
> Dec 24 10:35:25 mesos-slave1 mesos-slave[12845]: I1224 10:35:25.220279 12838
> systemd.cpp:128] systemd version `219` detected
> Dec 24 10:35:25 mesos-slave1 mesos-slave[12845]: I1224 10:35:25.227017 12838
> systemd.cpp:210] Started systemd slice `mesos_executors.slice`
> Dec 24 10:35:25 mesos-slave1 mesos-slave[12845]: Failed to create a
> containerizer: Could not create MesosContainerizer: Failed to create
> launcher: Failed to locate systemd cgroups hierarchy: does not exist
> Dec 24 10:35:25 mesos-slave1 systemd[1]: mesos-slave.service: main process
> exited, code=exited, status=1/FAILURE
> Dec 24 10:35:25 mesos-slave1 systemd[1]: Unit mesos-slave.service entered
> failed state.
> Dec 24 10:35:25 mesos-slave1 systemd[1]: mesos-slave.service failed.
> {code}
> I used strace to debug it, mesos-slave tried to access
> "/sys/fs/cgroup/systemd/mesos_executors.slice", but it's actually at
> "/sys/fs/cgroup/systemd/system.slice/docker-45875efce9019375cd0c5b29bb1a12275fb6033293f9bf3d97d774a1e5d4de52.scope/mesos_executors.slice/",
> mesos-slave should check "/proc/self/cgroup" to find those intermediate
> directories:
> {code}
> # cat /proc/self/cgroup
> 8:perf_event:/system.slice/docker-45875efce9019375cd0c5b29bb1a12275fb6033293f9bf3d97d774a1e5d4de52.scope
> 7:blkio:/system.slice/docker-45875efce9019375cd0c5b29bb1a12275fb6033293f9bf3d97d774a1e5d4de52.scope
> 6:net_cls,net_prio:/system.slice/docker-45875efce9019375cd0c5b29bb1a12275fb6033293f9bf3d97d774a1e5d4de52.scope
> 5:freezer:/system.slice/docker-45875efce9019375cd0c5b29bb1a12275fb6033293f9bf3d97d774a1e5d4de52.scope
> 4:devices:/system.slice/docker-45875efce9019375cd0c5b29bb1a12275fb6033293f9bf3d97d774a1e5d4de52.scope
> 3:cpu,cpuacct:/system.slice/docker-45875efce9019375cd0c5b29bb1a12275fb6033293f9bf3d97d774a1e5d4de52.scope
> 2:cpuset:/system.slice/docker-45875efce9019375cd0c5b29bb1a12275fb6033293f9bf3d97d774a1e5d4de52.scope
> 1:name=systemd:/system.slice/docker-45875efce9019375cd0c5b29bb1a12275fb6033293f9bf3d97d774a1e5d4de52.scope
> {code}
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