[MESOS-4541] Default work_dir slave to /var/lib/mesos instead of /tmp

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Assignee: Unassigned
• Reporter: Nick van 't Hart
• Created: 28/Jan/16 07:26
• Updated: 11/Apr/16 21:16
• Resolved: 11/Apr/16 21:16

Description

Centos cleanup Daily systemd service

/usr/lib/systemd/system/systemd-tmpfiles-clean.service

1. This file is part of systemd.
   #
2. systemd is free software; you can redistribute it and/or modify it
3. under the terms of the GNU Lesser General Public License as published by
4. the Free Software Foundation; either version 2.1 of the License, or
5. (at your option) any later version.

[Unit]
Description=Cleanup of Temporary Directories
Documentation=man:tmpfiles.d(5) man:systemd-tmpfiles(8)
DefaultDependencies=no
Wants=local-fs.target
After=systemd-readahead-collect.service systemd-readahead-replay.service local-fs.target
Before=sysinit.target shutdown.target
ConditionDirectoryNotEmpty=|/usr/lib/tmpfiles.d
ConditionDirectoryNotEmpty=|/usr/local/lib/tmpfiles.d
ConditionDirectoryNotEmpty=|/etc/tmpfiles.d
ConditionDirectoryNotEmpty=|/run/tmpfiles.d

[Service]
Type=oneshot
ExecStart=/usr/bin/systemd-tmpfiles --clean
IOSchedulingClass=idle

http://www.freedesktop.org/software/systemd/man/systemd-tmpfiles.html
systemd-tmpfiles creates, deletes, and cleans up volatile and temporary files and directories, based on the configuration file format and location specified in tmpfiles.d(5).

/usr/lib/tmpfiles.d/tmp.conf
delete all files older then 10 days /tmp/*

change default work_dir for mesos from /tmp to /var/lib/mesos/

Problems:

• mesos slave crash when deploying from marathon (state of running tasks lost)
• mesos slave restart recovery will not work, because /tmp/mesos/meta/slaves/latest could not be found

For now maybe add some extra documentation for work_dir option, when using in production.

Issue Links

• duplicates: MESOS-2299 default work_dir of /tmp/mesos is problematic
• relates to: MESOS-4827 Destroy Docker container crashes Mesos slave
• relates to: MESOS-5064 Remove default value for the agent `work_dir`