openstack/openstack-ansible-ops
Code Issues Proposed changes

Ensure the components are isolated from the system

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This creates a specific slice which all OpenStack services will operate
from. By creating an independent slice these components will be governed
away from the system slice allowing us to better optimise resource
consumption.

See the following for more information on slices:

* https://www.freedesktop.org/software/systemd/man/systemd.slice.html

See for following for more information on resource controls:

* https://www.freedesktop.org/software/systemd/man/systemd.resource-control.html

Tools like ``systemd-cgtop`` and ``systemd-cgls`` will now give us
insight into specific processes, process groups, and resouce consumption
in ways that we've not had access to before. To enable some of this reporting
the accounting options have been added to the [Service] section of the unit
file.

Change-Id: Ife2e28ce6b3e0d0219b8a5ec2ca8d9dbe513d5a7
Signed-off-by: Kevin Carter <kevin.carter@rackspace.com>
This commit is contained in:
Kevin Carter 2017-03-28 23:58:42 -05:00
parent a6f42e7510
commit 33da8fc8eb
1 changed files with 14 additions and 0 deletions
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14
cluster_metrics/templates/influxdbrelay.service.j2
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@ -12,6 +12,20 @@ ExecStart=/opt/influxdb-relay/bin/influxdb-relay -config /opt/influxdb-relay/rel
KillMode=control-group
Restart=on-failure
# Give a reasonable amount of time for the server to start up/shut down
TimeoutSec=300
Restart=on-failure
RestartSec=150
# This creates a specific slice which all services will operate from
# The accounting options give us the ability to see resource usage through
# the `systemd-cgtop` command.
Slice=influxdbrelay.slice
CPUAccounting=true
BlockIOAccounting=true
MemoryAccounting=false
TasksAccounting=true
[Install]
WantedBy=multi-user.target
Alias=influxd.service