Commit Graph

7 Commits (a6d012b542c92230a272cc14054287ef4a560f35)

Author SHA1 Message Date
Yin Jifeng a6d012b542 sysctl ignoreerrors
some key fails under CentOS 6
2015-04-15 03:46:03 +08:00
Sébastien Han d20288c3c2 Only change when the task returns false
We only want to see things that really changed after a play completes.

Signed-off-by: Sébastien Han <sebastien.han@enovance.com>
2015-04-08 18:46:54 +02:00
Sébastien Han c246d8dc80 Ability to disable swap
With enough memory we will probably not need any swap.

Signed-off-by: Sébastien Han <sebastien.han@enovance.com>
2015-01-15 11:42:51 +01:00
Sébastien Han 30467a8243 Fix transparent huge page sys path
The old path was meant for old kernels...

Signed-off-by: Sébastien Han <sebastien.han@enovance.com>
2015-01-15 10:58:45 +01:00
Sébastien Han 25cf4d8650 Ability to disable transparent hugepage
In storage world it's often recommended to disable transparent hugepages
as they will tend to lower performance.
Note that this change won't survive reboot. There are several ways to
disable this permanently such as:

* rc.local
* grub boot line

It's a bit tricky to do this in Ansible since it really depends on the
OS you're running on.

Signed-off-by: Sébastien Han <sebastien.han@enovance.com>
2015-01-13 11:11:11 +01:00
Sébastien Han 2cb8941dcc Restructure OS tuning and add new value
We now use a single task and loop over a set of params, it's easier to
add now params.

Setting zone_reclaim_mode to 0.
See the discussion on the Ceph ML:
http://lists.ceph.com/pipermail/ceph-users-ceph.com/2013-December/036211.html

Signed-off-by: Sébastien Han <sebastien.han@enovance.com>
2015-01-13 10:34:46 +01:00
Sébastien Han 81b44fcfe2 Make OS tuning var configurable and file re-ordering
Depending on the OS you are runnning on you should be able to configure
these values.
Re-ordering file for clarity as well.

Signed-off-by: Sébastien Han <sebastien.han@enovance.com>
2015-01-07 11:44:40 +01:00