Increase kernel.pid_max to a higher value

While running big boxes with 72 disks it's easy to get out of PID for
all the threads needed by Ceph. Increasing the default value removes
this limitation.

Signed-off-by: Sébastien Han <sebastien.han@enovance.com>

diff --git a/roles/ceph-common/tasks/main.yml b/roles/ceph-common/tasks/main.yml
index 4d23e76a08d8a4f23f86eac96b6309396b54a656..c358fe75ebdb089dd693c36b24eb52df72380daf 100644 (file)
--- a/roles/ceph-common/tasks/main.yml
+++ b/roles/ceph-common/tasks/main.yml
@@ -36,3 +36,6 @@
 - name: Disable OSD directory parsing by updatedb
   command: updatedb -e /var/lib/ceph
   ignore_errors: true
+
+- name: Increase PID max value to a very large value
+  sysctl: name="kernel.pid_max" value=4194303 state=present sysctl_file=/etc/sysctl.conf