From f26860753bd733348a953e18a67a740b2f02a123 Mon Sep 17 00:00:00 2001 From: Steven Dake Date: Sun, 11 Oct 2015 01:17:54 -0700 Subject: [PATCH] Recommend enabling NTPD in the documenation Without NTPD, rabbitmq reconnects often and generally causes havoc in an OpenStack installation. Change-Id: I7911d115312132a156331f61b8c320c32ddc798c --- doc/dev-quickstart.rst | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/doc/dev-quickstart.rst b/doc/dev-quickstart.rst index 61fb7f0299..068c95decf 100644 --- a/doc/dev-quickstart.rst +++ b/doc/dev-quickstart.rst @@ -87,6 +87,20 @@ To install these clients use: pip install -U python-openstackclient +OpenStack uses healthcheck timers which run off wall-clock time rather then +starting a timer and expring the timer, encoding the expiration in the message +contents. In some cases, this timer interval can be on the order of 60 +seconds. For OpenStack to Operate correctly with these tight health-check +timer intervals, the Kolla community highly recommends running the ntpd +service on all deployment targets. To install, start, and enable ntp on +CentOS execute the following: + +:: + + yum -y install ntp + chkconfig ntpd enable + service ntpd start + Libvirt is started by default on many operating systems. Please disable libvirt on any machines that will be deployment targets. Only one copy of libvirt may be running at a time.