f125a8b892
This change addresses a long-standing issue in rST documentation imported from XML.
That import process added backslash escapes in front of various characters. The three
most common being '(', ')', and '_'.
These instances are removed.
Signed-off-by: Ron Stone <ronald.stone@windriver.com>
Change-Id: Id43a9337ffcd505ccbdf072d7b29afdb5d2c997e
1.3 KiB
Lock a Host Using the CLI
Locking an unlocked host takes it out of service for configuration and maintenance purposes.
On a controller node, the state transition only succeeds if there are no services running in active mode on the host.
On a worker node (or ), the state transition only succeeds if all
currently running containers (hosted applications) on the host can be
re-located on alternative worker nodes or Controller. Re-location of
containers is initiated automatically by as soon as the state transition
is requested. For containers, a live re-location of the container to
another host is attempted. A NoExecute taint, as shown
below, is applied to the host, causing any containers on that host to be
evicted.
services=disabled:NoExecuteNote
On a Simplex system, where re-location of containers is not possible, all running containers are stopped when a host is locked. Other services continue to run.
You can lock a host from the controller's command line as follows:
~(keystone_admin)$ system host-lock <hostname>