OCF_HEARTBEAT_XEN(7) | OCF resource agents | OCF_HEARTBEAT_XEN(7) |
ocf_heartbeat_Xen - Manages Xen unprivileged domains (DomUs)
Xen [start | stop | monitor | migrate_to | migrate_from | meta-data | validate-all]
Resource Agent for the Xen Hypervisor. Manages Xen virtual machine instances by mapping cluster resource start and stop, to Xen create and shutdown, respectively.
A note on names
We will try to extract the name from the config file (the xmfile attribute). If you use a simple assignment statement, then you should be fine. Otherwise, if there's some python acrobacy involved such as dynamically assigning names depending on other variables, and we will try to detect this, then please set the name attribute. You should also do that if there is any chance of a pathological situation where a config file might be missing, for example if it resides on a shared storage. If all fails, we finally fall back to the instance id to preserve backward compatibility.
Para-virtualized guests can also be migrated by enabling the meta_attribute allow-migrate.
This resource agent may be configured for native migration if available in the cluster manager. For Pacemaker, the allow-migrate="true" meta attribute enables native migration.
xmfile
(required, string, default "/etc/xen/vm/MyDomU")
name
(optional, string, no default)
shutdown_timeout
If this is not set, it will default to two-third of the stop action timeout.
Setting this value to 0 forces an immediate destroy.
(optional, string, no default)
shutdown_acpi
(optional, boolean, default 0)
allow_mem_management
(optional, boolean, default 0)
node_ip_attribute
This parameter allows you to specify a node attribute that will be queried instead for the target node, overriding the IP address. This allows you to use a dedicated network for live migration traffic to a specific node.
Warning: make very sure the IP address does point to the right node. Or else the live migration will end up somewhere else, greatly confusing the cluster and causing havoc.
(optional, string, no default)
reserved_Dom0_memory
(optional, string, default "512")
autoset_utilization_cpu
(optional, boolean, default false)
autoset_utilization_hv_memory
(optional, boolean, default false)
monitor_scripts
(optional, string, no default)
This resource agent supports the following actions (operations):
start
stop
migrate_from
migrate_to
monitor
meta-data
validate-all
The following is an example configuration for a Xen resource using the crm(8) shell:
primitive p_Xen ocf:heartbeat:Xen \
params \
xmfile="/etc/xen/vm/MyDomU" \
meta allow-migrate="true" \
op monitor depth="0" timeout="30s" interval="10s"
The following is an example configuration for a Xen resource using pcs(8)
pcs resource create p_Xen ocf:heartbeat:Xen \
xmfile="/etc/xen/vm/MyDomU" \
op monitor OCF_CHECK_LEVEL="0" timeout="30s" interval="10s"
http://clusterlabs.org/
ClusterLabs contributors (see the resource agent source for information about individual authors)
12/14/2020 | resource-agents UNKNOWN |