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masakari
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update docs 

Change-Id: Ia6849b67128e6aa635fbfddf463c20f5c71db554
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suzhengwei 2021-01-06 10:17:48 +08:00
parent 0e5048c6dc
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doc/source/install/overview.rst
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@ -5,26 +5,26 @@ Masakari service overview
Masakari provides Virtual Machines High Availability(VMHA), and rescues
KVM-based Virtual Machines(VM) from a failure events described below:
* VM process down
* ``VM process down`` -
restart vm (use nova stop API, and nova start API).
Libvirt events will be also emitted by other failures.
* Provisioning process down
* ``Provisioning process down`` -
restarts process, changes nova-compute service status to maintenance mode
(use nova service-disable).
* nova-compute host failure
* ``nova-compute host failure`` -
evacuate all the VMs from failure host according to the following recovery
methods (use nova evacuate API).
* auto
* ``auto`` -
evacuate all the VMs with no destination node for nova scheduler.
* reserved_host
* ``reserved_host`` -
evacuate all the VMs with reserved hosts as the destination nodes for
nova scheduler.
* auto_priority
* ``auto_priority`` -
evacuate all the VMs by using ``auto`` recovery method firstly.
If failed, then using ``reserved_host`` recovery method.
* rh_priority
evacuate all the VMs by using ``rh_priority`` recovery method firstly.
* ``rh_priority`` -
evacuate all the VMs by using ``reserved_host`` recovery method firstly.
If failed, then using ``auto`` recovery method.
The below services enables deplores to integrate with the Masakari directly