Host-HA offers investigation, fencing and recovery mechanisms for host that for
any reason are malfunctioning. It uses Activity and Health checks to determine
current host state based on which it may degrade a host or try to recover it. On
failing to recover it, it may try to fence the host.
The core feature is implemented in a hypervisor agnostic way, with two separate
implementations of the driver/provider for Simulator and KVM hypervisors. The
framework also allows for implementation of other hypervisor specific provider
implementation in future.
The Host-HA provider implementation for KVM hypervisor uses the out-of-band
management sub-system to issue IPMI calls to reset (recover) or poweroff (fence)
a host.
The Host-HA provider implementation for Simulator provides a means of testing
and validating the core framework implementation.
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
Support access to a host’s out-of-band management interface (e.g. IPMI, iLO,
DRAC, etc.) to manage host power operations (on/off etc.) and querying current
power state in CloudStack.
Given the wide range of out-of-band management interfaces such as iLO and iDRA,
the service implementation allows for development of separate drivers as plugins.
This feature comes with a ipmitool based driver that uses the
ipmitool (http://linux.die.net/man/1/ipmitool) to communicate with any
out-of-band management interface that support IPMI 2.0.
This feature allows following common use-cases:
- Restarting stalled/failed hosts
- Powering off under-utilised hosts
- Powering on hosts for provisioning or to increase capacity
- Allowing system administrators to see the current power state of the host
For testing this feature `ipmisim` can be used:
https://pypi.python.org/pypi/ipmisim
FS:
https://cwiki.apache.org/confluence/display/CLOUDSTACK/Out-of-band+Management+for+CloudStack
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
This patch makes it possible to expose VM UUID to subsystems, this can be
useful for implementing VM Snapshots for KVM in future.
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
Fix cleanup of NFS mounts on management server during server starup by correcting how mount points are listed for a management server.
(cherry picked from commit 647532376f)
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
If VM has been cold migrated across different VMware DCs, then unregister the VM from source host.
(cherry picked from commit 15b348632d)
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
Moved HV specific investigators before PingInvestigator in default ordering
(cherry picked from commit ceae97868c)
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
GPU enabled hosts from non-GPU VM deployment.
Cluster reordering is based on the number of unique host tags in a cluster,
cluster with most number of unique host tags will put at the end of list.
Hosts with GPU capability will get tagged with implicit tags defined by
global config param 'implicit.host.tags' at the time os host discovery.
Also added FirstFitPlannerTest unit test file.
modules can use it.
(cherry picked from commit b6401b04f22b0a5b686c7c477da4c6e0fd18df84)
Conflicts:
plugins/hypervisors/baremetal/src/com/cloud/baremetal/networkservice/BaremetalKickStartServiceImpl.java
GPU enabled hosts from non-GPU VM deployment.
Cluster reordering is based on the number of unique host tags in a cluster,
cluster with most number of unique host tags will put at the end of list.
Hosts with GPU capability will get tagged with implicit tags defined by
global config param 'implicit.host.tags' at the time os host discovery.
Also added FirstFitPlannerTest unit test file.
(cherry picked from commit 39fe766c2b)
This reverts commit 809b47e4eb.
Because the fix cause CLOUDSTACK-7163. Would fix it in another way.
Conflicts:
core/src/com/cloud/agent/resource/virtualnetwork/ConfigHelper.java
Abhinandan Prateek
Rohit Yadav
Boris Schrijver
Abhinandan Prateek
Likitha Shetty
Santhosh Edukulla
Koushik Das
amoghvk
Sanjay Tripathi
Hugo Trippaers
Edison Su
Anthony Xu
Jayapal
Fred Clift
Devdeep Singh
Min Chen
Kishan Kavala
Sheng Yang
Murali Reddy