System and method for monitoring an application or service group within a cluster as a resource of another cluster
View Patent ↗Various systems and methods for monitoring an application or service group within one cluster as a resource of another cluster are disclosed. In one embodiment, a method involves detecting an error indication generated by a first cluster (e.g., the error indication can be generated by a cluster controller or service group within the first cluster). The first cluster is implemented on a cluster resource (e.g., a virtual machine) of a second cluster. In response to detecting the error indication, restart of the cluster resource is initiated.
1. A method comprising:
detecting a fault within a sub-cluster controller, wherein
the sub-cluster controller controls a sub-cluster, and
the sub-cluster controller is implemented on a cluster resource; and
relocating the cluster resource from a first node to a second node in response to detecting the fault.
2. The method of claim 1 , wherein
the sub-cluster is a single-node sub-cluster.
3. The method of claim 1 , wherein
the cluster resource comprises a virtual machine.
4. The method of claim 3 , wherein
the detecting is performed in response to an error condition in an application executing on the virtual machine.
5. The method of claim 3 , further comprising:
detecting a failure of the virtual machine; and
initiating restart of the virtual machine on the second node in response to the detecting the failure.
6. The method of claim 1 , further comprising:
communicating with a cluster controller configured to control a multi-node cluster, wherein
the multi-node cluster comprises the first node and the second node.
7. The method of claim 1 , wherein
the fault is detected by a monitoring application executing on the single-node sub-cluster.
8. A non-transitory computer readable storage medium storing program instructions executable to:
detect a fault within a sub-cluster controller, wherein
the sub-cluster controller controls a sub-cluster, and
the sub-cluster controller is implemented on a cluster resource; and
relocate the cluster resource from a first node to a second node in response to detecting the fault.
9. The non-transitory computer readable storage medium of claim 8 , wherein
the sub-cluster is a single-node sub-cluster.
10. The non-transitory computer readable storage medium of claim 8 , wherein
the cluster resource comprises a virtual machine.
11. The non-transitory computer readable storage medium of claim 10 , wherein
detecting the fault is performed in response to an error condition in an application executing on the virtual machine.
12. The non-transitory computer readable storage medium of claim 10 , wherein the program instructions are further executable to:
detect a failure of the virtual machine; and
initiate restart of the virtual machine on the second node in response to the detecting the failure.
13. The non-transitory computer readable storage medium of claim 8 , wherein the program instructions are further executable to:
communicate with a cluster controller configured to control a multi-node cluster, wherein the multi-node cluster comprises the first node and the second node.
14. The non-transitory computer readable storage medium of claim 8 , wherein
the fault is detected by a monitoring application executing on the single-node sub-cluster.
15. A system comprising:
one or more processors; and
a memory coupled to the one or more processors, wherein the memory stores program instructions executable by the one or more processors to:
detect a fault within a sub-cluster controller, wherein
the sub-cluster controller controls a sub-cluster, and
the sub-cluster controller is implemented on a cluster resource; and
relocate the cluster resource from a first node to a second node in response to detecting the fault.
16. The system of claim 15 , wherein
the cluster resource comprises a virtual machine.
17. The system of claim 16 , wherein
detecting the fault is performed in response to an error condition in an application executing on the virtual machine.
18. The system of claim 16 , wherein the program instructions are further executable to:
detect a failure of the virtual machine; and
initiate restart of the virtual machine on the second node in response to the detecting the failure.
19. The system of claim 15 , wherein the program instructions are further executable to:
communicate with a cluster controller configured to control a multi-node cluster, wherein the multi-node cluster comprises the first node and the second node.
20. The system of claim 15 , wherein
the fault is detected by a monitoring application executing on the single-node sub-cluster.