Host system admission control
Systems and methods for admission control to a physical host system are provided herein. One aspect provides for receiving at least one resource request at an admission control component of a distributed computing system, the at least one resource request comprised of at least one system type; processing the at least one resource request utilizing at least one physical host accessible to the distributed computing system; specifying a number of resource request slots to be reserved for at least one system type based on at least one future reservation threshold accessible to the admission control component; and blocking resource requests from entering the system through the admission control component based on a number of available resource request slots and the at least one future reservation threshold. Other embodiments and aspects are also described herein.
1. A system comprising:
at least one processor in a distributed computer environment comprising:
an admission control component configured to receive at least one virtual machine resource request, the at least one resource request corresponding to at least one system type;
the at least one system type comprising a virtual machine type and at least one future reservation threshold corresponding to a number of resource request slots to be reserved for the virtual machine type; and
at least one physical host configured to process the at least one resource request, relative to an available number of slots;
the at least one physical host comprising a data center being configured to process virtual machine resource requests of different sizes;
wherein the admission control component blocks resource requests from entering the system based on a number of available resource request slots and the at least one future reservation threshold.
2. The system according to claim 1 , further comprising a statistics component configured to monitor an admission capacity of the at least one physical host.
3. The system according to claim 1 , further comprising a flag configured to specify at least one physical host blocked from processing at least one system type.
4. The system according to claim 3 , further comprising a placement component configured to place the at least one resource request on the at least one physical host based on the flag.
5. The system according to claim 3 , wherein the flag is set based on a probability that the at least one physical host blocked from processing at least one system type will have capacity to process a resource request.
6. The system according to claim 1 , wherein the at least one future reservation threshold applies to a preferred system type.
7. The system according to claim 6 , wherein the preferred system type is preferred based on system type revenue.
8. The system according to claim 6 , wherein the preferred system type is preferred based on a system service level.
9. A method comprising:
receiving at least one virtual machine resource request at an admission control component of a distributed computing system, the at least one resource request corresponding to at least one system type;
the at least one system type comprising a virtual machine type;
the at least one system type comprising a virtual machine type and at least one future reservation threshold corresponding to a number of resource request slots to be reserved for the virtual machine type;
processing the at least one resource request utilizing at least one physical host accessible to the distributed computing system, relative to an available number of slots;
the at least one physical host comprising a data center configured to process virtual machine resource requests of different sizes;
specifying a number of resource request slots to be reserved for at least one system type based on at least one future reservation threshold accessible to the admission control component; and
blocking resource requests from entering the system through the admission control component based on a number of available resource request slots and the at least one future reservation threshold.
10. The method according to claim 9 , further comprising monitoring an admission capacity of the at least one physical host via a statistics component.
11. The method according to claim 9 , further comprising specifying at least one physical host blocked from processing at least one system type via a flag.
12. The method according to claim 11 , further comprising placing the at least one resource request on the at least one physical host via a placement component based on the flag.
13. The method according to claim 11 , wherein the flag is set based on a probability that the at least one physical host blocked from processing at least one system type will have capacity to process a resource request.
14. The method according to claim 9 , wherein the at least one future reservation threshold applies to a preferred system type.
15. The method according to claim 14 , wherein the preferred system type is preferred based on system type revenue.
16. The method according to claim 14 , wherein the preferred system type is preferred based on a system service level.
17. A computer program product comprising:
a non-transitory computer readable storage medium having computer readable program code embodied therewith, the computer readable program code comprising:
computer readable program code configured to receive at least one virtual machine resource request, the at least one resource request corresponding to at least one system type;
the at least one system type comprising a virtual machine type and at least one future reservation threshold corresponding to a number of resource request slots to be reserved for the virtual machine type; and
computer readable program code configured to process the at least one resource request utilizing at least one physical host accessible to the distributed computing system;
the at least one physical host comprising a data center configured to process virtual machine resource requests of different sizes; and
computer readable program code configured to block resource requests from entering the system through the admission control component based on a number of available resource request slots and the at least one future reservation threshold.
18. The computer program product according to claim 17 , further comprising computer readable program code configured to monitor an admission capacity of the at least one physical host via a statistics component.
19. The computer program product according to claim 17 , further comprising computer readable program code configured to specify at least one physical host blocked from processing at least one system type via a flag.
20. The computer program product according to claim 19 , further comprising computer readable program code configured to place the at least one resource request on the at least one physical host via a placement component based on the flag.
21. The computer program product according to claim 19 , wherein the flag is set based on a probability that the at least one physical host blocked from processing at least one system type will have capacity to process a resource request.