RESOURCE DYNAMIC ALLOCATION DEVICE, RESOURCE DYNAMIC ALLOCATION PROGRAM, RESOURCE DYNAMIC ALLOCATION SYSTEM, AND RESOURCE DYNAMIC ALLOCATION METHOD
A resource dynamic allocation device includes: a unit thread ID acquisitor that acquires identification information of an application process initialized at a time of activation, identification information of a thread which is included in the application process and to which a possible physical resource on a physical server is allocated, and identification information of the physical resource allocated to the thread; and a resource recorder/allocator that freezes all threads of the initialized application process and freezes the thread or unfreezes the thread in accordance with any one of transfer traffic, a resource load, and a load of the application process.
1 . A resource dynamic allocation device comprising:
a thread ID acquisitor that acquires identification information of an application process initialized at a time of activation, identification information of a thread which is included in the application process and to which a possible physical resource on a physical server is allocated, and identification information of the physical resource allocated to the thread; and
a resource recorder/allocator that freezes the thread or unfreezes the thread in accordance with any one of transfer traffic, a resource load, and a load of the application process.
2 . The resource dynamic allocation device according to claim 1 ,
wherein
the resource recorder/allocator records the identification information of the application process, the identification information of the thread, and the identification information of the physical resource received from the thread ID acquisitor in a thread information table, holds frozen states of the threads in a thread state table, and unfreezes the frozen thread in a case where the resource recorder/allocator determines that all other threads using the physical resource allocated to the frozen thread are frozen by referring to the thread information table and the thread state table.
3 . The resource dynamic allocation device according to claim 2 ,
further comprising
a monitor that notifies the resource recorder/allocator of scale-out of the application process when the load of the application process exceeds an upper limit threshold, wherein
the resource recorder/allocator determines whether or not the frozen thread included in the application process whose scale-out notification has been issued by the monitor can be unfrozen.
4 . The resource dynamic allocation device according to claim 3 ,
wherein:
the monitor notifies the resource recorder/allocator of scale-in of the application process when the load of the application process falls below a lower limit threshold; and
the resource recorder/allocator selects and freezes any one of the unfrozen threads included in the application process whose scale-in notification has been issued by the monitor.
5 . The resource dynamic allocation device according to claim 1 , wherein
a same physical resource is allowed to be redundantly allocated to different threads of the application process.
6 . A non-transitory computer-readable storage medium storing
a resource dynamic allocation program causing a computer to execute processing comprising:
acquiring an application process initialized at a time of activation, a thread which is included in the application process and to which a possible physical resource on a physical server is allocated, and allocation information of the physical resource allocated to the thread; and
freezing all threads of the initialized application process and freezing the thread or unfreezing the thread in accordance with any one of transfer traffic, a resource load, and a load of the application process.
7 . A resource dynamic allocation system comprising:
a resource dynamic allocation device that dynamically allocates a resource; and
a controller that determines scale-in and scale-out of the resource, wherein the resource dynamic allocation device includes
a thread ID acquisitor that acquires an application process initialized at a time of activation, a thread which is included in the application process and to which a possible physical resource on a physical server is allocated, and allocation information of the physical resource allocated to the thread, and
a resource recorder/allocator that freezes all threads of the initialized application process and freezes the thread or unfreezes the thread in accordance with any one of transfer traffic, a resource load, and a load of the application process.
8 . A resource dynamic allocation method comprising:
a step of a thread ID acquisitor acquiring an application process initialized at a time of activation, a thread which is included in the application process and to which a possible physical resource on a physical server is allocated, and allocation information of the physical resource allocated to the thread; and
a step of freezing all threads of the initialized application process and freezing the thread or unfreezing the thread in accordance with any one of transfer traffic, a resource load, and a load of the application process.
9 . The resource dynamic allocation device according to claim 1 , wherein
the resource recorder/allocator freezes all threads of the initialized application process.