System and method for processing node memory resources in dual-server hot-backup mode

Abstract

The invention discloses a system and a method for processing node memory resources in a dual-server hot-backup mode. The system comprises at least one database node and at least one application server node in the dual-server hot-backup mode. The node comprises a detection module and an allocation module, wherein the detection module is used for detecting the state of the database service / application program service of the database / application server node in the dual-server hot-backup mode, and judging whether the database service / application program service is in a normal state or not; and the allocation module is used for judging whether a current node has an application program / database key process or not and judging the memory allocation mode of the current node when the database service / application program service is in the normal state, and allocating the memory resources of the current node according to judgment results. By the system and the method, the memory resources are ensured to be optimally allocated and utilized in the normal state or a single-node failure in the dual-server hot-backup mode.

Description

technical field [0001] The invention relates to the technical field of computer memory processing, in particular to a system and method for processing node memory resources in a computer dual-machine hot standby mode. Background technique [0002] At present, the application based on the database / application server usually adopts a dual-machine hot standby application mode. Generally, the database runs on one node, and the other node runs an application program (such as an ERP application program). [0003] In the prior art, a memory resource processing method for the database / application server dual-system hot standby application mode is to not dynamically adjust the allocated memory resources of the database / application server, but only to start / stop the database / application server , without adjusting memory resources for dynamic allocation, the final result is that the performance of the entire system is degraded. That is, when the application program (such as ERP applic...

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Problems solved by technology

[0003] In the prior art, a memory resource processing method for the database / application server dual-system hot standby application mode is to not dynamically adjust the allocated memory resources of the database / application server, but only to start / stop the database / application server , without adjusting memory resources for dynamic allocation, the final result is that the performance of the entire system is degraded

That is, when the application program (such as ERP application program) and the database are on different nodes, in order to ensure the normal operation of the single failure system, if the memory resource setting of the database / application server node is allocated to the database / application program according to the full memory, when When a node in the database / application server fails, the database / application may not be able to start on another node because memory resources are allocated to the database / application to the maximum at this time, and even if it starts, the speed is very slow

[0004] Another memory resource processing method for the dual-machine hot standby application mode of the database / application server is that, in order to ensure the normal realization of the dual-system hot standby failover, the memory resource allocated to the database / application server is only 50% of the total memory , while the other 50% is reserved for database / application server hot standby. That is to say, when 1 / 2 of the nodes are normal, the memory resource utilization rate of each node of the database / application server is only 50%, resulting in no idle resources. use it effectively

That is, when the application program (such as an ERP application program) and the database are on different nodes, in order to ensure the normal operation of the system in the event of a single failure, the memory resource setting of the database / application server node is allocated to the database / application program according to half memory. When both nodes are normal, only about 50% of the memory resources (that is, half memory) are allocated to the database / application, and only 50% of the memory resources of the database / application server are utilized, while the remaining 50% are not effectively used , which ultimately leads to unsatisfactory system application performance due to the fact that resources are not used to the maximum extent.

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