Abstract: A method for scheduling a multi-node cluster of K-DB database, comprising: connecting an application terminal and scheduler to a cluster of K-DB database through a service extranet, and connecting respective nodes in the cluster through an intranet; in response to that an application request is received by the scheduler, determining whether the request is a table query, and in response to that the request is the table query, determining whether the request is a multi-table-joint query; in response to that the request is the multi-table-joint query, determining tables to be queried, and determining nodes having a highest table version; determining types of change values of the respective tables, and calculating amount of updated data of the respective tables; and selecting a node with the smallest amount of updated data as a computing node, synchronizing the tables of other nodes to the computing node, and executing the multi-table-joint query.

Abstract: A data security realization method and system based on a K-DB database are provided. The method includes: receiving a data processing request of a user regarding a data table in a database; in a case where the data processing request is a data insertion action request regarding the data table, successively executing hash and encryption actions on inserted data, and storing encrypted data in an encrypted permanent hash table; and in a case where the data processing request is a data modification action regarding the data table or a data deletion action regarding the data table, generating an instruction for prohibiting data modification or data deletion. By virtue of the solution, the flow of prohibiting data modification and data deletion regarding a data table is optimized, and a hash value is encrypted, so that the function is more secure and strong.

Abstract: Provided are a disk processing method and system, an electronic device. The method comprises: when disk alarm information is detected, marking a corresponding alarm disk as a faulty disk; detecting the state of a disk group corresponding to the faulty disk; if the state of the disk group is degraded, marking the faulty disk as an isolation disk, and generating alarm information; if the state of the disk group is healthy, determining whether there is a redundant disk group; if there is no redundant disk group, operating the faulty disk according to a first preset rule, and generating alarm information; if there is a redundant disk group, detecting the state of the redundant disk group, if the state of the redundant disk group is healthy, marking the faulty disk as the isolation disk, generating alarm information, otherwise, operating the faulty disk according to a second preset rule, generating alarm information.

Abstract: The present invention provides a K-DB database multi-node cluster scheduling method and system, a device, and a storage medium.

Abstract: A data security realization method and system based on a K-DB database are provided. The method includes: receiving a data processing request of a user regarding a data table in a database; in a case where the data processing request is a data insertion action request regarding the data table, successively executing hash and encryption actions on inserted data, and storing encrypted data in an encrypted permanent hash table; and in a case where the data processing request is a data modification action regarding the data table or a data deletion action regarding the data table, generating an instruction for prohibiting data modification or data deletion. By virtue of the solution, the flow of prohibiting data modification and data deletion regarding a data table is optimized, and a hash value is encrypted, so that the function is more secure and strong.