| 摘要 |
A distributed data storage method, apparatus, and system are disclosed. After a first node receives a query request that carries a query identifier, if first data corresponding to the query identifier is stored locally, but second data corresponding to the query identifier is not stored locally, the first node recalculates, according to the query identifier and a preset calculation rule, a second node configured to store the first data, the first node does not need to send the first data to the second node, and instead, sends storage location information of the first data to the second node, the second node obtains the first data from the first node according to the storage location information after receiving a request for querying for the first data, and if the request for querying for the first data is not received subsequently, the operation of obtaining, by the second node, the first data from the first node is not triggered. In this way, network data transmission resources are reduced and storage space is saved. |
