| 摘要 |
A distributed system having a plurality of nodes, wherein the system comprises a set of index nodes for providing a searchable index which comprises metadata for locating data in the system, the set of index nodes is divided into read zones comprising a group of index nodes containing the complete searchable index, and the read zones are subdivided in write zones, each write zone comprising at least one index node containing a partition of said searchable index; and includes a master index node maintaining an index structure of said searchable index by collecting from each index node measures of the current read and write throughput of the respective index node dependent on a current load of the respective index node, where the master index node re-configures the read zones and the corresponding write zones in response to the measured read and write throughputs and the measured loads of the index nodes. |
