Speculative reads

摘要

Patterns of access and/or behavior can be analyzed and persisted for use in pre-fetching data from a physical storage device. In at least some embodiments, data can be aggregated across volumes, instances, users, applications, or other such entities, and that data can be analyzed to attempt to determine patterns for any of those entities. The patterns and/or analysis can be persisted such that the information is not lost in the event of a reboot or other such occurrence. Further, aspects such as load and availability across the network can be analyzed to determine where to send and/or store data that is pre-fetched from disk or other such storage in order to reduce latency while preventing bottlenecks or other such issues with resource availability.

主权项

1. A computer-implemented method, comprising:
receiving, from a source, a plurality of read requests for data stored in a data store, the plurality of read requests having been received over a period of time; analyzing information describing the plurality of read requests to identify at least one pattern of accessing data stored in the data store; determining that a level of certainty for the at least one pattern of accessing data satisfies a threshold certainty; and associating the at least one pattern of accessing data and at least one network or resource constraint with the source, wherein the at least one network or resource constraint is to be satisfied before the at least one pattern is able to be applied to at least one subsequent read request that is received from the source.