Patent ID: 9582375
Date: 2017-02-28
CPC Classifications: G06F,H04L

Claim:
1. A method for recovering after the failure of a first server to which a client was connected for accessing a resource, the method comprising: connecting a client to a first server node to access a resource for using a cursor; calculating at the client a first state information for the connection between the client and first server node, wherein the first state information comprises a first checksum; detecting a failure, wherein the failure prevents the client from accessing the resource through the first server node; automatically connecting the client with a second server node, the second server node configurable to access the resource; transmitting the first state information comprising the first checksum from the client to the second server node; calculating at the second server node a second checksum; and determining whether the client is allowed to continue processing with previously accessed data transmitted from the first server node if the state information indicates consistency with newly accessed data from the second server node, wherein consistency is determined based at least in part upon a comparison between the first checksum and the second checksum.