IDENTIFYING AND CORRECTING AN UNDESIRED CONDITION OF A DISPERSED STORAGE NETWORK ACCESS REQUEST

摘要

A method begins by a processing module sending a transaction verification request to the set of dispersed storage (DS) units, wherein the transaction verification request includes a transaction number that corresponds to a particular dispersed storage network (DSN) access request. The method continues with the processing module receiving transaction verification responses from at least some of the set of DS units to produce received transaction verification responses. The method continues with the processing module identifying an undesired condition with processing the DSN access request and initiating a corrective remedy for the undesired condition when a DS unit of the set of DS units does not provide a desired transaction verification response.

主权项

1. A method for execution by a computer, the method comprises:
generating a transaction number for a write operation; sending a set of write requests and a set of transaction verification requests to a set of storage units for the write operation, wherein a transaction verification request of the set of transaction verification requests includes the transaction number of the write operation; and when verification responses from at least a decode threshold number of storage units are consistent:
generating a second transaction number for a write commit operation that corresponds to the write operation;sending a set of write commit requests and a second set of transaction verification requests to the set of storage units for the write operation, wherein a transaction verification request of the second set of transaction verification requests includes the second transaction number of the write commit operation; andreceiving commit verification responses from at least some of the storage units.