Method, computer program and apparatus for post failure recovery using checkpoint in key value store of time series log structure in system

摘要

SubjectOne embodiment includes recording the system state prior to the interrupted garbage collection operation by the processor Problem to be solved: to provide a method for recovery after a failure using a checkpoint in a key value store of a time series log structure in a system.The processor writes the discarded entry into the log structure for the dirty checkpoint record pointing to the data record in the interrupted target slot.A new checkpoint record is inserted into the log structure for the dirty checkpoint record.Diagram