An optimistic checkpointing and selective message logging approach for consistent global checkpoint collection in distributed sy

In this paper, we present an asynchronous consistent global checkpoint collection algorithm which prevents contention for network storage at the file server and hence reduces the checkpointing overhead. The algorithm has two phases: In the first phase, a process initiates consistent global checkpoint collection by saving its state tentatively and asynchronously (called tentative checkpoint) in local memory or remote stable storage if there is no contention for stable storage while saving the state; in the second phase, the message log associated with the tentative checkpoint is stored in stable storage (checkpoint finalization phase). The tentative checkpoint together with the associated message log stored in the stable storage becomes part of a consistent global checkpoint. Under our algorithm, two or more processes can concurrently initiate consistent global checkpoint collection. Every tentative checkpoint will be finalized successfully unless a failure occurs. The finalized c...

• Type: Conference
• Year: 2007
• Where: IPPS
• Authors: Qiangfeng Jiang, D. Manivannan
• Keywords: Consistent Global Checkpoint, Distributed And Parallel Computing, Global Checkpoint Collection, IPPS 2007, Tentative Checkpoint