slugSoft-checkpoint based Checkpointing Algorithm for Mobile Distributed Systems
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2014, Vol 2, Issue 5
Abstract
There are number of issues needs to handle in mobile computing systems like mobility, lack of stable storage on mobile nodes, disconnections, limited battery power and high failure rate of mobile nodes which causes loss of computation. Checkpointing is an attractive approach to introduce fault tolerance in mobile distributed systems transparently. A checkpoint is a local state of a process saved on the stable storage. H owever, a mobile consumer device is not considered to have sufficiently large and stable storage to store its checkpoint data. Therefore, a remote checkpoint technique is preferred in which the checkpoint data of a mobile device is kept in a remote checkpo int server instead of the mobile device. “Soft checkpoint” is neither a tentative checkpoint nor a permanent checkpoint, which can be saved anywhere, e.g., the main memory or local disk of MHs. Before failure these soft checkpointsare converted to hard checkpoints and are sent to MSSs stable storage. In this way, taking a soft - checkpoint avoids the overhead of transferring large amounts of data to the stable storage atMSSs over the wireless network and minimizes power consumption.
Authors and Affiliations
Pradeep Kumar Sharma, Parveen Kumar, Surender Jangra
Keywords
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