3.6. Checkpoint and restart capability
A job within a grid application may be designed to be launched, perform its tasks, and report back to the user or grid portal regarding its success or failure. In the latter case the same job may be launched for a second time, if it has not changed any persistent data prior to its error state. This process can be then repeated until final successful completion. However, it may make sense that failures be handled by the grid server to allow a more sophisticated way to get to job completion.
By building checkpoint and restart capabilities into the job and making its state available to other services within the grid, the job could be restarted where it failed, even on a different node.
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