Edward J. Yoon created HAMA-636:
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Summary: Confined recovery
Key: HAMA-636
URL: https://issues.apache.org/jira/browse/HAMA-636
Project: Hama
Issue Type: New Feature
Components: bsp core, messaging
Reporter: Edward J. Yoon
"Confined recovery" mentioned in Pregel paper can be used to improve the cost
and latency of recovery.
In addition to the existing HDFS checkpoints,1) the tasks log outgoing messages
to local filesystem for each superstep (See disk queue). When a task fails, 2)
it reverts to the last checkpoint. 3) Other workers re-send messages sent to
failed worker at each superstep occurring after the last checkpoint.
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