Hyunsik Choi created TAJO-1218:
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Summary: Implement straggler detector and the block list
Key: TAJO-1218
URL: https://issues.apache.org/jira/browse/TAJO-1218
Project: Tajo
Issue Type: Improvement
Reporter: Hyunsik Choi
A straggler is a machine that takes an unusually longer time to complete tasks
than other machines do. Straggler is usual in large-scale distributed systems.
Earlier straggler detection and handling can significantly reduce query
response times. So, we need to add the straggler detector. Detected stragglers
should be added to the black list, and they should not used for processing.
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