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Posted to dev@tez.apache.org by "Zhiyuan Yang (JIRA)" <ji...@apache.org> on 2016/08/03 22:43:20 UTC

[jira] [Created] (TEZ-3397) Better fault tolerance heuristics for custom edge

Zhiyuan Yang created TEZ-3397:
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             Summary: Better fault tolerance heuristics for custom edge
                 Key: TEZ-3397
                 URL: https://issues.apache.org/jira/browse/TEZ-3397
             Project: Apache Tez
          Issue Type: Bug
            Reporter: Zhiyuan Yang
            Assignee: Zhiyuan Yang


Today, a source task calculates failure fraction by dividing number of unique destination tasks that report failure by number of destination tasks that depend on this source task. A better way is to divide number of destination tasks that report failure by number of *unfinished* destination tasks that depend on the source task.



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