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Muhammad Samir Khan updated TEZ-3816: ------------------------------------- Attachment: TEZ-3816.003.patch Added a couple of comments and speculationValue returns ON_SCHEDULE if the single task has not timed out yet. > Ability to automatically speculate single-task vertices > ------------------------------------------------------- > > Key: TEZ-3816 > URL: https://issues.apache.org/jira/browse/TEZ-3816 > Project: Apache Tez > Issue Type: Improvement > Reporter: Muhammad Samir Khan > Assignee: Muhammad Samir Khan > Attachments: TEZ-3816.001.patch, TEZ-3816.002.patch, > TEZ-3816.003.patch > > > When a single-task vertex is unlucky, it lands on a very slow node. > Speculation doesn't currently apply when there are no other tasks to compare > with. It would be good to have a configurable timeout after which the tasks > automatically speculate. -- This message was sent by Atlassian JIRA (v6.4.14#64029)