[jira] [Created] (TEZ-3758) Vertex can hang in RUNNING state when two task attempts finish very closely and have retroactive failures

["Kuhu Shukla (JIRA)" <ji...@apache.org>]

Kuhu Shukla created TEZ-3758:
--------------------------------

             Summary: Vertex can hang in RUNNING state when two task attempts finish very closely and have retroactive failures
                 Key: TEZ-3758
                 URL: https://issues.apache.org/jira/browse/TEZ-3758
             Project: Apache Tez
          Issue Type: Bug
    Affects Versions: 0.7.1, 0.9.0
            Reporter: Kuhu Shukla
            Assignee: Kuhu Shukla


A vertex's count of what tasks are done can go off in a case where two task attempts finish very closely, say within a millisecond of each other. We had a case where this task, which was marked successful, never scheduled another attempt upon getting a retroactive failure since it thought it had one uncompleted task attempt already. This is because the attempt that finished 1 ms later transitioned to SUCCEEDED but we don't take any action on the taskAttempStatus data structure and it stays false. This JIRA will attempt to solve that race.



--
This message was sent by Atlassian JIRA
(v6.3.15#6346)