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Kuhu Shukla commented on TEZ-3758: ---------------------------------- Test failures are relevant. Looking into them now. > 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 > Attachments: TEZ-3758.001.patch, TEZ-3758.002.patch > > > 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 (v6.4.14#64029)