[ https://issues.apache.org/jira/browse/TEZ-3984?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jaume M updated TEZ-3984: ------------------------- Attachment: (was: TEZ-3984.2.patch) > Shuffle: Out of Band DME event sending causes errors > ---------------------------------------------------- > > Key: TEZ-3984 > URL: https://issues.apache.org/jira/browse/TEZ-3984 > Project: Apache Tez > Issue Type: Bug > Affects Versions: 0.8.4, 0.9.1, 0.10.0 > Reporter: Gopal V > Assignee: Jaume M > Priority: Critical > Labels: correctness > Attachments: TEZ-3984.1.patch, TEZ-3984.2.patch > > > In case of a task Input throwing an exception, the outputs are also closed in > the LogicalIOProcessorRuntimeTask.cleanup(). > Cleanup ignore all the events returned by output close, however if any output > tries to send an event out of band by directly calling > outputContext.sendEvents(events), then those events can reach the AM before > the task failure is reported. > This can cause correctness issues with shuffle since zero sized events can be > sent out due to an input failure and downstream tasks may never reattempt a > fetch from the valid attempt. -- This message was sent by Atlassian JIRA (v7.6.3#76005)