Hitesh Shah created TEZ-1950:
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Summary: Incorrect handling of counters in TaskAttemptImpl
Key: TEZ-1950
URL: https://issues.apache.org/jira/browse/TEZ-1950
Project: Apache Tez
Issue Type: Bug
Reporter: Hitesh Shah
To maintain task attempt counters, we are using
TaskAttempt.TaskAttemptStatus.counters
Now, counters is not accessed in a thread safe manner.
Counters are updated in either StatusUpdaterTransition or modified as part of
TaskAttempt.TaskAttemptStatus::setLocalityCounter().
In a scenario, where TaskAttempt::getCounters() is called before any status
update transition comes back, the locality counter will get lost because the
atomic boolean flag is never reset.
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