Mustafa Iman created HIVE-23596:
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Summary: Encode guaranteed task information in containerId
Key: HIVE-23596
URL: https://issues.apache.org/jira/browse/HIVE-23596
Project: Hive
Issue Type: Improvement
Reporter: Mustafa Iman
Assignee: Mustafa Iman
We should avoid calling LlapTaskScheduler to get initial isguaranteed flag for
all the tasks. It causes arbitrary delays in sending tasks out. Since
communicator is a single thread, any blocking there delays all the tasks.
There are [https://jira.apache.org/jira/browse/TEZ-4192] and
[https://jira.apache.org/jira/browse/HIVE-23589] for a proper solution to this.
However, that requires a Tez release which seems far right now. We can replace
the current hack with another hack that does not require locking.
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