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https://issues.apache.org/jira/browse/SPARK-31509?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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wuyi updated SPARK-31509:
-------------------------
Description:
Currently, barrier taskset can only be scheduled when all tasks are launched at
the same time. As a result, delay scheduling becomes the biggest obstacle for
the barrier taskset to get scheduled. And the application can be easily fail
with barrier taskset when delay scheduling is on. So, probably, we should
recommend user to disable delay scheduling while using barrier execution.
BTW, we could still support delay scheduling with barrier taskset if we find a
way to resolve SPARK-24818
was:
Currently, barrier taskset can only be scheduled when all tasks are launched at
the same time. As a result, delay scheduling becomes the biggest obstacle for
the barrier taskset to get scheduled. And the application can be easily fail
with barrier taskset when delay scheduling is on. So, probably, we should
recommend user to disable delay scheduling while using barrier execution.
BTW, we could still support delay scheduling with barrier taskset if we could
resolve SPARK-24818
> Recommend user to disable delay scheduling for barrier taskset
> --------------------------------------------------------------
>
> Key: SPARK-31509
> URL: https://issues.apache.org/jira/browse/SPARK-31509
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Affects Versions: 3.1.0
> Reporter: wuyi
> Priority: Major
>
> Currently, barrier taskset can only be scheduled when all tasks are launched
> at the same time. As a result, delay scheduling becomes the biggest obstacle
> for the barrier taskset to get scheduled. And the application can be easily
> fail with barrier taskset when delay scheduling is on. So, probably, we
> should recommend user to disable delay scheduling while using barrier
> execution.
>
> BTW, we could still support delay scheduling with barrier taskset if we find
> a way to resolve SPARK-24818
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