Mark Khaitman created SPARK-5899:
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Summary: Viewing specific stage information which contains
thousands of tasks will freak out the driver and CPU cores from where it runs
Key: SPARK-5899
URL: https://issues.apache.org/jira/browse/SPARK-5899
Project: Spark
Issue Type: Bug
Components: Web UI
Affects Versions: 1.2.1, 1.3.0
Environment: CentOS 7, Spark Standalone
Reporter: Mark Khaitman
Priority: Critical
If a user ever tries to view specific stage stats, for example, a repartition
stage which involves 30000 partitions, the Web UI attempts to load every single
task result onto a single webpage, which is completely destroying CPU usage on
the driver, which subsequently causes the remaining tasks / jobs to be nearly
impossible to complete.
Ideally the task results should be paged (if not too much trouble) to prevent
this from happening.
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