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https://issues.apache.org/jira/browse/SPARK-27774?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon reassigned SPARK-27774:
------------------------------------

    Assignee: wenxuanguan

> Avoid hardcoded configs
> -----------------------
>
>                 Key: SPARK-27774
>                 URL: https://issues.apache.org/jira/browse/SPARK-27774
>             Project: Spark
>          Issue Type: Improvement
>          Components: MLlib, Spark Core
>    Affects Versions: 2.4.3
>            Reporter: wenxuanguan
>            Assignee: wenxuanguan
>            Priority: Minor
>
> I found some hardcoded configs as below:
> spark.executor.heartbeatInterval
> spark.jars
> spark.files
> spark.kryoserializer.buffer.max
> spark.kryoserializer.buffer
> spark.shuffle.file.buffer
> spark.submit.deployMode
> spark.driver.supervise
> spark.driver.cores
> spark.cores.max
> which should be replaced by declared variable, such as 
> SHUFFLE_FILE_BUFFER_SIZE
>  



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