[jira] [Updated] (SPARK-3276) Provide a API to specify MIN_REMEMBER_DURATION for files to consider as input in streaming

["Sean Owen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-3276?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean Owen updated SPARK-3276:
-----------------------------
    Summary: Provide a API to specify MIN_REMEMBER_DURATION for files to consider as input in streaming  (was: Provide a API to specify whether the old files need to be ignored in file input text DStream)

See SPARK-6061. I'm going to hijack this slightly to suggest that the real issue is not being able to choose to see only new files, which you already can, but controlling {{MIN_REMEMBER_DURATION}}, which is currently hard-coded.

> Provide a API to specify MIN_REMEMBER_DURATION for files to consider as input in streaming
> ------------------------------------------------------------------------------------------
>
>                 Key: SPARK-3276
>                 URL: https://issues.apache.org/jira/browse/SPARK-3276
>             Project: Spark
>          Issue Type: Improvement
>          Components: Streaming
>    Affects Versions: 1.2.0
>            Reporter: Jack Hu
>            Priority: Minor
>
> Currently, only one API called textFileStream in StreamingContext to specify the text file dstream, which ignores the old files always. On some times, the old files is still useful.
> Need a API to let user choose whether the old files need to be ingored or not .
> The API currently in StreamingContext:
> def textFileStream(directory: String): DStream[String] = {
>     fileStream[LongWritable, Text, TextInputFormat](directory).map(_._2.toString)
>   }



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