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Posted to issues@spark.apache.org by "Zhang Jianguo (Jira)" <ji...@apache.org> on 2021/05/19 07:44:00 UTC

[jira] [Created] (SPARK-35441) InMemoryFileIndex load all files into memroy

Zhang Jianguo created SPARK-35441:
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             Summary: InMemoryFileIndex load all files into memroy
                 Key: SPARK-35441
                 URL: https://issues.apache.org/jira/browse/SPARK-35441
             Project: Spark
          Issue Type: Improvement
          Components: Spark Core
    Affects Versions: 2.3.1
            Reporter: Zhang Jianguo


When InMemoryFileIndex is initialated, it'll load all files of ${rootPath}. If there're thousands of files, it could lead to OOM.

 

https://github.com/apache/spark/blob/0b3758e8cdb3eaa9d55ce3b41ecad5fa01567343/sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/InMemoryFileIndex.scala#L66



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