liuxian created SPARK-25753:
-------------------------------

             Summary: binaryFiles broken for small files
                 Key: SPARK-25753
                 URL: https://issues.apache.org/jira/browse/SPARK-25753
             Project: Spark
          Issue Type: Bug
          Components: Input/Output
    Affects Versions: 3.0.0
            Reporter: liuxian


{{StreamFileInputFormat}} and 
{{WholeTextFileInputFormat(https://issues.apache.org/jira/browse/SPARK-24610)}} 
have the same problem: for small sized files, the computed maxSplitSize by 
`{{StreamFileInputFormat}} `  is way smaller than the default or commonly used 
split size of 64/128M and spark throws an exception while trying to read them.

{{Exception info:Minimum split size pernode 5123456 cannot be larger than 
maximum split size 4194304 java.io.IOException: Minimum split size pernode 
5123456 cannot be larger than maximum split size 4194304 at 
org.apache.hadoop.mapreduce.lib.input.CombineFileInputFormat.getSplits(CombineFileInputFormat.java:
 201) at 
org.apache.spark.rdd.BinaryFileRDD.getPartitions(BinaryFileRDD.scala:52) at 
org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:254) at 
org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:252) at 
scala.Option.getOrElse(Option.scala:121) at 
org.apache.spark.rdd.RDD.partitions(RDD.scala:252) at 
org.apache.spark.SparkContext.runJob(SparkContext.scala:2138)}}



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