BahaaEddin AlAila created SPARK-19646:
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Summary: binaryRecords replicates records in scala API
Key: SPARK-19646
URL: https://issues.apache.org/jira/browse/SPARK-19646
Project: Spark
Issue Type: Bug
Components: Spark Core
Affects Versions: 2.1.0, 2.0.0
Reporter: BahaaEddin AlAila
Priority: Minor
The scala sc.binaryRecords replicates one record for the entire set.
for example, I am trying to load the cifar binary data where in a big binary
file, each 3073 represents a 32x32x3 bytes image with 1 byte for the label
label. The file resides on my local filesystem.
.take(5) returns 5 records all the same, .collect() returns 10,000 records all
the same.
What is puzzling is that the pyspark one works perfectly even though underneath
it is calling the scala implementation.
I have tested this on 2.1.0 and 2.0.0
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