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  1. Apache Avro
  2. AVRO-2944

DataFileReader has incorrect logic reading magic header

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 1.9.2
    • Fix Version/s: 1.10.1, 1.10.2
    • Component/s: java
    • Labels:
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      Description

      When creating reader using static method which includes checking for magic header, we currently read 4 bytes but the pointer is not correctly updated.

      https://github.com/apache/avro/blob/328c539afc77da347ec52be1e112a6a7c371143b/lang/java/avro/src/main/java/org/apache/avro/file/DataFileReader.java#L61-L62

      When inputstream reads less byte than expected, this will get stuck in the loop until the end of file. Or if inputstream returns -1, for EOF like S3AInpustream, read hangs in this loop.

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              • Assignee:
                mickjermsurawong-stripe Mick Jermsurawong
                Reporter:
                mickjermsurawong-stripe Mick Jermsurawong
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