Mick Jermsurawong created AVRO-2944:
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Summary: DataFileReader has incorrect logic reading magic header
Key: AVRO-2944
URL: https://issues.apache.org/jira/browse/AVRO-2944
Project: Apache Avro
Issue Type: Bug
Components: java
Affects Versions: 1.9.2
Reporter: Mick Jermsurawong
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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