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https://issues.apache.org/jira/browse/AVRO-2944?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17220196#comment-17220196
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Mick Jermsurawong commented on AVRO-2944:
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This PR aims to address this problem https://github.com/apache/avro/pull/969
> 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
> Priority: Major
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> 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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