rbalamohan commented on code in PR #1639:
URL: https://github.com/apache/avro/pull/1639#discussion_r858536753
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lang/java/avro/src/main/java/org/apache/avro/file/DataFileReader12.java:
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@@ -61,6 +61,7 @@ public DataFileReader12(SeekableInput sin, DatumReader<D>
reader) throws IOExcep
this.in = new DataFileReader.SeekableInputStream(sin);
byte[] magic = new byte[4];
+ in.seek(0); // seek to 0 to read magic header
in.read(magic);
Review Comment:
since magic has been already initialized to 4 bytes, partial reads will
anyways not match the magic. This wouldn't be an issue.
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