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https://issues.apache.org/jira/browse/AVRO-1302?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14170939#comment-14170939
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Lars Francke commented on AVRO-1302:
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We are facing the same problem.
I tried to build an Avro file with just one block/record and checked the
resulting file. The header looks correct and the sync marker exists at the end
of the block/file as well so that is all correct. Some other internal
boundary/length thing must be wrong. For us we were trying to write a byte
array in Python and that'd cause the error. If we leave out the byte array
everything works.
> Files written via Python and Avro 1.7.4 on Windows can't be read using Java
> program
> -----------------------------------------------------------------------------------
>
> Key: AVRO-1302
> URL: https://issues.apache.org/jira/browse/AVRO-1302
> Project: Avro
> Issue Type: Bug
> Components: python
> Affects Versions: 1.7.4
> Reporter: Christopher Conner
> Priority: Minor
>
> I'm not sure if this is a Python issue, Avro issue or Windows issue.
> However, if create an Avro file on Windows using Python 2.7.4 and Avro 1.7.4.
> Then try to read it with a java program, it fails with:
> Successfully opened the Python avro file now I'm going to attempt to read
> from it
> Exception in thread "main" org.apache.avro.AvroRuntimeException:
> java.io.IOException: Invalid sync!
> at org.apache.avro.file.DataFileStream.hasNext(DataFileStream.java:210)
> at JavaPythonAvroExample.main(JavaPythonAvroExample.java:27)
> Caused by: java.io.IOException: Invalid sync!
> at
> org.apache.avro.file.DataFileStream.nextRawBlock(DataFileStream.java:293)
> at org.apache.avro.file.DataFileStream.hasNext(DataFileStream.java:198)
> ... 1 more
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