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https://issues.apache.org/jira/browse/PARQUET-2153?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17553635#comment-17553635
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Timothy Miller commented on PARQUET-2153:
-----------------------------------------
Is this related to anything fixed by
[https://github.com/apache/parquet-mr/pull/957] ?
> Cannot read schema from parquet file
> ------------------------------------
>
> Key: PARQUET-2153
> URL: https://issues.apache.org/jira/browse/PARQUET-2153
> Project: Parquet
> Issue Type: Bug
> Components: parquet-avro
> Affects Versions: 1.12.3
> Reporter: Nils Broman
> Priority: Major
>
> I'm trying to generate a Avro schema from a parquet file. I get the issue
> both when using
> [https://github.com/benwatson528/intellij-avro-parquet-plugin] in Intellij as
> well as when I'm using my own implementation of generating a schema.
> The parquet file contains nested entries and arrays: \{"a": a, "b": [{"c":
> c}]}
> I get the following error message:
> {code:java}
> org.apache.avro.SchemaParseException: Can't redefine: element
> at org.apache.avro.Schema$Names.put(Schema.java:1547)
> at org.apache.avro.Schema$NamedSchema.writeNameRef(Schema.java:810)
> at org.apache.avro.Schema$RecordSchema.toJson(Schema.java:972)
> at org.apache.avro.Schema$UnionSchema.toJson(Schema.java:1239)
> at org.apache.avro.Schema$RecordSchema.fieldsToJson(Schema.java:1000)
> at org.apache.avro.Schema$RecordSchema.toJson(Schema.java:984)
> at org.apache.avro.Schema$ArraySchema.toJson(Schema.java:1134)
> at org.apache.avro.Schema$UnionSchema.toJson(Schema.java:1239)
> at org.apache.avro.Schema$RecordSchema.fieldsToJson(Schema.java:1000)
> at org.apache.avro.Schema$RecordSchema.toJson(Schema.java:984)
> at org.apache.avro.Schema$UnionSchema.toJson(Schema.java:1239)
> at org.apache.avro.Schema$RecordSchema.fieldsToJson(Schema.java:1000)
> at org.apache.avro.Schema$RecordSchema.toJson(Schema.java:984)
> at org.apache.avro.Schema.toString(Schema.java:424)
> at org.apache.avro.Schema.toString(Schema.java:396)
> at
> uk.co.hadoopathome.intellij.viewer.fileformat.ParquetFileReader.getSchema(ParquetFileReader.java:65)
> at
> uk.co.hadoopathome.intellij.viewer.FileViewerToolWindow$2.doInBackground(FileViewerToolWindow.java:196)
> at
> uk.co.hadoopathome.intellij.viewer.FileViewerToolWindow$2.doInBackground(FileViewerToolWindow.java:184)
> at java.desktop/javax.swing.SwingWorker$1.call(SwingWorker.java:304)
> at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
> at java.desktop/javax.swing.SwingWorker.run(SwingWorker.java:343)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
> at java.base/java.lang.Thread.run(Thread.java:829) {code}
> It appears to be an issue similar to
> [PARQUET-1441|https://issues.apache.org/jira/browse/PARQUET-1441] or
> [PARQUET-1409|https://issues.apache.org/jira/browse/PARQUET-1409].
> Or could it possibly be something wrong in my parquet file?
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