Nils Broman created PARQUET-2153:
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Summary: 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
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 [link
title|https://issues.apache.org/jira/browse/PARQUET-1441] or [link
title|https://issues.apache.org/jira/browse/PARQUET-1409].
Or could it possibly be something wrong in my parquet file?
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