[ https://issues.apache.org/jira/browse/PARQUET-2153?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Nils Broman updated PARQUET-2153: --------------------------------- Description: 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? was: 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? > 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? -- This message was sent by Atlassian Jira (v8.20.7#820007)