AvroParquetWriter can't save object who can have link to object of same type
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- Java
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Description
When i try to write instance of UserTestOne created from following schema
{"namespace": "com.example.avro",
"type": "record",
"name": "UserTestOne",
"fields": [{"name": "name", "type": "string"}, {"name": "friend", "type": ["null", "UserTestOne"], "default":null} ]
}
I get java.lang.StackOverflowError
**Environment**: parquet version 1.5.0
**Reporter**: [Dmitriy](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=dimaga) / @dimaga
**Note**: *This issue was originally created as [PARQUET-129](https://issues.apache.org/jira/browse/PARQUET-129). Please see the [migration documentation](https://issues.apache.org/jira/browse/PARQUET-2502) for further details.*
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Research direction
The issue provides a recursive UserTestOne schema and reports a StackOverflowError from AvroParquetWriter. Start by reproducing the failure with the shown schema and a UserTestOne instance, then trace the writer's recursive-schema handling. Done means the recursive object can be written without overflowing the stack and the behavior is covered by a regression test.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- data
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 25/100