soumilshah1995 opened a new issue, #16567:
URL: https://github.com/apache/iceberg/issues/16567
### Apache Iceberg version
1.11.0 (latest release)
### Query engine
Spark
### Please describe the bug 🐞
## Bug report
### Apache Iceberg version
1.11.0 (`org.apache.iceberg:iceberg-spark-runtime-4.0_2.13:1.11.0`)
### Spark version
Spark 4.0.2-amzn-0 (AWS EMR), PySpark, `writeTo(...).append()`
### Catalog
Iceberg REST catalog → Amazon S3 Tables (`SparkCatalog`, `S3FileIO`)
### What happened
Append to an Iceberg v3 table with **VARIANT** columns fails during Parquet
file close when variant shredding is enabled and default column metrics are
collected.
- Read from S3 Parquet: OK
- `CREATE TABLE`: OK
- **Append**: fails in stage 3 at `ParquetWriter.metrics()` /
`DataWriter.close()`
Dataset: ~669M rows (~216 GB), with `parse_json(PROPERTIES)` and
`parse_json(V)`.
### Error message
```text
java.util.NoSuchElementException
at
org.apache.iceberg.relocated.com.google.common.collect.Iterables.getOnlyElement(Iterables.java:262)
at
org.apache.iceberg.parquet.ParquetMetrics$MetricsVisitor$MetricsVariantVisitor.value(ParquetMetrics.java:480)
at
org.apache.iceberg.parquet.ParquetMetrics$MetricsVisitor$MetricsVariantVisitor.value(ParquetMetrics.java:410)
at
org.apache.iceberg.parquet.ParquetVariantVisitor.visitValue(ParquetVariantVisitor.java:215)
at
org.apache.iceberg.parquet.ParquetVariantVisitor.visitObjectFields(ParquetVariantVisitor.java:265)
at
org.apache.iceberg.parquet.ParquetVariantVisitor.visitValue(ParquetVariantVisitor.java:226)
at
org.apache.iceberg.parquet.ParquetVariantVisitor.visit(ParquetVariantVisitor.java:183)
at
org.apache.iceberg.parquet.ParquetMetrics$MetricsVisitor.variant(ParquetMetrics.java:362)
at
org.apache.iceberg.parquet.TypeWithSchemaVisitor.visitVariant(TypeWithSchemaVisitor.java:221)
at
org.apache.iceberg.parquet.ParquetMetrics.metrics(ParquetMetrics.java:101)
at
org.apache.iceberg.parquet.ParquetWriter.metrics(ParquetWriter.java:173)
at org.apache.iceberg.io.DataWriter.close(DataWriter.java:90)
at
org.apache.iceberg.io.RollingFileWriter.closeCurrentWriter(RollingFileWriter.java:126)
at
org.apache.iceberg.spark.source.SparkWrite$PartitionedDataWriter.commit(SparkWrite.java:838)
### Willingness to contribute
- [ ] I can contribute a fix for this bug independently
- [ ] I would be willing to contribute a fix for this bug with guidance from
the Iceberg community
- [x] I cannot contribute a fix for this bug at this time
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
