astronautas opened a new issue, #14982:
URL: https://github.com/apache/iceberg/issues/14982
### Apache Iceberg version
1.6.1
### Query engine
Spark
### Please describe the bug 🐞
Hey,
We're experimenting setting up an Iceberg-based data lakehouse on BigLake
Metastore. We tried to connect Dataproc Spark to BigLake via REST catalog
endpoint, but unfortunately it only partially works... We use vended
credentials mode.
Spark: 3.5.3, Dataproc: 2.2.38, Iceberg: 1.6.1, Iceberg GCP bundle: 1.6.1.
"org.apache.iceberg:iceberg-spark-runtime-3.5_2.12:1.6.1,org.apache.iceberg:iceberg-gcp-bundle:1.6.1",
```
spark = (
SparkSession.builder.appName("biglake")
.config(
"spark.jars.packages",
"org.apache.iceberg:iceberg-spark-runtime-3.5_2.12:1.6.1,org.apache.iceberg:iceberg-gcp-bundle:1.6.1",
)
.config(
f"spark.sql.catalog.{catalog_name}",
"org.apache.iceberg.spark.SparkCatalog"
)
.config(f"spark.sql.catalog.{catalog_name}.type", "rest")
.config(
f"spark.sql.catalog.{catalog_name}.uri",
"https://biglake.googleapis.com/iceberg/v1/restcatalog";,
)
.config(f"spark.sql.catalog.{catalog_name}.warehouse", "gs://{project}")
.config(
f"spark.sql.catalog.{catalog_name}.header.x-goog-user-project",
project
)
.config(
f"spark.sql.catalog.{catalog_name}.oauth2-server-uri",
"https://biglake.googleapis.com/iceberg/v1/restcatalog/v1/oauth/tokens";,
)
.config(
f"spark.sql.catalog.{catalog_name}.rest.auth.type",
"org.apache.iceberg.gcp.auth.GoogleAuthManager",
)
.config(
f"spark.sql.catalog.{catalog_name}.io-impl",
"org.apache.iceberg.gcp.gcs.GCSFileIO",
)
.config(
f"spark.sql.catalog.{catalog_name}.header.X-Iceberg-Access-Delegation",
"vended-credentials",
)
.config(f"spark.sql.catalog.{catalog_name}.rest-metrics-reporting-enabled",
"false")
.config(
"spark.sql.extensions",
"org.apache.iceberg.spark.extensions.IcebergSparkSessionExtensions",
)
.config("spark.sql.defaultCatalog", "biglake")
.getOrCreate()
)
```
Metadata (catalog) exploration works (makes us think auth eventually
succeeds), but immediately fails when querying actual data e.g. `df =
spark.sql("SELECT count(*) FROM feature_data.nodes")` with `Invalid credentials
endpoint: null`.
### 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
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