smaheshwar-pltr commented on issue #17989:
URL: https://github.com/apache/iceberg/issues/17989#issuecomment-5564807285
Example reproduction below. It's a bit heavy; there may have been an easier
repro here but couldn't find one easily.
```java
@TestTemplate
public void testConcurrentCompactionPreservesEncryptionKeys() {
// Partitioned encrypted table: one file per partition => many file
groups for rewrite
sql("DROP TABLE %s", tableName);
sql(
"CREATE TABLE %s (id bigint, data string) USING iceberg PARTITIONED
BY (id) "
+ "TBLPROPERTIES ('encryption.key-id'='%s',
'format-version'='3')",
tableName, UnitestKMS.MASTER_KEY_NAME1);
sql("INSERT INTO %s SELECT id, 'v' FROM (SELECT explode(sequence(0,
511)) AS id)", tableName);
validationCatalog.initialize(catalogName, catalogConfig);
Table table = validationCatalog.loadTable(tableIdent);
SparkActions.get(spark)
.rewriteDataFiles(table)
.binPack()
.option("partial-progress.enabled", "true")
.option("partial-progress.max-commits", "2000")
.option("max-concurrent-file-group-rewrites", "128")
.option("rewrite-all", "true")
.execute();
assertThat(currentDataFiles(validationCatalog.loadTable(tableIdent))).isNotEmpty();
}
```
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