pvary commented on a change in pull request #2792:
URL: https://github.com/apache/iceberg/pull/2792#discussion_r671099247
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File path: spark/src/main/java/org/apache/iceberg/spark/SparkUtil.java
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@@ -170,4 +174,31 @@ public static boolean
useTimestampWithoutZoneInNewTables(RuntimeConfig sessionCo
return false;
}
+ /**
+ * Pulls any Catalog specific overrides for the Hadoop conf from the current
SparkSession, which can be
+ * set via spark.sql.catalog.$catalogName.hadoop.*
+ *
+ * The SparkCatalog allows for hadoop configurations to be overridden per
catalog, by setting
+ * them on the SQLConf, where the following will add the property
"fs.default.name" with value
+ * "hdfs://hanksnamenode:8020" to the catalog's hadoop configuration.
+ * SparkSession.builder()
+ * .config(s"spark.sql.catalog.$catalogName.hadoop.fs.default.name",
"hdfs://hanksnamenode:8020")
+ * .getOrCreate()
+ * @param spark The current Spark session
+ * @param catalogName Name of the catalog to find overrides for.
+ * @return the Hadoop Configuration that should be used for this catalog,
with catalog specific overrides applied.
+ */
+ public static Configuration hadoopConfCatalogOverrides(SparkSession spark,
String catalogName) {
+ // Find keys for the catalog intended to be hadoop configurations
+ final String hadoopConfCatalogPrefix = String.format("%s.%s.%s",
SPARK_CATALOG_CONF_PREFIX, catalogName, "hadoop.");
Review comment:
I `"hadoop."` should be a `private static final String`.
Still not fan of using `hadoop.` instead of `override.` as mentioned on the
other issue, since we will need to have the similar things for Hive as well for
hive configurations too. This again will cause confusion for users who are
using Hive and Spark as well.
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