kbendick commented on a change in pull request #2792:
URL: https://github.com/apache/iceberg/pull/2792#discussion_r671558620
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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:
Please let me know if you think the current format string is better (or
if you have any suggestions).
Having spent time looking through this, I'd be happy to try to find a more
generic solution for the future, as generally speaking all engines likely have
this request / need in some form or another.
Thanks again @pvary!
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