szehon-ho commented on code in PR #6570:
URL: https://github.com/apache/iceberg/pull/6570#discussion_r1162197847
##########
hive-metastore/src/main/java/org/apache/iceberg/hive/HiveTableOperations.java:
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@@ -572,8 +595,39 @@ private static boolean hiveEngineEnabled(TableMetadata
metadata, Configuration c
ConfigProperties.ENGINE_HIVE_ENABLED,
TableProperties.ENGINE_HIVE_ENABLED_DEFAULT);
}
+ /**
+ * Returns if the hive locking should be enabled on the table, or not.
+ *
+ * <p>The decision is made like this:
+ *
+ * <ol>
+ * <li>Table property value {@link TableProperties#HIVE_LOCK_ENABLED}
+ * <li>If the table property is not set then check the hive-site.xml
property value {@link
+ * ConfigProperties#LOCK_HIVE_ENABLED}
+ * <li>If none of the above is enabled then use the default value {@link
+ * TableProperties#HIVE_LOCK_ENABLED_DEFAULT}
+ * </ol>
+ *
+ * @param metadata Table metadata to use
+ * @param conf The hive configuration to use
+ * @return if the hive engine related values should be enabled or not
+ */
+ private static boolean hiveLockEnabled(TableMetadata metadata, Configuration
conf) {
Review Comment:
Sorry I'm trying but still not understanding how having a client level
(catalog level) config, that is fallback to table config, allows case 2/3?
To me as it is, it seems it causes more potential problem than solves
(client says NO_LOCK but table does not have NO_LOCK). Unless we want to do
catalog config as a safety check (throw exception if catalog config is NO_LOCK
but table does not have NO_LOCK), as I was mentioning before, which makes more
sense to me.
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