henrib commented on code in PR #5882:
URL: https://github.com/apache/hive/pull/5882#discussion_r2251813193
##########
standalone-metastore/metastore-rest-catalog/src/main/java/org/apache/iceberg/rest/HMSCachingCatalog.java:
##########
@@ -63,6 +62,27 @@ public List<Namespace> listNamespaces(Namespace nmspc)
throws NoSuchNamespaceExc
return hiveCatalog.listNamespaces(nmspc);
}
+ @Override
+ public Table loadTable(TableIdentifier identifier) {
+ TableIdentifier canonicalIdentifier = identifier.toLowerCase();
+ Table cachedTable = tableCache.getIfPresent(canonicalIdentifier);
+ if (cachedTable != null) {
+ String location = hiveCatalog.getTableLocation(canonicalIdentifier);
+ if (location == null) {
+ LOG.debug("Table {} has no location, returning cached table without
location", canonicalIdentifier);
+ } else if (!location.equals(cachedTable.location())) {
+ LOG.debug("Cached table {} has a different location than the one in
the catalog: {} != {}",
+ canonicalIdentifier, cachedTable.location(), location);
+ } else {
+ LOG.debug("Returning cached table: {}", canonicalIdentifier);
+ return cachedTable;
+ }
+ // Invalidate the cached table if the location is different
+ tableCache.invalidate(cachedTable);
Review Comment:
Updated to a more robust and more efficient version.
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