szehon-ho commented on code in PR #5378:
URL: https://github.com/apache/iceberg/pull/5378#discussion_r933698789


##########
hive-metastore/src/main/java/org/apache/iceberg/hive/CachedClientPool.java:
##########
@@ -56,9 +57,16 @@ public class CachedClientPool implements 
ClientPool<IMetaStoreClient, TException
     init();
   }
 
+  @VisibleForTesting
+  static String cacheKey(Configuration conf) {
+    return String.format(
+        "%s:%s",
+        conf.get(HiveConf.ConfVars.METASTOREURIS.varname, ""), 
conf.get(CATALOG_DEFAULT, ""));

Review Comment:
   Yea for Spark job it may be rare but HiveCatalog could be used beyond it, 
like in a long lived server, for example.



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