pgaref commented on a change in pull request #1657:
URL: https://github.com/apache/hive/pull/1657#discussion_r521472364



##########
File path: 
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/HiveMetaStore.java
##########
@@ -571,9 +571,12 @@ public void init() throws MetaException {
       listeners = 
MetaStoreServerUtils.getMetaStoreListeners(MetaStoreEventListener.class, conf,
           MetastoreConf.getVar(conf, ConfVars.EVENT_LISTENERS));
       listeners.add(new SessionPropertiesListener(conf));
-      transactionalListeners = 
MetaStoreServerUtils.getMetaStoreListeners(TransactionalMetaStoreEventListener.class,
-          conf, MetastoreConf.getVar(conf, 
ConfVars.TRANSACTIONAL_EVENT_LISTENERS));
-      transactionalListeners.add(new AcidEventListener(conf));
+      transactionalListeners = new ArrayList() {{

Review comment:
       Hey @pkumarsinha thanks for the PR -- along the same lines as @aasha , 
would it make sense to have have some checks in place ensuring some order 
depending on the Listener type instead of just relying on the user (who will 
highly likely ignore the conf comment you added above)




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