dengzhhu653 commented on a change in pull request #2441:
URL: https://github.com/apache/hive/pull/2441#discussion_r683080884
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File path:
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/RetryingHMSHandler.java
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@@ -61,6 +66,7 @@ public Result(Object result, int numRetries) {
private final Configuration origConf; // base configuration
private final Configuration activeConf; // active configuration
+ private final List<MetaStoreEndFunctionListener> endFunctionListeners; //
the end function listener
Review comment:
Thank you for the comments!
The `startFunctions` could be eliminated for the reasons listing above,
leaving the `MetaStoreEndFunctionListener` on `endFunction` that should be
taken care of, but introducing a `MetaStoreFunctionListener` makes things much
better and straightforward. A user can monitor the input or output of the
method, or implement his own audit logics.
This change also introduce some incompatibility in
[MetaStoreEndFunctionContext](https://github.com/apache/hive/blob/master/standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/MetaStoreEndFunctionContext.java#L55-L57),
the `getInputTableName` would return null for the old implemention.
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