Hi Hive users and developers, I propose removing the llap-ext-client module[1] and the related parameters and code.
If I understand correctly, the module includes some classes to integrate an external client, such as Apache Spark, with Hive LLAP daemons. However, HIVE-28904 removed the direct interface, and a test tool[2] remains as the only real use case. Therefore, I suspect we can safely remove the module and `hive.llap.external.*` in HiveConf, along with all configurations and code used only by the feature. Since llap-ext-client supports unusual workloads, I believe decommissioning it would meaningfully reduce our maintenance burden. Please share your thoughts about this proposal. Best, Okumin - [1] https://github.com/apache/hive/tree/master/llap-ext-client - [2] https://github.com/apache/hive/blob/master/llap-ext-client/src/java/org/apache/hadoop/hive/llap/LlapDump.java
