Thanks for kicking off the discussion Okumin! I am always in favor of dropping redundant/unused code so +1 for the removal.
I am not very familiar with the module but since HIVE-28904 was released as part of 4.1.0 and nobody complained I guess it's safe to continue the cleanup and remove the rest. Best, Stamatis On Thu, Aug 20, 2026 at 10:05 AM Shohei Okumiya <[email protected]> wrote: > 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 >
