Thanks yes we will update the Wiki. Am not 100%, but I hope this will make it to 2.6.3, we are pushing it to the finish line. Thanks. ... View more

@Roshan Dissanayake 1- keep in mind that the indexes have some extra overhead thus technically speaking some part of the data will be replicated but in a form of index thus compressed and more concise. 2- Hive will not manage the lifecycle of druid indexes you need to setup some Ozie (or any another workflow manager) to do the create table / insert into statements or drop table to keep the indexes up to date. 3- on a side not sure how the updates lands in your hive system, but if your pattern is mostly append/insert over a period of time then druid is designed for that usecase since data will be partition using time column. ... View more

If you set these properties by hand, take into account that in HDP 3.x the route for the Hive Warehouse has been changed to: /warehouse/tablespace/managed/hive Also in the Ambari configuration for Druid 3.1 the property is set to: hive.druid.storage.storageDirectory =  {{druid_storage_dir}} which is expanded to /apps/druid/warehouse, a different path from the Hive Warehouse. ... View more

@Burak Bicen I will suggest opening a separate thread will be more useful. As this is slightly unrelated question to this thread. Even though the topic is related to Druid. That way you might get more accurate response. ... View more

Hello again, So your answer is the right one to my problem. No more error messages. So thank you a lot. Arnault ... View more

Hello @Slim, Thank you a lot I will check your link. ... View more

@Slim Thanks for your advise. You are right. The NPE is a side effect of running out of memory. It works perfectly (response under 1s with cached data) after reducing Druid Historical buffer size. ... View more

Right. I didn't mean to imply a relationship between Druid and Slider. Just meant: "Also want to understand how to assign processes to servers during installation of Druid." Thanks! ... View more

This seems to be unrelated, can you please start new thread and make sure to attach the actual logs of the job and the task spec, Thanks. ... View more

HI @Slim I'm seeing "Connected to Druid but could not retrieve datasource information" when I create a table. Could you have any idea where I should check? ... View more