Query logging (request logging) will capture the queries made and users who made them in the broker log. To enable:
1. Add the following to the imply/conf/druid/_common/common.runtime.properties :
druid.request.logging.type=slf4j
2. Restart your Imply processes.
3. In the imply/var/sv/druid/broker.log you will see queries logged in JSON format with the user id.
Example output:
2018-11-07T16:14:15,378 INFO [DruidSchema-Cache-0] io.druid.sql.calcite.schema.DruidSchema - Refreshed metadata for dataSource[wikipedia] in 447 ms (1 segments queried, 0 segments left).
2018-11-07T16:14:26,574 INFO [qtp404994500-119] io.druid.server.log.LoggingRequestLogger - 2018-11-07T16:14:26.303Z 0:0:0:0:0:0:0:1 {"queryType":"topN","dataSource":{"type":"table","name":"wikipedia"},"virtualColumns":[],"dimension":{"type":"default","dimension":"page","outputName":"page","outputType":"STRING"},"metric":{"type":"LegacyTopNMetricSpec","metric":"sum_deleted"},"threshold":100,"intervals":{"type":"LegacySegmentSpec","intervals":["2016-06-26T21:32:00.000Z/2016-06-27T21:32:00.000Z"]},"filter":null,"granularity":{"type":"all"},"aggregations":[{"type":"doubleSum","name":"sum_deleted","fieldName":"deleted","expression":null}],"postAggregations":[],"context":{"implyDataCube":"wikipedia","implyFeature":"visualization","implyUser":"user","implyView":"wikipedia","implyViewTitle":"Wikipedia","priority":1,"queryId":"9fee261c-dd0d-4949-8376-09661b762841","timeout":40000},"descending":false} {"query/time":265,"query/bytes":7761,"success":true,"identity":"allowAll"}
References: