Apache Druid Q&A

Core Approximation, granularities, aggregators, filters, and expressions Google Groups Tap into more community knowledge with this read-only copy of the druid-user Google Group. Security Authentication, authorisation, encryption, and obfuscation Operations Metrics, caching, SYS tables, affinity, scaling, HA, DR, and tuning Data Management Segments, balance, load rules and tiers, lookups, compaction, destruction, and null handling Analytics Questions about SQL and Druid Native query design, execution, and optimization. Deployment Installation, upgrade, migration, dependencies, emitters, cores, RAM, and disk Ingestion TIme, dims, metrics, transform / filter, media types, execution, 2nd partitioning, input sources, supervisors.

Topic	Replies	Views	Activity
About the Apache Druid Q&A category Apache Druid Q&A	0	152	November 3, 2020
Whatever I do I am unable to get more than 5 to 10 TPS Deployment	19	177	January 28, 2022
Druid on ECS Fargate parsing .parquet files problem Deployment	7	70	January 27, 2022
Native Batch Ingestion vs. Hadoop Batch Ingestion Ingestion ingestion	2	30	January 25, 2022
How can I Pulling Druid Query metrics into prometheus Core prometheus	1	20	January 25, 2022
Continuous Batch Ingestion from S3 Ingestion s3	4	44	January 24, 2022
Where does Druid store older tasks ids? Operations	3	34	January 20, 2022
What does Druid use the druid_datasource metadata table for? Ingestion kafka	11	114	January 20, 2022
Choose division result precision Analytics	4	42	January 20, 2022
Request to join #druid slack channel Operations slack	1	25	January 19, 2022
Tuning bufferSize on MiddleManager Ingestion	2	41	January 18, 2022
Kafka ingestion task lookup loading out of memory Ingestion ingestion , kafka	7	81	January 11, 2022
What is the bracket '[]' Datasource in Query Metrics? Operations	0	20	January 11, 2022
Fail to configure data ingestion from minio object storage Deployment s3	16	241	January 10, 2022
Parse access logs wrapped in docker logs (json) Ingestion transform	5	109	January 10, 2022
Vulnerability found in 0.22.1 -> CVE-2021-45046 Security	2	65	January 5, 2022
Pull-Deps returning 404 and 501 errors Operations	2	30	January 5, 2022
Druid containers crashing intermittently Deployment docker	3	59	January 5, 2022
Druid re-indexing unused segments Ingestion	4	57	January 5, 2022
Druid native ingestion Ingestion ingestion	4	60	January 5, 2022
Druid update from 20.2 to 21.0 breaks entry in hdfs Deployment hdfs	3	49	January 5, 2022
Total data size equal to 0 when data is present in datasource Core	0	20	January 5, 2022
Unable to configure specific emiiter Operations	6	375	January 5, 2022
How to retrieve real time data coming from tranquility Deployment ingestion	1	34	January 4, 2022
Rollup Ingestion on weighted metric Ingestion	7	112	January 4, 2022
Unknown exception : No known server Operations	2	46	December 30, 2021
Log4j vulnerability Handling Deployment	1	65	December 23, 2021
Druid compaction confusion, what exactly is maxTotalRows? Data Management	3	58	December 20, 2021
Cannot ingest data from s3 in a different region than the Druid installation Ingestion s3	5	87	December 20, 2021
Nested json input processsing Ingestion kafka , json	4	75	December 15, 2021