apache/druid

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Apache Druid: a high performance real-time analytics database.

Stars: 14.1k
Forks: 3.8k
Open beginner issues: 0
Indexed issues: 649
Avg merge: 2d 58m
Merged PRs (30d): 233

Dominant language: Java
License: Apache-2.0
Last GitHub push: Sep 12, 2026
Latest indexed: Sep 14, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed

Open All

648 open issues indexed

Tasks can fail to allocate segments with segment lock if segment granularity has changed Open

Area - Batch Ingestion Area - Streaming Ingestion Bug

apache/druid#10220 · 0 comments · 3 reactions · 0 assignees · Indexed Sep 14, 2026
Critical Calcite StackOverflowError in 1.21.0 causing failure in WHERE with too many conditions Open

Area - SQL Bug

apache/druid#10225 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Increase reusability of retention rule configurations Open

Design Review Feature/Change Description

apache/druid#10237 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Non-realtime tasks can get stuck forever in waiting state after overlord restarts if their locks are revoked Open

Bug

apache/druid#10251 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Failed Query due to missing lookup on some servers Open

Design Review Feature/Change Description

apache/druid#10294 · 9 comments · 3 reactions · 0 assignees · Indexed Sep 14, 2026
Remove eager loading and on-heap caching of "internalFiles" map in SmooshedFileMapper Open

Design Review Performance Proposal

apache/druid#10296 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Metrics reporting system for native parallel batch ingestion Open

Area - Batch Ingestion Design Review Proposal

apache/druid#10352 · 4 comments · 9 reactions · 0 assignees · Indexed Sep 14, 2026
Update cassandra-storage extension to use the Datastax java driver instead of Astyanax Open

Area - Dependencies Area - Extension Security

apache/druid#10358 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Better handling of different servers having different versions of broadcast table segments Open

Area - Querying Bug

apache/druid#10444 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Posible druid template for Openshift/Kubernetes Open

Design Review Proposal

apache/druid#10468 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Incorrect results (including nulls) when querying string column with col <> '' and col is not null Open

Area - SQL Bug

apache/druid#10525 · 3 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Create a travis build that runs Druid on a K8S Cluster and runs the integration tests Open

Contributions Welcome

apache/druid#10542 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Plan cannot be built when using virtual column and UNION ALL in SQL query Open

Area - SQL Feature

apache/druid#10548 · 7 comments · 3 reactions · 0 assignees · Indexed Sep 14, 2026
Add docs for Kafka SASL / SCRAM configuration to Apache Kafka Ingestion Open

Area - Documentation

apache/druid#10572 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Proposal: Separate Primary Replicant loading from the rest of HistoricalManagementDuties Open

Area - Segment Balancing/Coordination Design Review Proposal

apache/druid#10606 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
CachingCostBalancerStrategy does not load multiple segments having granularity ALL Open

Area - Segment Balancing/Coordination

apache/druid#10617 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
There is a vulnerability in ICU for C/C++/Java 55.1,upgrade recommended Open

Area - Dependencies Security

apache/druid#10633 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
There is a vulnerability in Apache Hadoop 2.8.5,upgrade recommended Open

Area - Dependencies Security

apache/druid#10636 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Hadoop ingestion ignores useDefaultValueForNull=false for metrics with rollup enabled Open

Area - Batch Ingestion Bug

apache/druid#10687 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Integration Tests Broken/Flaky in TravisCI Open

Area - Testing Dev Productivity Development Blocker Flaky test

apache/druid#10691 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
User queries storage in zookeeper Open

Design Review Proposal

apache/druid#10782 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
A new Druid MiddleManager Resource Scheduling Model Based On K8s(MOK) Open

Design Review Kubernetes Proposal

apache/druid#10824 · 3 comments · 5 reactions · 0 assignees · Indexed Sep 14, 2026
Integration test fails after it hits the pull rate limit for docker image Open

Area - Testing Flaky test

apache/druid#10835 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
The selection of 100 million rows was interruptted and query node throws an error - "Unexpected end-of-input: expected close marker for Array" Open

Area - SQL Bug

apache/druid#10907 · 1 comment · 2 reactions · 0 assignees · Indexed Sep 14, 2026
Compaction tasks with segment locking can fail when segment granularity is changed Open

Area - Batch Ingestion Bug

apache/druid#10911 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Orc indexing issues while handling 16 byte sketches Open

Area - Batch Ingestion Bug

apache/druid#10934 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add more robust testing to streaming ingestion integration tests Open

Area - Testing Contributions Welcome Feature/Change Description Starter

apache/druid#10971 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
ParseException while parsing uintiger and IEEE-754 64-bit floating-point number using the InfluxParser Open

Area - Ingestion Bug

apache/druid#10993 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Bump Thrift library version Open

Area - Extension Security

apache/druid#11028 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Metrics Emitter timeout after 12-16ms Open

Area - Metrics/Event Emitting

apache/druid#11033 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Extension [/opt/apache-druid-0.20.1/dist/druid/extensions/druid-orc-extensions] specified in “druid.extensions.loadList” didn’t exist? Open

Area - Extension

apache/druid#11062 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Ingestion task failed due to failure of writing index logs to HDFS Open

Area - Deep Storage

apache/druid#11064 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 14, 2026
casting numbers, and combining with other sql operations doesn't seem to work right Open

Area - SQL

apache/druid#11065 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Investigate how we can reduce the size of binary distribution Open

Apache Area - Extension

apache/druid#11125 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
create temporary file in directory with secure permissions Open

Security

apache/druid#11130 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Performance degradation for sketch queries with higher levels of broker merge parallelism Open

Area - Querying Performance

apache/druid#11133 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 14, 2026
druid sql - left join woes (inconsistent behaviors) Open

Area - SQL

apache/druid#11155 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Feature Proposal] Improve error reporting for task and query failures Open

Area - Ingestion Error handling Proposal

apache/druid#11165 · 6 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Kafka ingestion ignores segment granularities that aren't "simple" granularities Open

Area - Streaming Ingestion Bug

apache/druid#11179 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Ingestion tasks stuck on PENDING for a while Open

Area - Batch Ingestion Area - Streaming Ingestion Bug

apache/druid#11196 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
incorrect druid SQL results using GROUP BY and COUNT Open

Area - SQL

apache/druid#11197 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Druid Zookeeper Connection Error with Kafka Datasource Open

Area - ZooKeeper/Curator

apache/druid#11211 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
DruidSQL should allow (and trim out) trailing semicolons; Open

Area - Query UI Area - Querying Feature/Change Description

apache/druid#11212 · 0 comments · 3 reactions · 0 assignees · Indexed Sep 14, 2026
doubleMean ignores useDefaultValueForNull=false, treats nulls as zeros Open

Area - Null Handling

apache/druid#11219 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Create e2e tests that include datasources with overshadowed and unpunished segments Open

Area - Testing Area - Web Console

apache/druid#11229 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Minimize memory utilization in Sinks/Hydrants for native batch ingestion Open

Area - Batch Ingestion Design Review Proposal

apache/druid#11231 · 10 comments · 5 reactions · 0 assignees · Indexed Sep 14, 2026
Druid Route Log: Failed to get NetInterfaceStat[eth0:1] Open

Area - Router

apache/druid#11239 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Checking maxRowsPerSegment after segment merge in dynamic partitioning Open

Area - Ingestion Improvement

apache/druid#11252 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
SQL query uses TopN when grouping by time and other dimension Open

Area - SQL Feature/Change Description

apache/druid#11264 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Tasks failing due to Coordinator it's too busy moving large amounts of segments in the Historicals Open

Area - Segment Balancing/Coordination

apache/druid#11274 · 2 comments · 3 reactions · 0 assignees · Indexed Sep 14, 2026

apache/druid

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