Apache Druid vs Siddhi
Apache Druid
druid.apache.orgSiddhi
siddhi.ioSide by side
| Figure | Apache Druid | Siddhi |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | — |
| Windows | — | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 0 |
| Spec score · Stream Analytics Software | 9.0 (#2) | 7.4 (#21) |
| Deployment | Druid can run on commodity hardware in *NIX environments and is designed to run in AWS, GCP, Azure, and other cloud environments. | Siddhi can run embedded as a Java or Python library, as a microservice on bare metal or a VM, in Docker, or on Kubernetes. |
| Integrations | Core extensions support systems and formats including S3, HDFS, Google Cloud Storage, Azure, Kafka, Kinesis, Avro, ORC, Parquet, MySQL, and PostgreSQL. | Supported event sources and destinations listed include Kafka, NATS, RabbitMQ, HTTP, gRPC, JMS, MQTT, Amazon SQS, Google Pub/Sub, email, files, and WebSocket. |
| License | Apache Druid and its documentation are licensed under the Apache License, Version 2.0. | The Siddhi license page identifies Apache License 2.0. |
| Operating systems | The quickstart supports Linux, Mac OS X, and other Unix-like operating systems; Windows is not supported. | The download page lists MacOS and Linux as supported platforms for PySiddhi 5.1.0. |
| Reliability | Druid provides continuous backup, automated recovery, and multi-node replication for high availability and durability. | The homepage claims zero event loss and exactly-once event processing. |
| Security | Security features include TLS, authentication, and authorization, but they are disabled by default and the documentation says to configure them for production. | WSO2 asks vulnerability reports to be sent privately to its security mailing list and says initial response time will be under one hour. |
| Support | The project directs users to its community network for help using Druid. | The site links to community support resources including a mailing list, contribution information, and security reporting. |
| What it does | Apache Druid is a real-time analytics database for sub-second queries on streaming and batch data at scale. | Siddhi is an open-source stream and complex event processing platform for building event-driven applications. |
Plans
In their own words
Apache Druid
Apache Druid is a free, open-source analytics database for querying streaming and batch data. It is designed to return OLAP queries in milliseconds, including on high-cardinality datasets with billions to trillions of rows. The project describes applications ranging from hundreds to 100,000 queries per second. Native Apache Kafka and Amazon Kinesis integrations support low-latency ingestion and querying as data arrives. Druid organizes ingested data into columnar, time-indexed, encoded and compressed storage. Queries can use Druid SQL or JSON-over-HTTP, and joins are available during ingestion or at query time. Its web console can load data, manage datasources and tasks, show server status and run queries. Extensions connect to storage, databases and formats including S3, HDFS, Azure, PostgreSQL, Avro, ORC and Parquet. Druid can be self-hosted on Linux, macOS and other Unix-like systems; Windows is not supported. The local quickstart needs at least 6 GiB of RAM and Java 17. Production security controls require configuration.