mirror of https://github.com/apache/druid.git
35 lines
1.9 KiB
Markdown
35 lines
1.9 KiB
Markdown
---
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id: streaming
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title: "Streaming ingestion"
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---
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Apache Druid can consume data streams from the following external streaming sources:
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* Apache Kafka through the bundled [Kafka indexing service](kafka-ingestion.md) extension.
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* Amazon Kinesis through the bundled [Kinesis indexing service](kinesis-ingestion.md) extension.
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Each indexing service provides real-time data ingestion with exactly-once stream processing guarantee.
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To use either of the streaming ingestion methods, you must first load the associated extension on both the Overlord and the MiddleManager. See [Loading extensions](../configuration/extensions.md#loading-extensions) for more information.
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Streaming ingestion is controlled by a continuously running [supervisor](supervisor.md).
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The supervisor oversees the state of indexing tasks to coordinate handoffs, manage failures, and ensure that scalability and replication requirements are maintained.
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You start a supervisor by submitting a JSON specification, often referred to as the supervisor spec, either though the Druid web console or using the [Supervisor API](../api-reference/supervisor-api.md). |