48 lines
1.5 KiB
Plaintext
48 lines
1.5 KiB
Plaintext
---
|
|
title: Write from Kafka
|
|
description: This document describes how to insert data into TDengine using Kafka.
|
|
---
|
|
|
|
import Tabs from "@theme/Tabs";
|
|
import TabItem from "@theme/TabItem";
|
|
import PyKafka from "./_py_kafka.mdx";
|
|
|
|
## About Kafka
|
|
|
|
Apache Kafka is an open-source distributed event streaming platform, used by thousands of companies for high-performance data pipelines, streaming analytics, data integration, and mission-critical applications. For the key concepts of kafka, please refer to [kafka documentation](https://kafka.apache.org/documentation/#gettingStarted).
|
|
|
|
### kafka topic
|
|
|
|
Messages in Kafka are organized by topics. A topic may have one or more partitions. We can manage kafka topics through `kafka-topics`.
|
|
|
|
create a topic named `kafka-events`:
|
|
|
|
```
|
|
bin/kafka-topics.sh --create --topic kafka-events --bootstrap-server localhost:9092
|
|
```
|
|
|
|
Alter `kafka-events` topic to set partitions to 3:
|
|
|
|
```
|
|
bin/kafka-topics.sh --alter --topic kafka-events --partitions 3 --bootstrap-server=localhost:9092
|
|
```
|
|
|
|
Show all topics and partitions in Kafka:
|
|
|
|
```
|
|
bin/kafka-topics.sh --bootstrap-server=localhost:9092 --describe
|
|
```
|
|
|
|
## Insert into TDengine
|
|
|
|
We can write data into TDengine via SQL or Schemaless. For more information, please refer to [Insert Using SQL](../sql-writing/) or [High Performance Writing](../high-volume/) or [Schemaless Writing](../../../reference/schemaless/).
|
|
|
|
## Examples
|
|
|
|
<Tabs defaultValue="Python" groupId="lang">
|
|
<TabItem label="Python" value="Python">
|
|
<PyKafka />
|
|
</TabItem>
|
|
</Tabs>
|
|
|