python操作flink读取kafka写到kudu
时间: 2023-09-05 22:09:58 浏览: 171
python读取Kafka实例
以下是使用Python操作Flink读取Kafka并将数据写入Kudu的步骤:
1. 安装必要的库
首先,需要安装Python的Kafka和Kudu库。可以使用pip命令来安装:
```
pip install kafka-python
pip install kudu-python
```
2. 编写Python代码
接下来,编写Python代码连接到Kafka和Kudu,并将数据流从Kafka读取并写入Kudu。以下是一个简单的示例代码:
```python
from pykudu import *
from kafka import KafkaConsumer
# Connect to Kudu
client = PartialRowBatcher('kudu-master:7051')
# Connect to Kafka
consumer = KafkaConsumer('my-topic', bootstrap_servers=['kafka-broker:9092'])
# Read data from Kafka and write to Kudu
for message in consumer:
data = message.value.decode('utf-8')
row = client.new_row()
row['id'] = message.key.decode('utf-8')
row['data'] = data
client.add(row)
if client.count >= 1000:
client.flush()
# Flush any remaining rows
client.flush()
```
3. 运行Python代码
最后,运行Python代码将数据从Kafka读取并写入Kudu:
```
python myscript.py
```
这将启动Python脚本并开始读取Kafka消息并将其写入Kudu。请注意,Kafka和Kudu的主机名和端口应根据您的实际配置进行更改。
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