【发布时间】:2018-05-11 20:49:22
【问题描述】:
我是 Avro 的新手。我正在尝试解析一个包含一个字符串值和一个 int 值的简单 CSV 文件,但出现错误:avro.io.AvroTypeException: The datum is not an example of schema
我使用的架构是:
{"namespace": "paymenttransaction",
"type": "record",
"name": "Payment",
"fields": [
{"name": "TransactionId", "type": "string"},
{"name": "Id", "type": "int"}
]
}
CSV 文件包含以下内容:
TransactionId,Id
2018040101000222749,1
我为生产者运行的 Python 代码是:
from confluent_kafka import avro
from confluent_kafka.avro import AvroProducer
import csv
value_schema = avro.load('/home/daniela/avro/example.avsc')
AvroProducerConf = {'bootstrap.servers': 'localhost:9092',
'schema.registry.url': 'http://localhost:8081',
}
avroProducer = AvroProducer(AvroProducerConf, default_value_schema=value_schema)
with open('/home/usertest/avro/data/paymenttransactions.csv') as file:
reader = csv.DictReader(file, delimiter=",")
for row in reader:
avroProducer.produce(topic='test', value=row)
print(row)
avroProducer.flush()
我做错了什么?
【问题讨论】: