AWS Glue作业可以使用适当的ETL(提取、转换、加载)过程来处理新的数据。以下是处理新进数据的最佳实践:
import boto3
s3 = boto3.client('s3')
def lambda_handler(event, context):
# retrieve new data from source
new_data = get_new_data()
# write new data to S3 bucket
s3.put_object(Bucket='mybucket', Key='new_data.csv', Body=new_data.encode('utf-8'))
import sys
from awsglue.transforms import *
from awsglue.utils import getResolvedOptions
from awsglue.dynamicframe import DynamicFrame
args = getResolvedOptions(sys.argv, ['JOB_NAME'])
glueContext = GlueContext(SparkContext.getOrCreate())
# create a dynamic frame from new data
new_data_frame = glueContext.create_dynamic_frame.from_options(
connection_type='s3',
connection_options={
'path': 's3://mybucket/new_data.csv'
},
format='csv',
format_options={
'header': True
}
)
# transform the data using appropriate transforms
...
# write the transformed data to target destination
...
通过使用Lambda函数将新的数据写入S3并使用AWS Glue创建ETL作业,可以在新的数据到达时自动地将其处理和加载到目标数据位置。