使用AWS S3 Glacier Select实现高效的文件检索
AWS S3 Glacier提供了一种可靠的、安全的、成本效益高的云存储解决方案,但是文件检索却是一件棘手的事情。为此,AWS推出了S3 Glacier Select,使用这个功能可在S3 Glacier中存储和检索特定数据,大大提高了效率。
示例代码:
import boto3 import io
s3 = boto3.client('s3')
s3.upload_file( '/path/to/local/file.txt', 'my_glacier_vault', 'file.txt', ExtraArgs={ 'StorageClass': 'GLACIER', 'Metadata': { 'file-description': 'This is a sample file.' } } )
response = s3.select_object_content( Bucket='my_glacier_vault', Key='file.txt', Expression="select s from S3Object s where s='sample'", ExpressionType='SQL', InputSerialization={'json': {}}, OutputSerialization={'json': {}} )
for event in response['Payload']: if 'Records' in event: records = event['Records']['Payload'].decode('utf-8') print(records)