python-超出Azure函数内存

我用python编写了一个Azure函数来解压文件并将其上传回blob存储。它适用于小文件，但在尝试gb文件时失败。

我知道问题是文件太大，无法放入内存，需要流式传输。关于如何解压缩和上传这个文件有什么建议吗

我的代码：

import azure.functions as func
import json
import logging
import os
from zipfile import ZipFile
from azure.storage.blob import BlobServiceClient, ContainerClient, blob

def main(mytimer: func.TimerRequest) -> None:

    source_conn_str = xxx
    source_container = xxx
    blob_service_client_origin = BlobServiceClient.from_connection_string(source_conn_str)
    source_fileName = xxx
    blob_to_copy = blob_service_client_origin.get_blob_client(container=source_container, blob=source_fileName)
    
    # Step 2. Download zip file to local tmp directory 
    os.chdir('/tmp/')
    print("Downloading file")
    blob_data = blob_to_copy.download_blob()
    data = blob_data.readall()
    print("Download complete")
    
    # Step 3. Save zip file to temp directory
    local_filepath = xxx
    with open(local_filepath, "wb") as file:
        file.write(data)
    
    # Step 3. Unzip file to local tmp directory 
    with ZipFile(local_filepath, 'r') as zipObj:
        zipObj.extractall()
    
    
    # Step 4. Upload file to storage account 
    dest_conn_str = xxx
    blob_service_client = BlobServiceClient.from_connection_string(dest_conn_str)
    container_name = xxx
    
    #Set the local file name 
    local_file_name = xxx
    blob_client = blob_service_client.get_blob_client(container=container_name, blob=local_file_name)

    # Upload the file to blob storage
    print('Uploading file')
    with open(local_file_name, "rb") as data:
        blob_client.upload_blob(data, overwrite = True)
    print('File Upload complete')`enter code here`

当我运行Azure函数时，它会返回：Exception message: python exited with code 137.这意味着它已经没有记忆了。非常感谢您的任何建议。