Odnan Ref Sanchez

13 papers A 1B 1Journal 4Unranked 6
YearRankTypeTitle / Venue / Authors
2023 J jnl
Softw. Syst. Model.
Ragnhild Halvorsrud, Odnan Ref Sanchez, Costas Boletsis, Marita Skjuve
2021 B conf
NetSoft
Odnan Ref Sanchez, Matteo Repetto, Alessandro Carrega, Raffaele Bolla
2021 conf
ICC
Odnan Ref Sanchez, Matteo Repetto, Alessandro Carrega, Raffaele Bolla, Jane Frances Pajo
2020 J jnl
User Model. User Adapt. Interact.
Odnan Ref Sanchez, Ilaria Torre, Yangyang He, Bart P. Knijnenburg
2020 J jnl
Future Gener. Comput. Syst.
Odnan Ref Sanchez, Ilaria Torre, Bart P. Knijnenburg
2019
Odnan Ref Sanchez
2019 conf
Big-DAMA@CoNEXT
Odnan Ref Sanchez, Simone Ferlin, Cristel Pelsser, Randy Bush
2018 conf
NFV-SDN
Roberto Bruschi, Franco Davoli, Chiara Lombardo, Odnan Ref Sanchez
2018 J jnl
Pers. Ubiquitous Comput.
Ilaria Torre, Odnan Ref Sanchez, Frosina Koceva, Giovanni Adorni
2017 conf
ICC
Raffaele Bolla, Roberto Bruschi, Franco Davoli, Chiara Lombardo, Jane Frances Pajo, Odnan Ref Sanchez
2016 conf
ICITST
Ilaria Torre, Frosina Koceva, Odnan Ref Sanchez, Giovanni Adorni
2016 A conf
MMSys
Valentin Burger, Jane Frances Pajo, Odnan Ref Sanchez, Michael Seufert, Christian Schwartz, Florian Wamser, Franco Davoli, Phuoc Tran-Gia
2016 conf
SITIS
Ilaria Torre, Giovanni Adorni, Frosina Koceva, Odnan Ref Sanchez
s3-storage/s3_test.py
← Index s3-storage/s3_test.py python
#!/usr/bin/env python3
"""
Simple script to test S3 connectivity and download.
Usage: python s3_test.py
"""

import os
import time
import tempfile
from minio import Minio
from minio.error import S3Error
from dotenv import load_dotenv

# Load environment variables
load_dotenv()

def get_minio_client():
    """Create and return a Minio client using credentials from .env file"""
    endpoint = os.getenv("S3_ENDPOINT")
    access_key = os.getenv("S3_ACCESS_KEY")
    secret_key = os.getenv("S3_SECRET_KEY")
    secure = True 
    
    print(f"Connecting to S3 endpoint: {endpoint} (secure={secure})")
    
    return Minio(
        endpoint=endpoint,
        access_key=access_key,
        secret_key=secret_key,
        secure=secure
    )

def test_connection():
    """Test basic connectivity to S3"""
    try:
        client = get_minio_client()
        
        # Try to list buckets as a basic connectivity test
        buckets = client.list_buckets()
        print(f"Successfully connected to S3. Found {len(buckets)} buckets:")
        for bucket in buckets:
            print(f"  - {bucket.name}")
        
        return client
    except Exception as e:
        print(f"Failed to connect to S3: {e}")
        return None

def test_bucket_access(client, bucket_name):
    """Test access to a specific bucket"""
    try:
        exists = client.bucket_exists(bucket_name)
        if exists:
            print(f"Bucket '{bucket_name}' exists and is accessible")
            
            # List a few objects to verify access
            count = 0
            objects = []
            for obj in client.list_objects(bucket_name, recursive=True):
                print(f"  - {obj.object_name} ({obj.size} bytes)")
                objects.append(obj)
                count += 1
                if count >= 5:
                    break
            
            print(f"Found at least {len(objects)} objects in bucket")
            return objects
        else:
            print(f"Bucket '{bucket_name}' does not exist or is not accessible")
            return []
    except Exception as e:
        print(f"Error accessing bucket '{bucket_name}': {e}")
        return []

def test_download(client, bucket_name, object_name):
    """Test downloading a specific object"""
    try:
        print(f"Attempting to download: {object_name}")
        start_time = time.time()
        
        # Create a temporary file to store the downloaded object
        with tempfile.NamedTemporaryFile(delete=False) as temp_file:
            temp_path = temp_file.name
        
        # Download the object
        client.fget_object(bucket_name, object_name, temp_path)
        
        # Check if the file was downloaded successfully
        file_size = os.path.getsize(temp_path)
        elapsed_time = time.time() - start_time
        
        print(f"Download successful: {file_size} bytes in {elapsed_time:.2f} seconds")
        print(f"Average download speed: {file_size/elapsed_time/1024:.2f} KB/s")
        
        # Clean up
        os.unlink(temp_path)
        return True
    except S3Error as e:
        print(f"S3 Error during download: {e}")
        return False
    except Exception as e:
        print(f"Error downloading object: {e}")
        return False

def main():
    """Main function to run all tests"""
    print("=== S3 Connectivity Test ===")
    
    # Test basic connectivity
    client = test_connection()
    if not client:
        return
    
    # Get bucket name from environment variable
    bucket_name = "redb"
    print(f"\n=== Testing Access to Bucket: {bucket_name} ===")
    objects = test_bucket_access(client, bucket_name)
    
    if objects:
        # Test downloading the first object
        first_object = objects[0].object_name
        print(f"\n=== Testing Download of Object: {first_object} ===")
        test_download(client, bucket_name, first_object)
        
        # If the first one worked, let's try a specific file from the error log
        print(f"\n=== Testing Download of Specific Object ===")
        specific_object = "00/06/00062073114defac39cb7ab9cb99a0b77c535a09a241c60d47ddd0b6431629f1.zip"
        test_download(client, bucket_name, specific_object)

if __name__ == "__main__":
    main()