MinIO S3

MinIO is a High-Performance Object Storage released under GNU Affero General Public License v3.0. It is API compatible with the Amazon S3 cloud storage service. The consumer transport processes bucket objects using notification driven events using batch processing to reduce the memory footprint of the Joule JVM.

Driver details

io.minio:minio:8.5.4

Example configuration

minioConsumer:
  name: "marketdata-S3Consumer"

  connection:
    endpoint: "https://localhost"
    port: 9000
    credentials:
      access key: "XXXXXX"
      secret key: "YYYYYYYYYYYYYYY"

  bucket:
    bucketId: "marketdata"
    object name: "prices"
    versioning: ENABLED
    notifications: ["s3:ObjectCreated:*"]
    retries: 3

  deserializer:
    format: PARQUET
    projection: ["symbol","vol"]

  processed dir: ./processed
  processing rate: 5
  batchSize: 100000
  

The above example subscribes to bucket object creation events for a specific file name as a parquet file type. Data will be processed every 5 seconds using StreamEvent batches which are submitted to the processing pipeline. The processed file will be moved to a local processed directory on completion of the data ingestion.

Core Attributes

Available configuration parameters

Attribute	Description	Data Type	Required
name	Name of source stream	String
connection	Connection details	See Connection Attributes section
bucket	S3 bucket to ingest object data from	See Bucket Attributes section
deserializer	Deserialization configuration	See Deserialization Attributes section
processed dir	Directory to place processed files into. If setting is not provided files will be removed from temp store	String
processing rate	Rate of which the consumer will act upon notifications	Integer Default: 60 Seconds
batchSize	Number of records to be read in from file and passed to processing pipeline on a single cycle.	Long Default: 1024

Connection Attributes

Attribute	Description	Data Type	Required
endpoint	S3 service endpoint	String Default: https://localhost
port	Port the S3 service is hosted on	Integer Default:9000
url	Provide a fully qualified url endpoint, i.e. AWS, GCP, Azure urls. This is used over the endpoint setting if provided.	URL String
region	Region where the bucket is to be accessed	String
tls	Use a TLS connection	Boolean Default: false
credentials	IAM access credentials	See Credentials section

Credentials Attributes

For non-production use cases the access/secret keys can be used to prove data ingestion functionality. When migrating to a production environment implement a provider plugin using the provided JouleProviderPlugin interface, see basic example below.

Attribute	Description	Data Type	Required
access key	IAM user access key	String
secret key	IAM user secret key	String
provider plugin	Custom implementation of credentials ideal for production level deployments	JouleProviderPlugin implementation

JouleProviderPlugin Interface

public class JWTCredentialsProvider implements JouleProviderPlugin {
    @Override
    public Provider getProvider() {
        return null;
    }

    @Override
    public void initialize() throws CustomPluginException {
    }

    @Override
    public void validate() throws InvalidSpecificationException {
    }

    @Override
    public void setProperties(Properties properties) {
    }
}

Bucket Attributes

Attribute	Description	Data Type	Required
bucket Id	Bucket name	String
object name	Object name to listen for events too	String
versioning	Ability to use object versioning. Valid values are either ENABLED or SUSPENDED	ENUM
notifications	Type of bucket notifications to subscribe too. Currently only s3:ObjectCreated:* is supported	String[]

Deserialization Attributes

This topic provides configuration parameters available object deserialization process.

Attribute	Description	Data Type	Required
format	Object file format. Available formats: PARQUET, ORC, ARROW, CSV	Enum Default: PARQUET
projection	String array of fields to ingest. Consider using this for wide rows otherwise all columns are ingested	String[] Default: false

Deserializer example

deserializer:
   format: PARQUET
   projection: ["symbol","vol"]

Additional Resources

• Official MinIO documentation

• MinIO Docker image