AWS Database Migration Service vs Talend Open Studio comparison

AWS Database Migration Service, also known as AWS DMS, is a cloud service that facilitates the migration of relational databases, NoSQL databases, data warehouses, and other types of data stores. The product can be used to migrate users' data into the AWS Cloud or between combinations of on-premises and cloud setups. The solution allows migration between a wide variety of sources and target endpoints; the only requirement is that one of the endpoints has to be an AWS service. AWS DMS cannot be used to migrate from an on-premises database to another on-premises database.

AWS Database Migration Service allows users to perform one-time migrations, as well as replications of ongoing changes to keep sources and targets in sync. Organizations can utilize the AWS Schema Conversion Tool to translate their database schema to a new platform and then use AWS DMS to migrate the data. The product offers cost efficiency as a part of the AWS Cloud, as well as speed to market, flexibility, and security.

The main use cases of AWS Database Migration Service include:

• Migrating from legacy or on-premises databases to managed cloud services through a simplified migration process.
  
  
• Reliable replication of backup files to minimize downtime and data loss.
  
  
• Improvement of integration through building of data lakes and performing real-time processing on change data from users' data stores.

AWS Database Migration Service Components

AWS Database Migration Service consists of various components which function together to achieve users’ data migration. A migration on AWS DMS is structured in three levels: a replication instance, source and target endpoints, and a replication task. The components include the following actions:

• Replication instance: AWS Database Migration Service provides users with a variety of replication instances, allowing them to select the optimal configuration for their use case. Depending on the instance class an organization selects, their replication instance provides a different amount of data storage.
  
  
• Endpoint: AWS DMS uses an endpoint to access users' source or target data stores. The connection information is different and depends on the specific data store, but it usually consists of the following information: endpoint type, engine type, server name, port, encryption, and credentials. This information can easily be managed through the AWS DMS console.
  
  
• Replication tasks: AWS Database Migration Service replication tasks can be used to move a set of data from the source endpoint to the target endpoint. The creation of a replication task is the last required step before starting a migration. Each replication task requires the following settings to be set: replication instance, source endpoint, target endpoint, and migration type options.
  
  
• Ongoing replication or change data capture (CDC): AWS DMS also has the capacity to capture ongoing changes to the source that is stored while users migrate their data to a target.
  
  
• Schema and code migration: The product requires assistance from tools such as MySQL Workbench, pgAdmin III, and Oracle SQL Developer to perform schema or code conversion, as it cannot do it on its own.

AWS Database Migration Service Benefits

AWS Database Migration Service offers its users a wide range of benefits. Among them are the following:

• The solution ensures minimal downtime, as it continuously replicates the changes to the user’s source database during migration.
  
  
• AWS DMS provides users with flexibility, as it supports many commonly used databases, including commercial and open-source ones.
  
  
• The product is user friendly, as it offers an easy set of tasks in the AWS Management Console.
  
  
• Users of Aurora, Redshift, DocumentDB, and DynamoDB can benefit from the free use of AWS DMS.
  
  
• AWS Database Migration Service is very reliable because it is a self-healing service that automatically restarts in cases of interruptions.
  
  
• The product supports both homogenous migrations and heterogenous migrations.
  
  
• AWS DMS accelerates business growth, as it scales businesses at an affordable price.

Reviews from Real Users

Vishal S., an infrastructure lead at a computer software company, likes AWS Database Migration Service because it is easy to use and set up.

Vinod K., a data analyst at AIMLEAP, describes AWS DMS as an easy solution to save and extract data.

Talend Open Studio is a free, open source ETL tool for data integration and Big Data. The solution enables you to extract diverse datasets and normalize and transform them into a consistent format which can be loaded into a number of third-party databases and applications.

Talend Open Studio Features

Talend Open Studio has many valuable key features. Some of the most useful ones include:

• Automatic identification of data types and potential errors
• tMap module
• Graphical conversion tools
• Charts
• Database SCD Tools
• Business intelligence formats (Jasper, OLAP, SPSS, Splunk)
• ETL and ELT support
• Eclipse-based development tooling
• Versioning
• Large library of connectors
• Data flow orchestration
• File management without scripting
• Data transformations

Talend Open Studio Benefits

There are several benefits to implementing Talend Open Studio. Some of the biggest advantages the solution offers include:

• Reduces the time taken to develop the integration.
• Provides a wide selection of source and target connectors.
• Monitor and manage problematic deployments with ease.
• Allows developers to have the lowest cost of ownership for any solution.
• Improves collaboration between different teams who need access to data.
• Automated data integration process synchronizes the data and eases real time and periodic reporting, which would be time-consuming if done manually.
• Achieve better data quality because data matures and improves over time.

Reviews from Real Users

Below are some reviews and helpful feedback written by PeerSpot users currently using the Talend Open Studio solution.

Elio B., Data Integration Specialist/CTO at Asset messages, says, "The solution has a good balance between automated items and the ability for a developer to integrate and extend what he needs. Other competing tools do not offer the same grade of flexibility when you need to go beyond what is provided by the tool. Talend, on the other hand, allows you to expand very easily."

A Practice Head, Analytics at a tech services company mentions, “The data integration aspect of the solution is excellent. The product's data preparation features are very good. There's very useful data stewardship within the product. From a technical standpoint, the solution itself is pretty good. There are very good pre-built connectors in Talend, which is good for many clients or businesses, as, in most cases, companies are dealing with multiple data sources from multiple technologies. That is where a tool like Talend is extremely helpful.”

Prerna T., Senior System Executive at a tech services company, comments, “The best thing I have found with Talend Open Studio is their major support for the lookups. With Salesforce, when we want to relate our child objects to their parent object, we need to create them via IDs. Then the upsert operation, which will allow you to relate a child object to the event, will have an external ID. That is the best thing which keeps it very sorted. I like that.”

An Implementation Specialist, Individual Contributor at a computer software company, states, “I can connect with different databases such as Oracle Database or SQL Server. It allows you to extract the data from one database to another. I can structure the data by filtering and mapping the fields.” He also adds, “It is very user-friendly. You need to know the basics of SQL development or SQL queries, and you can use this tool.”

PeerSpot user Badrakh V., Information System Architect at Astvision, explains, "The most valuable features are the ETL tools."