Join discussions on data engineering best practices, architectures, and optimization strategies within the Databricks Community. Exchange insights and solutions with fellow data engineers.
Hi @Phani1, Migrating data from on-premises Hadoop to Databricks as Delta files involves several key steps.
Letโs break it down:
Administration:
In Hadoop, youโre dealing with a monolithic distributed storage and computing platform. It consists of multiple nodes with their own storage, CPU, and memory. Resource management is done via YARN, and thereโs a Hive metastore for structured information.
Use tools like Apache Sqoop or DistCp to transfer data from HDFS (Hadoop Distributed File System) to Databricks. Sqoop is specifically designed for moving data between Hadoop and relational databases, while DistCp is more general-purpose.
Leverage Databricksโ powerful data processing capabilities. Databricks Notebooks allow you to write and execute code in languages like Python, Scala, or SQL.
Databricks supports SQL queries directly on Delta tables. You can use Databricks Notebooks or connect external BI tools (e.g., Tableau, Power BI) to query your data.
Join a Regional User Group to connect with local Databricks users. Events will be happening in your city, and you wonโt want to miss the chance to attend and share knowledge.
If there isnโt a group near you, start one and help create a community that brings people together.