Apache Kudu

Kevin Feasel

2016-09-27

Hadoop

Greg Rahn discusses Apache Kudu:

At a high level, Kudu is a new storage manager that enables durable single-record inserts, updates, and deletes, as well as fast and efficient columnar scans due to its in-memory row format and on-disk columnar format.  This architecture makes Kudu very attractive for data that arrives as a single record at a time or that may need to be modified at a later time.

Today, many users try to solve this challenge via a Lambda architecture, which presents inherent challenges by requiring different code bases and storage for the necessary batch and real-time components. Using Kudu and Impala together completely avoids this problematic complexity by easily and immediately making data inserted into Kudu available for querying and analytics via Impala. (For more technical details on how Impala and Kudu work together for analytical workloads, see this post.)

I’d jokingly say “Someday, somebody’s going to reinvent the relational database inside of Hadoop.”  But it seems like that’s less of a joke than a medium-term prediction.

Related Posts

Hooking SQL Server to Kafka

Niels Berglund has an interesting scenario for us: We see how the procedure in Code Snippet 2 takes relevant gameplay details and inserts them into the dbo.tb_GamePlay table. In our scenario, we want to stream the individual gameplay events, but we cannot alter the services which generate the gameplay. We instead decide to generate the event from the database […]

Read More

Notebooks in Azure Databricks

Brad Llewellyn takes us through Azure Databricks notebooks: Azure Databricks Notebooks support four programming languages, Python, Scala, SQL and R.  However, selecting a language in this drop-down doesn’t limit us to only using that language.  Instead, it makes the default language of the notebook.  Every code block in the notebook is run independently and we […]

Read More

Categories

September 2016
MTWTFSS
« Aug Oct »
 1234
567891011
12131415161718
19202122232425
2627282930