Tag Archives: performance

Transparent Hierarchical Storage Management with Apache Kudu and Impala

Categories: CDH Impala Kudu Parquet

When picking a storage option for an application it is common to pick a single storage option which has the most applicable features to your use case. For mutability and real-time analytics workloads you may want to use Apache Kudu, but for massive scalability at a low cost you may want to use HDFS. For that reason, there is a need for a solution that allows you to leverage the best features of multiple storage options.

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Using Native Math Libraries to Accelerate Spark Machine Learning Applications

Categories: AI and Machine Learning CDH Performance Spark

[Editor’s note: The original version of this article was published as part of our Guru How-To series for Data Science. Be sure to also check out the series for Cloudera Data Warehouse.]

 

Spark ML is one of the dominant frameworks for many major machine learning algorithms, such as the Alternating Least Squares (ALS) algorithm for recommendation systems, the Principal Component Analysis algorithm, and the Random Forest algorithm.

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Faster Swarms of Data : Accelerating Hive Queries with Parquet Vectorization

Categories: CDH Hive Parquet Performance

Background

Apache Hive is a widely adopted data warehouse engine that runs on Apache Hadoop. Features that improve Hive performance can significantly improve the overall utilization of resources on the cluster. Hive processes data using a chain of operators within the Hive execution engine. These operators are scheduled in the various tasks (for example, MapTask, ReduceTask, or SparkTask) of the query execution plan. Traditionally, these operators are designed to process one row at a time.

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Assessment of Apache Impala Performance using Cloudera Manager Metrics – Part 1 of 3

Categories: CDH Cloudera Manager Impala Performance

For a user-facing system like Apache Impala, bad performance and downtime can have serious negative impacts on your business. Given the complexity of the system and all the moving parts, troubleshooting can be time-consuming and overwhelming.

In this blog post series, we are going to show how the charts and metrics on Cloudera Manager (CM) can help troubleshoot Impala performance issues. They can also help to monitor the system to predict and prevent future outages.

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Evaluating Partner Platforms

Categories: CDH Hardware How-to Performance

As a member of Cloudera’s Partner Engineering team, I evaluate hardware and cloud computing platforms offered by commercial partners who want to certify their products for use with Cloudera software. One of my primary goals is to make sure that these platforms provide a stable and well-performing base upon which our products will run, a state of operation that a wide variety of customers performing an even wider variety of tasks can appreciate.

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