Author: Niel Dunnage

Feed: Cloudera Blog. Author: Niel Dunnage. Posted in Technical | January 21, 2022 9 min read This blog will summarise the security architecture of a CDP Private Cloud Base cluster. The architecture reflects the four pillars of security engineering best practice, Perimeter, Data, Access and Visibility. The release of CDP Private Cloud Base has seen a number of significant enhancements to the security architecture including: Apache Ranger for security policy management Updated Ranger Key Management service Before diving into the technologies it is worth becoming familiar with the key security principle of a layered approach that facilitates defense in depth ... Read More

Feed: Cloudera Blog. Author: Niel Dunnage. Posted in Technical | October 08, 2021 13 min read Introduction Apache Impala is a massively parallel in-memory SQL engine supported by Cloudera designed for Analytics and ad hoc queries against data stored in Apache Hive, Apache HBase and Apache Kudu tables. Supporting powerful queries and high levels of concurrency Impala can use significant amounts of cluster resources. In multi-tenant environments this can inadvertently impact adjacent services such as YARN, HBase, and even HDFS. Mostly these adjacent services can be isolated by enabling static services pools which use Linux cgroups to fix CPU and ... Read More

Feed: Cloudera Blog. Author: Niel Dunnage. Posted in Technical | July 15, 2021 6 min read The release of Cloudera Data Platform (CDP) Private Cloud Base edition provides customers with a next generation hybrid cloud architecture. This blog post provides an overview of best practice for the design and deployment of clusters incorporating hardware and operating system configuration, along with guidance for networking and security as well as integration with existing enterprise infrastructure. Private Cloud Base Overview CDP Private Cloud Base is an on-premise version of Cloudera Data Platform that combines the best of Cloudera Enterprise Data Hub and Hortonworks ... Read More