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.
Cloudera provides a pathway for sharing metadata from an Altus Director managed cluster with Cloudera Altus Data Engineering or Altus Data Warehouse clusters. This blog post outlines how to use Altus Director to set up the required infrastructure as well as configuring the CDH components to enable this functionality.
SDX for Cloudera Altus persists both Apache Hive metadata and Apache Sentry data access policies independently from clusters in SDX namespaces. In this way,
At Cloudera, we spend our time helping customers benefit from data. We help them with different types of data—structured, semi-structured, or raw unstructured. We also help them implement solutions for storing, tracing, securing, processing, enriching, analyzing, and visualizing it.
Over the past several years, we’ve observed that customers are increasingly working with their data in the cloud, and Microsoft’s Azure cloud service is a popular deployment option. Cloudera University is pleased to announce a free course,
In mid-2017, we were working with one of the world’s largest healthcare companies to put a new data application into production. The customer had grown through acquisition and in order to maintain compliance with the FDA, they needed to aggregate data in real-time from dozens of different divisions of the company. The consumers of this application, of course, did not care how we built the data pipeline. However, they cared greatly that if it broke,
Two new strains of malware–XBash and DemonBot–are targeting Apache Hadoop servers for Bitcoin mining and DDOS purposes. This malware is scanning the internet so vigorously for Hadoop clusters that an infection can occur within minutes of an insecure cluster being placed on the open internet. This blog post describes the mechanism this malware uses and offers specific actions to protect your Hadoop-based clusters.
A History of Hadoop Malware
Roughly two years ago there were a spate of attacks against the open source database solution MongoDB,