Featured Author

David Tucker
Solutions Architect, MapR

David is a solutions architect with MapR Technologies, specializing in cloud deployments and performance issues. He joined MapR in 2012 from HP's Enterprise Servers organization, where he had worked with strategic software partners for over 15 years.

Author's Posts

Posted on July 7, 2015 by David Tucker

I’m very pleased to announce the release of a custom EMR bootstrap action to deploy Apache Drill on a MapR cluster. MapR is the only commercial Hadoop distribution available for Amazon’s Elastic MapReduce service (EMR), and this addition allows EMR users to easily deploy and evaluate the powerful Drill query engine.

Posted on June 8, 2015 by David Tucker

Clush is an open source tool that allows you to execute commands in parallel across the nodes in your cluster. This blog describes how to install clush and use it to generate a report detailing the configuration of every node in your cluster (what MapR support classifies as a “cluster audit”).

Posted on April 23, 2014 by David Tucker

Like most commercial cloud platforms, Google Cloud offers a range of different storage options.  The most common options are persistent disk volumes attached to Virtual Machine instances or object store buckets accessed via the Google Storage APIs.  Until recently, disk volumes were the only supported storage for Hadoop deployments in the Google Cloud. That situation changed for the better with the release of the Google Cloud Storage Connector for Hadoop. 

Posted on February 13, 2013 by David Tucker
The MapR Job Metrics database is a powerful analytic tool for MapR deployments. One limitation, however, is that the MySQL instance hosting the data is potentially locked to a single node with only the local boot disk for storage. Storing MySQL data on the MapR Data Platform itself offers a simple solution to this problem, with the added advantage of preserving the metrics data in the event the database server goes off-line.

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