Presented By O'Reilly and Cloudera
Make Data Work
31 May–1 June 2016: Training
1 June–3 June 2016: Conference
London, UK

Ask me anything: Hadoop operations

Mark Samson (Cloudera), Jayesh Seshadri (Cloudera), Wellington Chevreuil (Cloudera ), James Kinley (Cloudera)
14:55–15:35 Thursday, 2/06/2016
Ask Me Anything
Location: Expo Hall (AMA tables)

Mark Samson, Jayesh Seshadri, Wellington Chevreuil, and James Kinley, the instructors of the the full-day tutorial Apache Hadoop Operations for Production Systems, field a wide range of detailed questions about Hadoop, from debugging and tuning across different layers (app, Hadoop, JVM, kernel, networking, cluster management, etc.) to tools and subsystems to keep your Hadoop clusters always up, running, and secure.

Photo of Mark Samson

Mark Samson


Mark Samson is a principal systems engineer at Cloudera, helping customers solve their big data problems using enterprise data hubs based on Hadoop. Mark has 17 years’ experience working with big data and information management software in technical sales, service delivery, and support roles.

Photo of Jayesh Seshadri

Jayesh Seshadri


Jayesh Seshadri is currently a technical lead for Cloudera Manager and Cloudera Backup and Disaster Recovery. Previously, Jayesh designed highly scalable cloud management systems at VeloCloud Networks and led several engineering initiatives for vCenter at VMware. Jayesh has a master’s degree in computer sciences from the University of Texas at Austin.

Photo of Wellington Chevreuil

Wellington Chevreuil


Wellington Chevreuil has more than 12 years’ experience in the IT industry, mainly with SW development and support, and has been dealing with Hadoop and big data since 2011. Wellington currently works at Cloudera’s customer operations organization, helping companies from different sectors succeed with their big data deployments.

James Kinley


James Kinley is a principal solutions architect at Cloudera and has been involved with Hadoop since early 2010. James joined Cloudera from the UK defense industry, where he specialized in cybersecurity. James now works with Cloudera’s customers across EMEA to help them succeed in their Hadoop endeavors.