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October 23-26, 2017 - Prague, Czech Republic
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Wednesday, October 25 • 11:15 - 11:55
No One Puts the JVM in a Container - Joerg Schad & Johannes Unterstein, Mesosphere

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The current craze of Docker has everyone sticking their processes inside a container... but do you really understand cgroups and how they work? Do you understand the difference between CPU Sets and CPU Shares?
Spark is a Scala application that lives inside a Java Runtime, do you understand the consequence of what impact the cgroup constraints have on the JRE?
This talk starts with a deep understand of Java's memory management and GC characteristics and how JRE characteristics change based on core count.
We will continue the talk looking at containers and how resource isolation works. The session will detail specifically the difference between CPU sets and CPU shares and memory management.
The session will close with a deep understanding of the consequences of running the JRE in a CPU share environment and the potential for pseudo-random behavior of running in a heterogeneous datacenter.
Speakers
avatar for Jörg Schad

Jörg Schad

Head of Machine Learning, ArangoDB
Jörg Schad is Head of Machine Learning at ArangoDB. In a previous life, he worked on built machine learning pipelines in healthcare, distributed systems at Mesosphere, and in-memory databases, conducted research in the Hadoop and Cloud area. He’s a frequent speaker at meetups... Read More →
avatar for Johannes Unterstein

Johannes Unterstein

Graphs, containers and fun, Neo4j
Johannes is doing things with containers and graphs, check it out: https://neo4j.com/cloud/

Java in Containers pdf
Wednesday October 25, 2017 11:15 - 11:55
Karlin I
  ContainerCon Tracks

Attendees (131)