July 2017
Intermediate to advanced
796 pages
18h 55m
English
Content preview from Scala and Spark for Big Data Analytics
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Hadoop YARN
As already discussed, the Apache Hadoop YARN has to main components: a scheduler and an applications manager, as shown in the following figure:
Figure 16: Apache Hadoop YARN architecture (blue: system components; yellow and pink: two applications running)
Now that using the scheduler and the applications manager, the following two deploy modes can be configured to launch your Spark jobs on a YARN-based cluster:
- Cluster mode: In the cluster mode, the Spark driver works within the master process of an application managed by YARN's application manager. Even the client can be terminated or disconnected away when the application has ...
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