July 2017
Intermediate to advanced
796 pages
18h 55m
English
Content preview from Scala and Spark for Big Data Analytics
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Stages
The Stages tab in Spark UI shows the current status of all stages of all jobs in a Spark application, including two optional pages for the tasks and statistics for a stage and pool details. Note that this information is available only when the application works in a fair scheduling mode. You should be able to access the Stages tab at http://localhost:4040/stages. Note that when there are no jobs submitted, the tab shows nothing but the title. The Stages tab shows the stages in a Spark application. The following stages can be seen in this tab:
- Active Stages
- Pending Stages
- Completed Stages
For example, when you submit a Spark job locally, you should be able to see the following status:
Figure 7: The stages for all jobs in the Spark ...
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