Explain how Hadoop cluster hardware planning and provisioning is done?
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Which are the three modes in which hadoop can be run?
Give me examples of unstructured data?
What is the role of the secondary namenode?
what is next step after mapper or maptask?
What type of data we should put in distributed cache? When to put the data in dc? How much volume we should put in?
How can native libraries be included in yarn jobs?
Name the files which are used by the startup and shutdown commands?
What does the high availability of a name-node means?
What does hadoop-metrics.properties file do?
How job tracker schedules an assignment?
What is the role of the namenode?
Clarify how job tracker schedules an assignment?
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