Page History

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• Stack Advisor interface
• Default Stack Advisor implementation - for all stacks
• HDP (2.0.6) Default Stack Advisor implementation
• YARN container size calculated
• Recommended configurations - HDFS, YARN, MapReduce2, HBase (HDP-2.0.6), HBase (HDP-2.3)
• Delete HBase Bucket Cache configs on smaller machines
• Specify maximum value for Tez config

Properties

Similar to stack configurations, most properties are defined at the service level, however there are global properties which can be defined at the stack-version level affecting across all services.
Some examples are: stack-selector and conf-selector specific names or what stack versions certain stack features are supported by. Most of these properties were introduced in Ambari 2.4 version in the effort of parameterize stack information and facilitate the reuse of common-services code by other distributions.

Such properties can be defined in .json format in the properties folder of the stack. 

Widgets

At the stack-version level one can contribute heatmap entries to the main dashboard of the cluster.
Generally these heatmaps would be ones which apply to all services - like host level heatmaps.
Example: HDP-2.0.6 contributes host level heatmaps 

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