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aws emr create-cluster configurations format vs emr dashboard #1502
The options passed via the json file specified with the --configurations option need to be one of:
Classification, Configurations, Properties
consistent with the capitalization above. This is true of versions 1.7.47 and 1.8.3.
However, if you try to launch the same cluster via the EMR dashboard you will not be able to launch unless the words are lower cased.
This is using EMR 4.0.0 and attempting to configure a spark cluster with the following options:
In other words:
The two seem inconsistent.