add variables with defaults to AWS EMR module#81
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Ken-Michalak wants to merge 3 commits into
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Without ssh access, there's no way to clean up Spark's job history, and the cleaner is disabled by default. This enables the cleaner with the default values and allows modifications. https://repost.aws/knowledge-center/core-node-emr-cluster-disk-space https://spark.apache.org/docs/latest/monitoring.html#spark-history-server-configuration-options
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This allows for some additional configuration, but defaults to the current hard-coded or empty values. The important one for us is the
key_nameso that we can do some troubleshooting.Adding
unhealthy_node_replacementwould be a breaking change for v4 that the example uses, so I just commented that out until it's been updated.