Sometimes, clusters fail or are slow to process data. The following sections list common cluster issues. Errors include bootstrap failures and validation errors, with suggestions on how to resolve them.
Find a missing cluster
If your cluster is missing from the console list or ListClusters API,
check the following:
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Confirm that the cluster age from time of completion is less than two months. Amazon EMR preserves metadata information for completed clusters for two months at no charge. You can't delete completed clusters from the console — instead, Amazon EMR purges completed clusters automatically after two months.
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Confirm that you have role permissions to view the cluster.
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Confirm that you are viewing the same AWS Region where the cluster resides.
