https://community.cloudera.com/t5/Support-Questions/Cluster-creation-failed-on-Cloudbreak-hosted-on-AWS/m-p/242427#M204228 <P>Hi,</P><P>I followed the exact steps to launch Cloudbreak (v2.7.0) on AWS :<BR /><BR /><A href="https://hortonworks.github.io/cloudbreak-documentation/latest/aws-launch/index.html" target="_blank">https://hortonworks.github.io/cloudbreak-documentation/latest/aws-launch/index.html</A><BR /><BR />As a pre-requisite, below two roles were created (based on AssumeRole and cb-policy json files as mentioned):<BR /><BR />CloudbreakRole: Allows Cloudbreak to assume other IAM roles - specifically the CredentialRole.<BR />CredentialRole: Allows Cloudbreak to create AWS resources required for clusters.<BR /><BR />(Referring to <A href="https://hortonworks.github.io/cloudbreak-documentation/latest/aws-pre/index.html)" target="_blank">https://hortonworks.github.io/cloudbreak-documentation/latest/aws-pre/index.html)</A><BR /><BR />I could successfully launch Cloudbreak and create a Cloudbreak credential. <BR /><BR />I used "Role based" authentication to create cluster. Used platform as HDP 2.6 and blueprint: "EDW-ETL: Apache Hive, Apache Spark 2" with 2 nodes. <BR />However, cluster creation is failing with the below errors:<BR /><BR /><BR />java.util.concurrent.ExecutionException: com.sequenceiq.cloudbreak.cloud.exception.CloudConnectorException: AWS CloudFormation stack reached an error state: CREATE_FAILED reason: API: autoscaling:CreateAutoScalingGroup The default Service-Linked Role for Auto Scaling could not be created. com.amazonaws.services.identitymanagement.model.AmazonIdentityManagementException: User: arn:aws:sts::&lt;account id&gt;:assumed-role/CredentialRole/hadoop-provisioning is not authorized to perform: iam:CreateServiceLinkedRole on resource: arn:aws:iam::&lt;account id&gt;:role/aws-service-role/autoscaling.amazonaws.com/AWSServiceRoleForAutoScaling (Service: AmazonIdentityManagement; Status Code: 403; Error Code: AccessDenied; Request ID: cc25dd31-1a50-11e9-bef1-a990dfdb8f39)<BR /><BR /><BR />Can you please help?</P> Sat, 19 Jan 2019 02:47:18 GMT pushpak_nandi 2019-01-19T02:47:18Z