Bootstrap Timeout during cluster start on AWS cloud

[Manimkm08]

Sometimes am getting the below error when the cluster is started. Have attached the system log of the below mentioned instance from AWS. In recent days am getting this error for very frequently. Have seen same error is reported earlier and it marked as resolved by the team.

Error:

{

"reason": {

"code": "BOOTSTRAP_TIMEOUT",

"parameters": {

"databricks_error_message": "[id: InstanceId(i-0a2c7c58a6ffcb69f), status: INSTANCE_INITIALIZING, workerEnvId:WorkerEnvId(workerenv-1009608583880808-17b7de8b-3026-44d9-ad08-2cc4776d9067), lastStatusChangeTime: 1667548831248, groupIdOpt Some(-8704258090982298271),requestIdOpt Some(1104-080005-ioy9s8op-62e7ec83-2289-45b8-8),version 2] with threshold 700 seconds timed out after 700519 milliseconds. Please check network connectivity from the data plane to the control plane.",

"instance_id": "i-0a2c7c58a6ffcb69f"

}

}

}

[karthik_p]

@Mani Srini​ Is this error you are seeing is new environment that was configured or it's working. any changes happened in cloud vpc end. looks data plane to control plane connectivity issues, please make sure all required ports are opened to communicate between data bricks control plane and customer data plane

[Manimkm08]

@karthik p​ @Kaniz Fatma​ Didn't see the error on the past three days and didn't do any changes as well on my end. Am wondering why it's happened earlier and not in recent days. Can you please guide me what are the required ports need to be opened to avoid this issue in future.

[Manimkm08]

@Kaniz Fatma​ @karthik p​  Since morning, am facing the issue again. Seems the issue is intermittent and it fails the pipeline in mid of the ETL process. Couldn't able to get the exact root cause of the issue. Can someone provide what would be the workaround or solution for it.

[karthik_p]

@Mani Srini​ mostly this kind issue, you can clear by validating security groups and routine table config for VPC that has been used for Databricks Instance. please validate if all pre-requisites in this has been met. mainly please check sunnet route table config and security groups Customer-managed VPC | Databricks on AWS