Unanswered Questions tagged with Migration & Transfer
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Aurora Postgres Sequences Skipping Values
I am seeing my Aurora Postgres sequence values skip by 33 on a semi-consistent basis. I am aware of a thread from the PG mailing list saying that when PG recovers it can cause a sequence skip. Also if a large transaction rolls back then any sequence values updated during that transaction will remain at their new value and won't be rolled back. I get that - its the whole point of a sequence. But in my case nothing is happening and boom tomorrow morning the sequences have skipped ahead by 33. This article discusses other reasons that can cause a sequence skip: https://www.cybertec-postgresql.com/en/gaps-in-sequences-postgresql/ But I am not seeing any of those events. This appears to happen randomly. Anyone else seeing this? I migrated from RDS/Postgres and never experienced this. This just started on the migration to Aurora Postgres.
MWAA Airflow ssh Access to Fargate?
Hi all, We are in the migration process from self-hosted airflow on ec2 to mwaa, I want to ssh into the scheduler, run few ls commands, run pip list/freeze, assign path,env variable, import aws connection etc, i know we can send airflow commands like dags backfill/list etc but is it possible to connect to the executor that runs on fargate ? When i run aws ecs list-clusters it does not return anything but i have 2 mwaa environments running Thanks
Can you combine S3 Transfer Acceleration with Horizontal Scaling & Request Parallelization?
Can you combine [S3 Transfer Acceleration](https://docs.aws.amazon.com/whitepapers/latest/s3-optimizing-performance-best-practices/using-amazon-s3-transfer-acceleration-to-accelerate-geographically-disparate-data-transfers.html) with [Horizontal Scaling & Request Parallelization](https://docs.aws.amazon.com/whitepapers/latest/s3-optimizing-performance-best-practices/horizontal-scaling-and-request-parallelization-for-high-throughput.html)? I assume you'd just need to enable Transfer Acceleration on the destination bucket and then use the Acceleration endpoint when setting up a parallelization mechanism like [TransferManager](https://docs.aws.amazon.com/sdk-for-java/v1/developer-guide/examples-s3-transfermanager.html)?
Getting ClientError: DHCP client not installed during VM import
I created a fresh AlmaLinux 8 VM on virtualbox and I converted it as an ova image that I uploaded into an S3 bucket for the purpose of doing a VM import. The problem is when I do an import via AWS cli, I get the following error after the VM conversion step: ClientError: DHCP client not installed I do know that a DHCP client is installed because I was testing the networking before I exported the image from virtualbox. Also, since AlmaLinux 8 is based on Centos 8 which is supported by AWS I thought the support will follow as well. I'm following this as a guide for doing the import procedure: https://docs.aws.amazon.com/vm-import/latest/userguide/vmimport-image-import.html Anyone got this error before and have some tips on how to get it working? Thanks!
AWS Transfer Family now supports multiple host keys and key types per server
AWS Transfer Family now supports up to ten host keys per SFTP server. In addition, ED25519 and ECDSA key types are now supported for server host keys. Previously, AWS Transfer Family only supported one host key per server, and only the RSA key type. These enhancements allow you to move your existing SFTP servers with multiple host keys and host key types to AWS Transfer Family. You will also be able to add and tag host keys before rotating them, giving you more control over your managed file transfer environments. Multiple host keys and host key types are supported in [all Regions where AWS Transfer Family is available](https://aws-preview.aka.amazon.com/about-aws/global-infrastructure/regional-product-services/). You can configure server host keys using the AWS Management Console, AWS Transfer Family API, or AWS Command Line Interface (CLI). To learn more about how to add multiple host keys to an SFTP server, visit our [documentation](https://docs.aws.amazon.com/transfer/latest/userguide/edit-server-config.html).
A/B Partitions with AWS EC2 instances
Is there a recommended way or guides on how to use the A/B partition upgrade scheme with AWS EC2 instances. This the scheme used by Android/ChromeOS for seamless upgrades of the operating system. References: , The requirement to specify the specific partition as the root volume makes it difficult for software running within the instance to change these values. Also if there is only one root instance specified how would a fallback boot work? I am looking for guidance and experiences of others in implementing this. Thanks in advance. : https://source.android.com/docs/core/ota/ab : https://blog.davidbyrne.io/2018/08/16/linux-ab-partitions
MGN for RDM, direct-attach disks(ISCSI,NBD)
I need to migrate multiple VMs with RDM and direct-attach disks(ISCSI, NBD). After reading, MGN agentless replication doesn't support migrating those VMs with independent disks, Raw Device Mappings (RDM), or direct-attach disks (iSCSI, NBD). Could the agent-based replication support migrating those VMs with RDM or direct-attach disks(ISCSI, NBD)?
Re-host migration of RHEL server to AWS
We have a requirement to migrate (Re-Host) RHEL 6 server which has MAC based licenses to AWS. Wanted to check how can we leverage existing on-prem Licenses in AWS which is MAC bases ? Does it require to deactivate license from on-prem and then activate it again in AWS ? Please suggest.
How to do offline export for Application Discovery Agent date?
We have a customer with security concerns, and who does not want the Application Discovery Service Agent to be able to access the internet. Can we export the collected utilization data from each server as excel or CSV file from the server itself, without using the AWS Console? The FAQS says that this is possible: *The Discovery Agent can be operated in an offline test mode that writes data to a local file so customers can review collected data before enabling online mode.* Link: https://aws.amazon.com/application-discovery/faqs/ Can anyone confirm that this can be done offline without outside access to the server? If so, how? Thanks in advance.